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Rhodes > Botany > Research


The following are the Department's peer-reviewed publications. For details of our individual research interests, please visit our individual pages: Brad Ripley, Susi VetterCraig Peter, Julie CoetzeeTony DoldTed Botha and Roy Lubke.


Peer-reviewed Publications


Hoppe-Speer, S.C., Adams, J.B. & Rajkaran, A. 2015. Mangrove expansion and population structure at a planted site, East London, South Africa. Southern Forests: a Journal of Forest Science, 0: 1–9. Available: http://dx.doi.org/10.2989/20702620.2014.1001622 .

 Kong, T.M., Kellner, K., Austin, D.E., Els, Y. & Orr, B.J. 2015. Enhancing Participatory Evaluation of Land Management through Photo Elicitation and Photovoice. Society & Natural Resources28: 212–229. Available: http://dx.doi.org/10.1080/08941920.2014.941448 .

 Lorrain, A., Graham, B.S., Popp, B.N., Allain, V., Olson, R.J., Hunt, B.P.V., Potier, M., Fry, B., Galván-Magaña, F., Menkes, C.E.R., Kaehler, S. & Ménard, F. 2015. Nitrogen isotopic baselines and implications for estimating foraging habitat and trophic position of yellowfin tuna in the Indian and Pacific Oceans. Deep Sea Research Part II: Topical Studies in Oceanography, Impacts of climate on marine top predators113: 188–198. Available: http://dx.doi.org/10.1016/j.dsr2.2014.02.003 .

 Martínez-Azorín, M., Pinter, M., Deutsch, G., Brudermann, A., Dold, A.P., Crespo, M.B., Pfosser, M. & Wetschnig, W. 2014. Massonia amoena (Asparagaceae, Scilloideae), a striking new species from the Eastern Cape, South Africa. Phytotaxa181: 121–137. Available: http://dx.doi.org/10.11646/phytotaxa.181.3.1 .

 Melidonis, C.A. & Peter, C.I. 2015. Diurnal pollination, primarily by a single species of rodent, documented in Protea foliosa using modified camera traps. South African Journal of Botany, 97: 9–15. Available: http://dx.doi.org/10.1016/j.sajb.2014.12.009 .

 Wheeler, A., Knight, A.T. & Vetter, S. 2015. Examining the evidence for ecologically sustainable ostrich breeding practices on natural veld in the Little Karoo, South Africa. African Journal of Range & Forage Science0: 1–9. Available: http://dx.doi.org/10.2989/10220119.2014.982708 .


Brunbjerg, A.K., Cavender-Bares, J., Eiserhardt, W.L., Ejrnæs, R., Aarssen, L.W., Buckley, H.L., Forey, E., Jansen, F., Kattge, J., Lane, C., Lubke, R.A., Moles, A.T., Monserrat, A.L., Peet, R.K., Roncal, J., Wootton, L. &  Svenning, J.-C. 2014. Multi-scale phylogenetic structure in coastal dune plant communities across the globe. Journal of Plant Ecology7:101-114 rtt069.Available:         http://dx.doi.org/doi:10.1093/jpe/rtt069

 Clark, V.R., Dold, A.P., McMaster, C., McGregor, G., Bredenkamp, C.  & Barker, N.P. 2014. Rich sister, poor cousin: Plant diversity and endemism in the Great Winterberg-Amatholes (Great Escarpment, Eastern Cape, South Africa). South African Journal of Botany92: 159–174.

 Duffy, K.J., Johnson, S.D. & Peter, C.I. 2014. A Temporal Dimension to the Influence of Pollen Rewards on Bee Behaviour and Fecundity in Aloe tenuior. PLoS ONE 9: e94908. Available: http://dx.doi.org/doi:10.1371/journal.pone.0094908

 Hobohm, C., Vanderplank, S.E., Janišová, M., Tang, C.Q., Pils, G., Werger, M.J.A., Tucker, C.M., Clark, V.R., Barker, N.P., Ma, K., Moreira-Muñoz, A., Deppe, U., Francioli, S.E., Huang, J., Jansen, J., Ohsawa, M., Noroozi, J., Sequeira, M.P. da S.M. de, Bruchmann, I., Yang, W. & Yang, Y.  2014. Synthesis, in: Hobohm, C. (Ed.), Endemism in Vascular Plants, Plant and Vegetation. Springer Netherlands, pp. 311–321.

 Iamonico, D., McKenzie, R.J. & Barker, N.P. 2014. (2281) Proposal to reject the name Arnica coronopifolia (Asteraceae). Taxon63: 436–437.Available: http://dx.doi.org/doi:10.12705/632.29

 Ibraheem, O., Botha, C.E.J., Bradley, G., Dealtry, G. & Roux, S. 2014. Rice sucrose transporter1 (OsSUT1) up-regulation in xylem parenchyma is caused by aphid feeding on rice leaf blade vascular bundles. Plant Biology J 16: 783–791.Available: http://dx.doi.org/doi:10.1111/plb.12117

 Khan, F., Hill, J., Kaehler, S., Allsopp, M. & van Vuuren, S. 2014. Antimicrobial properties and isotope investigations of South African honey. Journal Applied Microbiology117: 366–379. Available: http://dx.doi.org/doi:10.1111/jam.12533

 Kong, T.M., Kellner, K., Austin, D.E., Els, Y. & Orr, B.J.2015. Enhancing Participatory Evaluation of Land Management through Photo Elicitation and Photovoice. Society & Natural Resources 28: 212–229.Available: http://dx.doi.org/doi:10.1080/08941920.2014.941448

 Linder, H.P. & Barker, N.P. 2014. Does polyploidy facilitate long-distance dispersal? Annals of Botany113:1175–1183. Available: http://dx.doi.org/doi:10.1093/aob/mcu047

 Linder, H.P., Perl, F., Bouchenak-Khelladi, Y. & Barker, N.P. 2014. Phylogeographical Pattern in the Southern African Grass Tenaxia disticha (Poaceae). Systematic Botany 39, 428–440.Available: http://dx.doi.org/doi:10.1600/036364414X680906

 Lorrain, A., Graham, B.S., Popp, B.N., Allain, V., Olson, R.J., Hunt, B.P.V., Potier, M., Fry, B., Galván-Magaña, F., Menkes, C.E.R., Kaehler, S. & Ménard, F. 2015a. Nitrogen isotopic baselines and implications for estimating foraging habitat and trophic position of yellowfin tuna in the Indian and Pacific Oceans. Deep Sea Research Part II: Topical Studies in Oceanography, Impacts of climate on marine top predator, 113: 188–198. Available: http://dx.doi.org/doi:10.1016/j.dsr2.2014.02.003

 Martínez-Azorín, M., Crespo, M.B., Dold, A.P., Pinter, M. & Wetschnig, W. 2014a. Nicipe rosulata (Ornithogaloideae, Hyacinthaceae), a New Species from the Little Karoo in South Africa, with a New Combination in the Genus. Systematic Botany39: 785–790. Available : http://dx.doi.org/doi:10.1600/036364414X682265

 Martínez-Azorín, M., Pinter, M., Deutsch, G., Brudermann, A., Dold, A.P., Crespo, M.B., Pfosser, M. & Wetschnig, W. 2014b. Massonia amoena (Asparagaceae, Scilloideae), a striking new species from the Eastern Cape, South Africa. Phytotaxa, 181: 121–137. Available: http://dx.doi.org/doi:10.11646/phytotaxa.181.3.1

 Martinez-Azorin, M., Clark, V.R., Pinter, M., Dold, A.P., Crespo, M.B., Barker, N.P., Pfosser, M. & Wetschnig, W. 2014. Massonia dentata (Asparagaceae, Scilloideae), a new species from the Nuweveldberge, and typification of the Sneeuberg endemic M. calvata (southern Great Escarpment, South Africa). Phytotaxa 175 : 201–215.

 Martos, F., Johnson, S.D., Peter, C.I. & Bytebier, B. 2014. A molecular phylogeny reveals paraphyly of the large genus Eulophia (Orchidaceae): A case for the reinstatement of Orthochilus. Taxon, 63: 9–23. Available: http://dx.doi.org/doi:10.12705/631.6

 Mshoperi, E., Fogel, R. & Limson, J. 2014. Application of carbon black and iron phthalocyanine composites in bioelectricity production at a brewery wastewater fed microbial fuel cell. Electrochimica Acta, ADVANCES IN ELECTROCHEMICAL MATERIALSSCIENCE AND MANUFACTURING Selection of papers from the 13th ISE Topical Meeting07-10 April 2013, Pretoria, South Africa, 128: 311–317.Available: http://dx.doi.org/doi:10.1016/j.electacta.2013.11.016

 Peter, C.I. & Johnson, S.D. 2013. A pollinator shift explains floral divergence in an orchid species complex in South Africa. Annals of Botany ,mct216. Available: http://dx.doi.org/doi:10.1093/aob/mct216

 Peter, C.I. &  Shuttleworth, A., 2014. Catching on to concatenation: evidence for pre-pollination intra-sexual selection in plants. New Phytologist203: 4–6. Available: http://dx.doi.org/doi:10.1111/nph.12838

 Porter, S.N., Kaehler, S., Branch, G.M. & Sink, K.J. 2014. Riverine subsidies for inshore filter-feeder communities: potential influences on trophic patterns among bioregions. Marine Ecology Progress Series498:13–26.Available:  http://dx.doi.org/doi:10.3354/meps10634

 Ripley, B.S., Abraham, T., Klak, C. & Cramer, M.D. 2013. How succulent leaves of Aizoaceae avoid mesophyll conductance limitations of photosynthesis and survive drought. Journal of Experimental Botany, 64:5485-5496. Available: http://dx.doi.org/doi:10.1093/jxb/ert314

 Rourke, J.P., Clark, V.R. & Barker, N.P. 2013. Faurea recondita (Proteaceae): A new species from the Sneeuberg Centre of Endemism, South Africa. South African Journal of Botany87: 34–38. http://dx.doi.org/doi:10.1016/j.sajb.2013.03.009

 Taylor, S.H., Ripley, B.S., Martin, T., De-Wet, L.-A., Woodward, F.I. & Osborne, C.P. 2014. Physiological advantages of C4 grasses in the field: a comparative experiment demonstrating the importance of drought. Global Change Biology 20: 1992–2003. Available : http://dx.doi.org/doi:10.1111/gcb.12498

 Teske, P.R., Papadopoulos, I., Barker, N.P., McQuaid, C.D. &  Beheregaray, L.B. 2014. Mitonuclear discordance in genetic structure across the Atlantic/Indian Ocean biogeographical transition zone.  Journal of Biogeography41: 392–401. Available : http://dx.doi.org/doi:10.1111/jbi.12201

 Wetschnig, W., Martínez-Azorín, M., Pinter, M., Brudermann, A., Deutsch, G., Crespo, M.B., Dold, A.P. & Pfosser, M., 2014. Massonia saniensis (Asparagaceae, Scilloideae), a new species from Lesotho, southern Africa.  Phytotaxa173: 181–195. Available: http://dx.doi.org/doi:10.11646/phytotaxa.173.3.1


Barker, A., Barker, N.P. & Villet, M. 2013. Phylogeny of African Bruchids and their host plant Acacia species. South African  Journal of Botany, 86: 153–153. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.02.059

 Barker, N.P., Fearon, J.L. & Herbert, D.G., 2013. Moisture variables, and not temperature, are responsible for climate filtering and genetic bottlenecks in the South African endemic terrestrial mollusc Prestonella (Orthalicoidea). Conservation Genetics 14, 1065–1081. Available: http://dx.doi.org/doi:10.1007/s10592-013-0496-5

 Botha, C.E.J. 2013. A tale of two neglected systems—structure and function of the thin- and thick-walled sieve tubes in monocotyledonous leaves. Frontiers in Plant Science. Available: http://dx.doi.org/doi:10.3389/fpls.2013.00297

 Hoppe-Speer, S.C.L., Adams, J.B. & Rajkaran, A. 2013. Response of mangroves to drought and non-tidal conditions in St Lucia Estuary, South Africa. African Journal of Aquatic Science, 38: 153–162. Available: http://dx.doi.org/doi:10.2989/16085914.2012.759095

Ibraheem, O., Botha, C.E.J., Bradley, G., Dealtry, G. & Roux, S. 2014. Rice sucrose transporter1 (OsSUT1) up-regulation in xylem parenchyma is caused by aphid feeding on rice leaf blade vascular bundles. Plant Biology16: 783–791. Available: http://dx.doi.org/doi:10.1111/plb.12117

 Janks, M.R. & Barker, N.P. 2013. Using Mark-recapture to provide population census data for use in Red Listing of invertebrates: the rare terrestrial snail Prestonella bowkeri as a case study. Biodiversity and Conservation22: 1609–1621. Available: http://dx.doi.org/doi:10.1007/s10531-013-0495-3

 Janks, M.R., Sieben, E.J.J. & Barker, N.P. 2013. Montane wetlands of the Eastern Cape: An investigation of plant biodiversity and vegetation community types. South African Journal of Botany, 86: 166–167. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.02.106

 Jimoh, M.A., Kaehler, S. & Botha, C.E.J. 2013. Increased feeding damage under elevated Co2: The case of the Russian wheat aphid. South African Journal of Botany, 84: 30–37. Available: http://dx.doi.org/doi:10.1016/j.sajb.2012.09.002

 Kok, A.D. 2013. Rules of attraction?: the role of bait in small mammal sampling at high altitude in South Africa?: research article. African Zoology48 (1):84-95.

 Lombardi, G., Peter, C., Midgley, J.J. & Turner, R. 2013. Evidence for rodent- pollination in Erica lanuginosa (Ericaceae). South African Journal of Botany86: 175–176.

 Mablouké, C., Kolasinski, J., Potier, M., Cuvillier, A., Potin, G., Bigot, L., Frouin, P. & Jaquemet, S. 2013. Feeding habits and food partitioning between three commercial fish associated with artificial reefs in a tropical coastal environment. African Journal of Marine Science35: 323–334. Available: http://dx.doi.org/doi:10.2989/1814232X.2013.829790

 Marlin, D., Hill, M.P., Ripley, B.S., Strauss, A.J. & Byrne, M.J. 2013. The effect of herbivory by the mite Orthogalumna terebrantis on the growth and photosynthetic performance of water hyacinth (Eichhornia crassipes). Aquatic Botany, 104: 60–69. Available: http://dx.doi.org/doi:10.1016/j.aquabot.2012.09.005

 Martínez-Azorín, M., Crespo, M.B. & Dold, A.P. 2013a. Drimia cochlearis (Hyacinthaceae), a New Species from South Africa. Systematic Botany, 38: 332–338. Available: http://dx.doi.org/doi:10.1600/036364413X666831

 Martinez-Azorin, M., Crespo, M.B. & Dold, A.P. 2013b. New data on Albuca crispa (Hyacinthaceae, Ornithogaloideae), an erect-flowered Albuca from South Africa. Phytotaxa, 104: 1–11.

 Martinez-Azorin, M., Crespo, M.B. & Dold, A.P. 2013c. Stellarioides chartacea (Hyacinthaceae, Ornithogaloideae), a new species from the Eastern Cape Province in South Africa. Phytotaxa85: 1–8.

 Martinez-Azorin, M., Crespo, M.B. & Dold, A.P. 2013d. Trimelopter craibii (Hyacinthaceae, Ornithogaloideae), a new species from the North West Province of South Africa. Phytotaxa, 87: 50–60. Available: http://dx.doi.org/doi:10.11646/phytotaxa.87.3.3

 Martínez-Azorín, M., Crespo, M.B., Dold, A.P., Wetschnig, W., Pinter, M., Pfosser, M. & Jaarsveld, E.V. 2013. Sagittanthera (Hyacinthaceae, Urgineoideae), a new buzz pollinated genus from the Eastern Cape Province of South Africa. Phytotaxa, 98: 43–54. Available: http://dx.doi.org/doi:10.11646/phytotaxa.98.2.2

 McKenzie, R.J. 2013a. (2179) Proposal to reject the name Antrospermum floribundum (Asteraceae: Arctotideae). Taxon, 62: 834–834.

 McKenzie, R.J. 2013b. Revised typification of the name Venidium subacaule DC. (Asteraceae: Arctotideae). Taxon62: 819–820.

 Mckenzie, R.J. & Barker, N.P. 2013. The identity of Damatris pudica and typification of Arctotis breviscapa (Asteraceae, Arctotideae). Phytotaxa, 121: 57–60.

 Mwale, M., Kaiser, H., Barker, N.P., Wilson, A.B. & Teske, P.R. 2013. Identification of a uniquely southern African clade of coastal pipefishes Syngnathus spp. Journal of Fish Biology82: 2045–2062. Available: http://dx.doi.org/doi:10.1111/jfb.12130

 Nahon, S., Richoux, N.B., Kolasinski, J., Desmalades, M., Ferrier Pages, C., Lecellier, G., Planes, S. & Berteaux Lecellier, V. 2013. Spatial and Temporal Variations in Stable Carbon (δ13C) and Nitrogen (δ15N) Isotopic Composition of Symbiotic Scleractinian Corals. PLoS ONE 8, e81247. Available: http://dx.doi.org/doi:10.1371/journal.pone.0081247

 Peter, C.I. & Johnson, S.D. 2013. Generalized food deception: colour signals and efficient pollen transfer in bee-pollinated species of Eulophia (Orchidaceae). Botanical Journal of the Linnean Society, 171 (4): 713-729. Available: http://dx.doi.org/DOI:10.1111/boj.12028

 Quisthoudt, K., Adams, J., Rajkaran, A., Dahdouh-Guebas, F., Koedam, N. & Randin, C.F. 2013. Disentangling the effects of global climate and regional land-use change on the current and future distribution of mangroves in South Africa. Biodiversity and Conservation22: 1369–1390. Available: http://dx.doi.org/10.1007/s10531-013-0478-4

 Ripley, B.S., Abraham, T., Klak, C. & Cramer, M.D. 2013a. How succulent leaves of Aizoaceae avoid mesophyll conductance limitations of photosynthesis and survive drought. Journal of Experimental Botany64 (18): 5485-5496. Available: http://dx.doi.org/doi:10.1093/jxb/ert314

 Ripley, B.S., Cunniff, J. & Osborne, C.P. 2013b. Photosynthetic acclimation and resource use by the C3 and C4 subspecies of Alloteropsis semialata in low CO2 atmospheres. Global Change Biology, 19: 900–910. Available: http://dx.doi.org/doi:10.1111/gcb.12091

 Ripley, B.S., Klak, C., Abraham, T. & Cramer, M.D. 2013b. What is the function of leaf succulence in the Aizoaceae? South African Journal of Botany86: 155–155. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.02.066

 Rourke, J.P., Clark, V.R. & Barker, N.P. 2013. Faurea recondita (Proteaceae): A new species from the Sneeuberg Centre of Endemism, South Africa. South African Journal of Botany, 87: 34–38. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.03.009

 Saintilan, N., Wilson, N.C., Rogers, K., Rajkaran, A. & Krauss, K.W. 2014. Mangrove expansion and salt marsh decline at mangrove poleward limits. Global Change Biology, 20: 147–157. Available: http://dx.doi.org/doi:10.1111/gcb.12341

 Situngu, S. & Vetter, S. 2013. Botanical aspects of culturally important or vegetation types sites in Ndlambe Village, Eastern Cape, South Africa. South African Journal of Botany86: 167–167. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.02.107

 Thorne, C.-J. & Peter, C. 2013. The pollination biology of Solanum mauritianum. South African Journal of Botany86: 183–183. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.02.164

 Venter, N., Hill, M.P., Hutchinson, S.-L. & Ripley, B.S. 2013. Weevil borne microbes contribute as much to the reduction of photosynthesis in water hyacinth as does herbivory. Biological Control, 64: 138–142. Available: http://dx.doi.org/doi:10.1016/j.biocontrol.2012.10.011

 Venter, N. & Ripley, B.S. 2013. Drought responses of C-4 grasses determined by phylogeny or photosynthetic subtype. South African Journal of Botany86: 142–142. Available: http://dx.doi.org/doi:10.1016/j.sajb.2013.02.019

 Vetter, S. 2013. Development and sustainable management of rangeland commons – aligning policy with the realities of South Africa’s rural landscape. African Journal of Range & Forage Science30: 1–9. Available: http://dx.doi.org/doi:10.2989/10220119.2012.750628


Clark, V.R., Perera, S.J., Stiller, M., Stirton, C.H., Weston, P.H., Stoev, P., Coombs, G., Morris, D.B., Ratnayake-Perera, D., Barker, N.P. & McGregor, G.K. 2012. A rapid multi-disciplinary biodiversity assessment of the Kamdebooberge (Sneeuberg, Eastern Cape, South Africa): implications for conservation. SpringerPlus, 1: 56. Available: http://dx.doi.org/10.1186/2193-1801-1-56

 Cocks, M.L., Alexander, J. & Dold, T. 2012. Inkcubeko Nendalo: A Bio-cultural Diversity Schools Education Project in South Africa and its Implications for Inclusive Indigenous Knowledge Systems (IKS) Sustainability. Journal of Education for Sustainable Development6: 241–252. Available: http://dx.doi.org/10.1177/0973408212475232

 Cocks, M.L., Dold, T. & Vetter, S. 2012. “God is my forest” - Xhosa cultural values provide untapped opportunities for conservation. South African Journal of Science, 108. Available: http://dx.doi.org/10.4102/sajs.v108i5/6.880

 Coombs, G., Dold, A.P., Brassine, E.I. & Peter, C.I. 2012. Large pollen loads of a South African asclepiad do not interfere with the foraging behaviour or efficiency of pollinating honey bees. Naturwissenschaften, 99: 545–552. Available: http://dx.doi.org/10.1007/s00114-012-0932-2

 Daniels, R.J. & Peter, C.I. 2012. On the wings of butterflies: unique floral morphology and flower orientation promotes cross-pollination in Gloriosa superba. South African Journal of Botany79: 182–182.

 Hill, J.M., Kaehler, S. & Hill, M.P. 2012. Baseline isotope data for Spirodela sp.: Nutrient differentiation in aquatic systems. Water Research46: 3553–3562. Available: http://dx.doi.org/10.1016/j.watres.2012.03.063

 Kok, A.D., Parker, D.M. & Barker, N.P. 2012. Life on high: The diversity of small mammals at high altitude in South Africa. Biodiversity and Conservation, 21: 2823–2843. Available: http://dx.doi.org/10.1007/s10531-012-0340-0

 Kolasinski, J., Kaehler, S. & Jaquemet, S. 2012. Distribution and sources of particulate organic matter in a mesoscale eddy dipole in the Mozambique Channel (south-western Indian Ocean): Insight from C and N stable isotopes. Journal of Marine Systems, 96-97: 122–131. Available: http://dx.doi.org/10.1016/j.jmarsys.2012.02.015

 Martínez-Azorin, M., Crespo, M.B. & Dold, A.P. 2012. Hyacinthaceae: Albuca tenuifolia and A. Shawii (Ornithogaloideae), two distinct species from South Africa. Bothalia, 42: 193–196. Available: http://tinyurl.com/nmc32yf

 Martínez-Azorín, M., Crespo, M.B., Dold, A.P. & Barker, N.P. 2012. The identity of Albuca bifolia (Hyacinthaceae), and the description of two related new species, A. anisocrispa and A. pseudobifolia, from Eastern Cape, South Africa. Systematic Botany, 37: 599–605. Available: http://dx.doi.org/10.1600/036364412X648553

 McKenzie, R.J. 2012. (2108) Proposal to conserve the name Venidium hirsutum (Arctotis hirsuta) against V. subacaule (A. subacaulis) and Antrospermum kraussii (V. kraussii) (Asteraceae, Arctotideae). Taxon 61, 1327–1329. Available: http://tinyurl.com/k6hhuc8

 Pereira-Da-Conceicoa, L.L., Price, B.W., Barber-James, H.M., Barker, N.P., De Moor, F.C. & Villet, M.H. 2012. Cryptic variation in an ecological indicator organism: Mitochondrial and nuclear DNA sequence data confirm distinct lineages of Baetis harrisoni Barnard (Ephemeroptera: Baetidae) in southern Africa. BMC Evolutionary Biology, 12. Available: http://dx.doi.org/10.1186/1471-2148-12-26

 Pool, J.R., Ripley, B.S. & Powell, M. 2012. The carbon content of Portulacaria afra (L.) Jacq. South African Journal of Botany79: 206–207.

 Ripley, B.S., Strauss, R. & Osborne, C.P. 2012. Photosynthetic and anatomical acclimation by the C-3 and C-4 subspecies of Alloteropsis semialata in low CO2 atmospheres. South African Journal of Botany, 79: 208–208.

 Scheiter, S., Higgins, S.I., Osborne, C.P., Bradshaw, C., Lunt, D., Ripley, B.S., Taylor, L.L. & Beerling, D.J. 2012. Fire and fire-adapted vegetation promoted C4 expansion in the late Miocene. New Phytologist195: 653–666. Available: http://dx.doi.org/10.1111/j.1469-8137.2012.04202.x

 Situngu, S. & Lubke, R.A. 2012. A study of a population of a Thamnochortus species at the Sundays River, Eastern Cape. South African Journal of Botany, 79: 238–239.

 Taylor, C.L. & Barker, N.P. 2012a. DNA fingerprinting of Acacia karroo: Attempting to resolve taxonomic uncertainties and inform ecological observations. South African Journal of Botany,79: 215–215.

 Taylor, C.L. & Barker, N.P. 2012b. Species limits in Vachellia (Acacia) karroo (Mimosoideae: Leguminoseae): Evidence from automated ISSR DNA “fingerprinting.” South African Journal of Botany83: 36–43. Available: http://dx.doi.org/10.1016/j.sajb.2012.07.014

 Teske, P.R., Papadopoulos, I., Barker, N.P. & McQuaid, C.D. 2012. Mitochondrial DNA paradox: sex-specific genetic structure in a marine mussel - despite maternal inheritance and passive dispersal. BMC Genetics, 13. Available: http://dx.doi.org/10.1186/1471-2156-13-45

 Thorne, C.-J., Gornall, C. & Peter, C.I. 2012. How generalized is the pollination system of Hypoestes aristata? South African Journal of Botany, 79: 239–239.

 Vetter, S. & Bond, W.J. 2012. Changing predictors of spatial and temporal variability in stocking rates in a severely degraded communal rangeland. Land Degradation and Development23: 190–199. Available: http://dx.doi.org/10.1002/ldr.1076


 Adams, C.E. & Botha, C.E.J.  2011. Phloem transport, across the leaf basal meristem from source to sink leaves is symplasmic in Barley. South African Journal of Botany77: 568–568.

 Barker, N.P., Clark, V.R., 2011. Centres of endemism: Overview, analyses and the future. South African Journal of Botany, 77: 513–513.

 Booth, A.T.C., Vetter, S. & Hattas, D. 2011. A goat’s eye view of vegetation quality: Increased fPAR improves goats’ perception of foraging opportunities in the Richtersveld. South African Journal of Botany77: 565–565.

 Botha, C.E.J., Walton, S., Sacrine, S., Edwards, O. & Mahboob, J. 2011. Surviving the Russian wheat aphid: A structure-function analysis. South African Journal of Botany77:516–517.

 Cerros-Tlatilpa, R., Columbus, J.T. & Barker, N.P. 2011. Phylogenetic relationships of Aristida and relatives (Poaceae, Aristidoideae) based on noncoding chloroplast (trnL-F, rpl16) and nuclear (ITS) DNA sequences. American Journal of Botany, 98:1868–1886. Available: http://dx.doi.org/doi:10.3732/ajb.1100103

 Clark, V.R., Barker, N.P., McMaster, C. & Mucina, L. 2011. The Boschberg (Somerset East, Eastern Cape) — A floristic cross-roads of the southern Great Escarpment. South African Journal of Botany77: 94–104.Available:http://dx.doi.org/doi:10.1016/j.sajb.2010.06.005

 Clark, V.R., Barker, N.P. & Mucina, L. 2011a. A phytogeographic assessment of the Nuweveldberge, South Africa. South African Journal of Botany77:147–159.Available: http://dx.doi.org/doi:10.1016/j.sajb.2010.07.011

 Clark, V.R., Barker, N.P. & Mucina, L. 2011b. The Great Escarpment of southern Africa: a new frontier for biodiversity exploration. Biodiversity Conservation20: 2543–2561. Available: http://dx.doi.org/doi:10.1007/s10531-011-0103-3

 Clark, V.R., Barker, N.P. & Mucina, L. 2011c. The Roggeveldberge — Notes on a botanically hot area on a cold corner of the southern Great Escarpment, South Africa. South African Journal of Botany, 77:112–126Available:http://dx.doi.org/doi:10.1016/j.sajb.2010.07.001

 Clark, V.R., Barker, N., Mucina, L., 2011d. Taking the scenic route - the southern Great Escarpment (South Africa) as part of the Cape to Cairo floristic highway. Plant Ecology Divers4: 313–328. Available: http://dx.doi.org/doi:10.1080/17550874.2011.619584

 Clark, V.R., Barker, N.P. & Mucina, L.2011e. On-ramps and off-ramps: The phytogeography of the southern Great Escarpment, South Africa. South African Journal of Botany77: 520–520.

 Cocks, M.L., Dold, A.P., 2011. Indigenous plants: Rooted in science and culture. Inkcubeko nendalo - Bio-cultural Diversity Education (B-CDE) Program. South African Journal of Botany77: 521–521.

 Connan, M., Kelly, C.M.R., McQuaid, C.D., Bonnevie, B.T., Barker, N.P. 2010. Morphological versus molecular identification of Sooty (Phoebetria fusca) and Light-mantled (P. palpebrata) albatross chicks. Polar Biology34: 791–798. Available: http://dx.doi.org/doi:10.1007/s00300-010-0933-6

 Connor, A.L., Daniels, R.J., Janks, M.R., Clark, V.R. & Barker, N.P. 2011. The distribution, floristics, and palaeoecology of Merxmuellera macowanii montane wetlands in the Sneeuberg. South African Journal of Botany77: 570–571.

 Coombs, G., Dold, A.P. & Peter, C.I.2011a. Generalized fly-pollination in Ceropegia ampliata (Apocynaceae–Asclepiadoideae): the role of trapping hairs in pollen export and receipt. Plant Systematics and Evolution296:137–148. Available: http://dx.doi.org/doi:10.1007/s00606-011-0483-6

 Coombs, G., Dold, A.P., & Peter, C.I. 2011b. Pollination biology and pollination success of Cynanchum ellipticum (Apocynaceae - Asclepiadoideae) and the influence of large pollinarium loads on the foraging behaviour of its principal pollinator Apis mellifera. South African Journal of Botany77: 522–522.

 Coombs, G. & Peter, C.I. 2011. The invasive “mothcatcher” (Araujia sericifera; Asclepiadoideae) co-opts native honeybees as its primary pollinator in South Africa. South African Journal of Botany77: 521–521.

 Gilbert, M.E., Pammenter, N.W. & Ripley, B.S. 2011. Do partially buried dune plants grow in optimal trajectories? Plant Ecology, 212: 1263–1274. Available: http://dx.doi.org/doi:10.1007/s11258-011-9903-5

 Hebinck, P.G.M.& Shackleton, C.M. (Eds.). 2011. Reforming land and resource use in South Africa: impact on livelihoods, Routledge ISS studies in rural livelihoods. Routledge, London?; New York.

 Ibraheem, O., Botha, C.E.J. & Bradley, G.  2011. The role of the rice sucrose transporter SUT1 in retrieval during cereal stress response and phloem feeding. South African Journal of Botany77:532–533.

 Jimoh, M.A., Botha, C.E.J. & Edwards, O. 2011. Russian wheat aphid biotype RWASA2 causes more vascular disruption than RWASA1 on resistant barley lines. South African Journal of Botany, 77: 755–766.Available: http://dx.doi.org/doi:10.1016/j.sajb.2011.03.012

 Jimoh, M.A., Botha, C. E. J., Edwards, O. & Bradley, G.2011. Population growth rate and relative virulence of the two South African biotypes of Russian wheat aphid, Diuraphis noxia, and bird cherry-oat aphid, Rhopalosiphum padi, on resistant and non-resistant barley. Entomologia Experimentalis et Applicata138:12–20. Available: http://dx.doi.org/doi:10.1111/j.1570-7458.2010.01069

 Jimoh, M.A.&  Botha, C.E.J. 2011. Reproductive rate-related cell damage by South African biotypes of the Russian wheat aphid (Diuraphis noxia Kurdjumov) on selected resistant barley (Hordeum vulgare L.) lines. South African Journal of Botany77: 533–533.

 Johnson, S.D., Peter, C.I., Ellis, A.G., Boberg, E., Botes, C. &  Niet, T. van der, 2011. Diverse pollination systems of the twin-spurred orchid genus Satyrium in African grasslands. Plant Systematics Evolution, 292: 95–103. Available : http://dx.doi.org/doi:10.1007/s00606-010-0411-1

 Kelly, C.M.R., Branch, W.R., Broadley, D.G., Barker, N.P. & Villet, M.H. 2011. Molecular systematics of the African snake family Lamprophiidae Fitzinger, 1843 (Serpentes: Elapoidea), with particular focus on the genera Lamprophis Fitzinger 1843 and Mehelya Csiki 1903. Molecular Phylogenetics and Evolution58: 415–426. http://dx.doi.org/doi:10.1016/j.ympev.2010.11.010

 Kolasinski, J., Rogers, K., Cuet, P., Barry, B. & Frouin, P.2011. Sources of particulate organic     matter at the ecosystem scale: a stable isotope and trace element study in a tropical coral reef. Marine Ecology Progress Series443: 77–93. Available: http://dx.doi.org/doi:10.3354/meps09416

 Larsson, K.A.E., Saheed, S.A., Gradin, T., Delp, G., Karpinska, B., Botha, C.E.J. & Jonsson, L.M.V., 2011. Differential regulation of 3-aminomethylindole/N-methyl-3-aminomethylindole N-methyltransferase and gramine in barley by both biotic and abiotic stress conditions. Plant Physiology and Biochemistry49: 96–102.Available:http://dx.doi.org/doi:10.1016/j.plaphy.2010.10.005

 Lubke, R.A. 2011. Problems in compiling an account of the Restionaceae for the East Cape Flora. South African Journal of Botany77:539–539.

 Martínez-Azorín, M., Clark, V.R., Crespo, M.B., Dold, A.P. & Barker, N.P., 2011a. The rediscovery of Albuca tenuifolia, an orophilous species from the eastern Great Escarpment in South Africa. Nordic Journal of Botany, 29: 465–470. Available: http://dx.doi.org/doi:10.1111/j.1756-1051.2011.00944.

 Martínez-Azorín, M., Crespo, M.B., Dold, A.P. & Barker, N.P.2011b. Albuca annulata sp. nov. (Hyacinthaceae) from the Albany Centre of Endemism, South Africa. Nordic Journal of Botany29: 696–699. http://dx.doi.org/doi:10.1111/j.1756-1051.2011.01178

 Martínez-Azorín, M., Crespo, M.B., Dold, A.P. & Barker, N.P. 2011c. The identity of Albuca caudata Jacq. (Hyacinthaceae) and a description of a new related species: A. bakeri. PhytoKeys 5–19.Available: http://dx.doi.org/doi:10.3897/phytokeys.5.1166

 Martinez-Azorin, M., Crespo, M.B., Juan, A., Fay, M.F. & Barker, N.P. 2011. Preliminary data for a taxonomic revision of Albuca L. (Hyacinthaceae). South African Journal of Botany77:542–542.

 Martin, T. & Ripley, B. 2011. Responses of C-3 and C-4 Panicoid and non-Panicoid grasses to fire. South African Journal of Botany77: 541–542.

 McKenzie, R.J., Herman, P.P.J., Korniyenko, O. & Barker, N.P.2011. Revision of Arctotis sect. Anomalae (Asteraceae: Arctotideae), including the description of a new species from Northern Cape Province, South Africa. South African Journal of Botany77: 45–54. http://dx.doi.org/doi:10.1016/j.sajb.2010.05.002

 Nase, P. & Ripley, B. 2011. Ecophysiological responses of Portulacaria afra (L.) Jacq. to environmental factors. South African Journal of Botany77: 546–547.

 Peter, C.I., 2011. Modes of pollination, degree of specialization and the incidence of deception in the Orchidaceae. South African Journal of Botany77: 551–551.

 Peterson, P.M., Romaschenko, K., Barker, N.P. & Linder, H.P. 2011. Centropodieae and Ellisochloa, a new tribe and genus in Chloridoideae (Poaceae). Taxon60: 1113–1122.

 Phaliso, N., Barker, N.P., McKenzie, R.J. & Karis, P.-O., 2011. The prickly problem of Berkheya Ehrh. (Asteraceae). South African Journal of Botany77: 551–551.

 Price, B.W., Villet, M.H., Walton, S.M. & Barker, N.P.2011. Using molecules and morphology to infer the phylogenetic relationships and evolutionary history of the Dirini (Nymphalidae: Satyrinae), a tribe of butterflies endemic to Southern Africa. Systematic Entomology36: 300–316. Available: http://dx.doi.org/doi:10.1111/j.1365-3113.2010.00560

 Ripley, B. & Osborne, C.P.  2011. The response of grasses to future climates of elevated CO2 and temperature: What research questions are important for southern Africa? South African Journal of Botany77: 555–555.

 Ramdhani, S., Barker, N.P. & Cowling, R.M. 2011. Revisiting monophyly in Haworthia Duval (Asphodelaceae): Incongruence, hybridization and contemporary speciation. Taxon60 : 1001–1014.

 Sacrine, S., Papier, L. & Botha, C.E.J., 2011. The effects of barley infestation by the Russian Wheat Aphid (Diuraphis noxia Mordvilko) biotypes RWASA1 and RWASA2 at normal and elevated carbon dioxide levels. South African Journal of Botany77:517–517.

 Saheed, S.A. & Botha, C.E.J. 2011. Effects of aphid feeding on the anatomy and physiology of barley and wheat leaves under ambient CO2 conditions. South African Journal of Botany77: 555–556.

 Shackleton, S., Shackleton, C.M. & Shanley, P. (Eds.), 2011. Non-timber forest products in the global context, Tropical forestry. Springer, Heidelberg?; London.

 Stirton, C.H., Clark, V.R., Barker, N.P. & Muasya, A.M., 2011. Psoralea margaretiflora (Psoraleeae, Fabaceae): A new species from the Sneeuberg Centre of Floristic Endemism, Eastern Cape, South Africa. PhytoKeys 31–38. Available: http://dx.doi.org/doi:10.3897/phytokeys.5.1585

 Taylor, S.H., Ripley, B.S., Woodward, F.I. & Osborne, C.P.2011. Drought limitation of photosynthesis differs between C3 and C4 grass species in a comparative experiment. Plant, Cell & Environment, 34: 65–75.Available: http://dx.doi.org/doi:10.1111/j.1365-3040.2010.02226

 Teske, P.R., Papadopoulos, I., Mmonwa, K.L., Matumba, T.G., McQUAID, C.D., Barker, N.P. & Beheregaray, L.B.2011. Climate-driven genetic divergence of limpets with different life histories across a southeast African marine biogeographic disjunction: different processes, same outcome. Molecular Ecology 20: 5025–5041. Available: http://dx.doi.org/doi:10.1111/j.1365-294X.2011.05307

 Teske, P.R., Rius, M., McQuaid, C.D., Styan, C.A., Piggott, M.P., Benhissoune, S., Fuentes-Grünewald, C., Walls, K., Page, M., Attard, C.R., Cooke, G.M., McClusky, C.F., Banks, S.C., Barker, N.P. &  Beheregaray, L.B. 2011. “Nested” cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions. BMC Evolutionary Biology11: 176.Available:  http://dx.doi.org/doi:10.1186/1471-2148-11-176

 Teske, P.R., von der Heyden, S., McQuaid, C.D. & Barker, N.P. 2011. A review of marine phylogeography in southern Africa. South African Journal of Science107: 43–53.Available: http://dx.doi.org/doi:10.4102/sajs.v107i5/6.514

 Van Wijk, Y., Barker, N. & Cocks, M., 2011. Analysis of plant communities associated with Rock Art and Habitation sites in the Southern Cape. South African Journal of Botany77: 580–580.

 Venter, N. & Peter, C. 2011. Pollinator driven divergence in hawkmoth pollinated orchids (Mystacidium capense and M. venosum) and an estimate of rates of outcrossing in naturally pollinated fruit. South African Journal of Botany77: 564–564.

 Venter, N. & Ripley, B., 2011. Weevil borne pathogens contribute significantly to the reduction of photosynthesis in Eichhornia crassipes. South African Journal of Botany77: 564–564.

 Vetter, S., Knight, A.T., Cocks, M.L., Cowling, R.M., Mogano, L.L. & Dold, A.P. 2011. Integrating cultural values into conservation. South African Journal of Botany77: 564–565.

 Vetter, S. 2011. From aardvark to z-values: a decade of biodiversity monitoring in Africa’s arid and semi-arid southwest. South African Journal of Science107: 01–01. http://dx.doi.org/doi:10.4102/sajs.v107i3/4.646

 Wernecke, B. & Vetter, S., 2011. Botanical and indigenous vegetation classification in Joe Village, Eastern Cape, South Africa. South African Journal of Botany, 77: 580–580.


Ansorge, I.J., Pakhomov, E.A., Kaehler, S., Lutjeharms, J.R.E. & Durgadoo, J.V. 2009. Physical and biological coupling in eddies in the lee of the South-West Indian Ridge. Polar Biology33: 747–759. Available: http://dx.doi.org/doi:10.1007/s00300-009-0752-9

 Coombs, G. & Peter, C.I. 2010. The invasive “mothcatcher” (Araujia sericifera Brot.; Asclepiadoideae) co-opts native honeybees as its primary pollinator in South Africa. AoB PLANTS, 2010: plq021. Available: http://dx.doi.org/doi:10.1093/aobpla/plq021

 Devos, N., Barker, N.P., Nordenstam, B. & Mucina, L. 2010. A multi-locus phylogeny of Euryops (Asteraceae, Senecioneae) augments support for the “Cape to Cairo” hypothesis of floral migrations in Africa. Taxon, 59 (1): 57–67.

 Dold, T. 2010. Battles and giant earthworms?: the Kommetjievlakte of the Eastern Cape. Veld & Flora, 96 (3): 136-137.

 Gilbert, M.E. & Ripley, B.S. 2010. Resolving the differences in plant burial responses. Austral Ecology35: 53–59. Available: http://dx.doi.org/doi:10.1111/j.1442-9993.2009.02011.x

  Ibraheem, O., Botha, C.E.J.& Bradley, G. 2010. In silico analysis of cis-acting regulatory elements in 5′ regulatory regions of sucrose transporter gene families in rice (Oryza sativa Japonica) and Arabidopsis thaliana. Computational Biology and Chemistry34: 268–283.Available: http://dx.doi.org/doi:10.1016/j.compbiolchem.2010.09.003

 Jimoh, M. a., Botha, C. e. j., Edwards, O., Bradley, G., 2011. Population growth rate and relative virulence of the two South African biotypes of Russian wheat aphid, Diuraphis noxia, and bird cherry-oat aphid, Rhopalosiphum padi, on resistant and non-resistant barley. Entomologia Experimentalis et Applicata,138: 12–20. Available: http://dx.doi.org/doi:10.1111/j.1570-7458.2010.01069.x

 Linder, H.P., Baeza, M., Barker, N.P., Galley, C., Humphreys, A.M., Lloyd, K.M., Orlovich, D.A., Pirie, M.D., Simon, B.K., Walsh, N. & Verboom, G.A. 2010. A Generic Classification of the Danthonioideae (Poaceae). Annals of the Missouri Botanical Garden97: 306–364. Available: http://dx.doi.org/doi:10.3417/2009006

 McKenzie, R., Barker, N. & Helme, N. 2010. The Narrow-leaved Arctotis - in search of the critically endangered lowland fynbos daisy Arctotis angustifolia var. angustifoliaVeld & Flora96 (1): 30-31.

 McKenzie, R.J. & Barker, N.P., 2010. Typification of Names in Nine Species of Arctotis (Asteraceae, Arctotideae) from the Succulent Karoo, South Africa. Novon: A Journal for Botanical Nomenclature, 20: 298–302. Available: http://dx.doi.org/doi:10.3417/2009031

 Moore, G., Smith, G.F., Figueiredo, E., Demissew, S., Lewis, G., Schrire, B., Rico, L. & Van Wyk, A.E. 2010. Acacia, the 2011 Nomenclature Section in Melbourne, and beyond. Taxon 59 (4): 1188–1195.

 Price, B.W., Barker, N.P. & Villet, M.H. 2010. A watershed study on genetic diversity: Phylogenetic analysis of the Platypleura plumosa (Hemiptera: Cicadidae) complex reveals catchment-specific lineages. Molecular Phylogenetics and Evolution54: 617–626. Available: http://dx.doi.org/doi:10.1016/j.ympev.2009.10.011

 Ramdhani, S., Cowling, R.M. & Barker, N.P. 2010. Phylogeography of Schotia (Fabaceae): Recent Evolutionary Processes in an Ancient Thicket Biome Lineage. International Journal of Plant Sciences 171: 626–640. Available: http://dx.doi.org/doi:10.1086/653133

 Ripley, B., Donald, G., Osborne, C.P., Abraham, T. & Martin, T. 2010. Experimental investigation of fire ecology in the C3 and C4 subspecies of Alloteropsis semialata. Journal of Ecology98: 1196–1203. Available: http://dx.doi.org/doi:10.1111/j.1365-2745.2010.01700.x

 Ripley, B., Frole, K. & Gilbert, M. 2010. Differences in drought sensitivities and photosynthetic limitations between co-occurring C3 and C4 (NADP-ME) Panicoid grasses. Annals of Botany, 105 (3): 493-503. Available: http://dx.doi.org/doi:10.1093/aob/mcp307

 Saheed, S.A., Jonsson, L.M.V. & Botha, C.E.J. 2010. Russian wheat aphid causes greater reduction in phloem transport capacity of barley leaves than bird cherry-oat aphid. Acta Botanica Croatica, 69: 7–18.

 Taylor, S.H., Hulme, S.P., Rees, M., Ripley, B.S., Ian Woodward, F. & Osborne, C.P. 2010. Ecophysiological traits in C3 and C4 grasses: a phylogenetically controlled screening experiment. New Phytologist 185: 780–791. Available: http://dx.doi.org/doi:10.1111/j.1469-8137.2009.03102.x 

 Taylor, S.H., Ripley, B.S., Woodward, F.I. & Osborne, C.P. 2011. Drought limitation of photosynthesis differs between C3 and C4 grass species in a comparative experiment. Plant, Cell & Environment 34: 65–75. Available: http://dx.doi.org/doi:10.1111/j.1365-3040.2010.02226.x

 Teske, P.R., Forget, F.R.G., Cowley, P.D., Heyden, S. von der, & Beheregaray, L.B. 2010. Connectivity between marine reserves and exploited areas in the philopatric reef fish Chrysoblephus laticeps (Teleostei: Sparidae). Mar Biol 157, 2029–2042. Available: http://dx.doi.org/doi:10.1007/s00227-010-1471-z


Barker NP, Howis S, Nordenstam B, K+ñllersj+¦ M, Elden+ñs P, Griffioen C and Linder HP (2009). Nuclear and chloroplast DNA-based phylogenies of Chrysanthemoides Tourn. ex Medik. (Calenduleae; Asteraceae) reveal extensive incongruence and generic paraphyly, but support the recognition of infraspecific taxa in C. monilifera. South African Journal of Botany 75:560-572.

Clark VR, Barker NP and Mucina L (2009). The Sneeuberg: A new centre of floristic endemism on the Great Escarpment, South Africa. South African Journal of Botany 75:196-238.

Coombs G, Peter CI and Johnson SD (2009). A test for allee effects in the self-incompatible wasp-pollinated milkweed Gomphocarpus physocarpus. Austral Ecology 34:688-697.

Coombs G and Peter CI (2009). Do floral traits of Strelitzia reginae limit nectar theft by sunbirds? South African Journal of Botany 75:751-756.

Howis S, Barker NP and Mucina L (2009). Globally grown, but poorly known: Species limits and biogeography of Gazania Gaertn. (Asteraceae) inferred from chloroplast and nuclear DNA sequence data. Taxon 58:871-882.

Ibrahim DG, Burke T, Ripley BS and Osborne CP (2009). A molecular phylogeny of the genus Alloteropsis (Panicoideae, Poaceae) suggests an evolutionary reversion from C4 to C3 photosynthesis. Annals of Botany 103:127-136.

Kelly CMR, Barker NP, Villet MH and Broadley DG (2009). Phylogeny, biogeography and classification of the snake superfamily Elapoidea: A rapid radiation in the late Eocene. Cladistics 25:38-63.

Maroyi A (2009). Traditional homegardens and rural livelihoods in Nhema, Zimbabwe: a sustainable agroforestry system. International Journal of Sustainable Development and World Ecology 16:1-8.

Nordenstam B, Clark VR, Devos N and Barker NP (2009). Two new species of Euryops (Asteraceae: Senecioneae) from the Sneeuberg, Eastern Cape Province, South Africa. South African Journal of Botany 75:145-152.

Ollerton J, Alarcón R, Waser NM, Price MV, Watts S, Cranmer L, Hingston A, Peter CI and Rotenberry J (2009). A global test of the pollination syndrome hypothesis. Annals of Botany 103:1471-1480.

Pakhomov EA, Kaehler S and Perissonotto R (2009). The Prince Edward Islands' life-support system: relative importance of local and advected sources. Proceedings of The Kazan State University: Natural Sciences 151:104-121.

Peter CI, Coombs G, Huchzermeyer CF, Venter N, Winkler AC, Hutton D, Papier LA, Dold AP and Johnson SD (2009). Confirmation of hawkmoth pollination in Habenaria epipactidea: Leg placement of pollinaria and crepuscular scent emission. South African Journal of Botany 75:744-750.

Peter CI and Johnson SD (2009). Reproductive biology of Acrolophia cochlearis (Orchidaceae): Estimating rates of cross-pollination in epidendroid orchids. Annals of Botany 104:573-581.

Peter CI and Johnson SD (2009). Autonomous self-pollination and pseudo-fruit set in South African species of Eulophia (Orchidaceae). South African Journal of Botany 75:791-797.

Peter CI and Johnson SD (2009). Pollination by flower chafer beetles in Eulophia ensata and Eulophia welwitschii (Orchidaceae). South African Journal of Botany 75:762-770.

Pirie MD, Humphreys AM, Barker NP and Linder HP (2009). Reticulation, data combination, and inferring evolutionary history: An example from Danthonioideae (Poaceae). Systematic Biology 58:612-628.

Ramdhani S, Barker NP and Baijnath H (2009). Rampant non-monophyly of species in Kniphofia moench (Asphodelaceae) suggests a recent Afromontane radiation. Taxon 58:1141-1152.

Saheed SA, Cierlik I, Larsson KAE, Delp G, Bradley G, Jonsson LMV and Botha CEJ (2009). Stronger induction of callose deposition in barley by Russian wheat aphid than bird cherry-oat aphid is not associated with differences in callose synthase or 1,3-glucanase transcript abundance. Physiologia Plantarum 135:150-161.

Sauquet H, Weston PH, Barker NP, Anderson CL, Cantrill DJ and Savolainen V (2009). Using fossils and molecular data to reveal the origins of the Cape proteas (subfamily Proteoideae). Molecular Phylogenetics and Evolution 51:31-43.

Sauquet H, Weston PH, Anderson CL, Barker NP, Cantrill DJ, Mast AR and Savolainen V (2009). Contrasted patterns of hyperdiversification in Mediterranean hotspots. Proceedings of the National Academy of Sciences of the United States of America 106:221-225.

Schrire BD, Lavin M, Barker NP and Forest F (2009). Phylogeny of the tribe Indigofereae (Leguminosae-Papilionoideae): Geographically structured more in succulent-rich and temperate settings than in grass-rich environments. American Journal of Botany 96:816-852.

Teske PR, McLay CL, Sandoval-Castillo J, Papadopoulos I, Newman BK, Griffiths CL, McQuaid CD, Barker NP, Borgonie G and Beheregaray LB (2009). Tri-locus sequence data reject a "Gondwanan origin hypothesis" for the African/South Pacific crab genus HymenosomaMolecular Phylogenetics and Evolution 53:23-33.

Teske PR, Winker H, McQuaid CD and Barker NP (2009). A tropical/subtropical biogeographic disjunction in southeastern Africa separates two evolutionarily significant units of an estuarine prawn. Marine Biology 156:1265-1275.

Van Grunsven RHA, Bos F, Ripley BS, Suehs CM and Veenendaal EM (2009). Release from soil pathogens plays an important role in the success of invasive Carpobrotus in the Mediterranean. South African Journal of Botany 75:172-175.

Vetter S (2009). Drought, change and resilience in south africa's arid and semi-arid rangelands. South African Journal of Science 105:29-33.


Behenna M, Vetter S and Fourie S (2008). Viability of alien and native seed banks after slash and burn: Effects of soil moisture, depth of burial and fuel load. South African Journal of Botany 74:454-462.

Buys MH, Janse van Rensburg LL, Mienie CMS, Barker N, Burgoyne PM, Mills L, Van Rensburg L and Hartmann H (2008). Applying AFLPs in Aizoaceae: The Delosperma herbeum complex as a case study. Biochemical Systematics and Ecology 36:92-100.

Cunniff J, Osborne CP, Ripley BS, Charles M and Jones G (2008). Response of wild C4 crop progenitors to subambient CO2 highlights a possible role in the origin of agriculture. Global Change Biology 14:576-587.

Gilbert M, Pammenter N and Ripley B (2008). The growth responses of coastal dune species are determined by nutrient limitation and sand burial. Oecologia 156:169-178.

Ibrahim DG, Gilbert ME, Ripley BS and Osborne CP (2008). Seasonal differences in photosynthesis between the C3 and C 4 subspecies of Alloteropsis semialata are offset by frost and drought. Plant, Cell and Environment 31:1038-1050.

Kelly CMR, Barker NP, Villet MH, Broadley DG and Branch WR (2008). The snake family Psammophiidae (Reptilia: Serpentes): Phylogenetics and species delimitation in the African sand snakes (Psammophis Boie, 1825) and allied genera. Molecular Phylogenetics and Evolution 47:1045-1060.

Larsen MW, Peter C, Johnson SD and Olesen JM (2008). Comparative biology of pollination systems in the African-Malagasy genus Brownleea (Brownleeinae: Orchidaceae). Botanical Journal of the Linnean Society 156:65-78.

McKenzie RJ, Hjertson M and Barker NP (2008). Typification of the name Arctotis lanata and those of some southern African Haplocarpha species (Asteraceae, Arctotideae). Taxon 57:612-614.

Osborne CP, Wythe EJ, Ibrahim DG, Gilbert ME and Ripley BS (2008). Low temperature effects on leaf physiology and survivorship in the C 3 and C4 subspecies of Alloteropsis semialata. Journal of Experimental Botany 59:1743-1754.

Pirie,M.D., A.M.Humphreys, C.Galley, N.P.Barker, G.A.Verboom, D.Orlovich, S.J.Draffin, K.Lloyd, C.M.Baeza, M.Negritto, E.Ruiz, J.H.C.Sanchez, E.Reimer, and H.P.Linder (2008). A novel supermatrix approach improves resolution of phylogenetic relationships in a comprehensive sample of danthonioid grasses. Molecular Phylogenetics and Evolution in press.

Ripley BS, Abraham TI and Osborne CP (2008). Consequences of C4 photosynthesis for the partitioning of growth: A test using C3 and C4 subspecies of Alloteropsis semialata under nitrogen-limitation. Journal of Experimental Botany 59:1705-1714.

Ripley BS, DeWet L and Hill MP (2008). Herbivory-induced reduction in photosynthetic productivity of water hyacinth, Eichhornia crassipes (Martius) Solms-Laubach (Pontederiaceae), is not directly related to reduction in photosynthetic leaf area. African Entomology 16:140-142.

Saheed SA, Liu L, Jonsson L and Botha CEJ (2008). Erratum to "Xylem - as well as phloem - sustains severe damage due to feeding by the Russian wheat aphid" [South African Journal of Botany 73(2007)593-599] (DOI:10.1016/j.sajb.2007.05.008). South African Journal of Botany 74:393.

White AG, vies-Coleman MT and Ripley BS (2008). Measuring and optimising umckalin concentration in wild-harvested and cultivated Pelargonium sidoides (Geraniaceae). South African Journal of Botany 74:260-267.


Barker NP, Galley C, Verboom GA, Mafa P, Gilbert M and Linder HP (2007). The phylogeny of the austral grass subfamily Danthonioideae: Evidence from multiple data sets. Plant Systematics and Evolution 264:135-156.

Barker NP, Weston PH, Rutschmann F and Sauquet H (2007). Molecular dating of the 'Gondwanan' plant family Proteaceae is only partially congruent with the timing of the break-up of Gondwana. Journal of Biogeography 34:2012-2027.

Barker NP and Fish L (2007). Rare and infrequent southern African grasses: Assessing their conservation status and understanding their biology. Biodiversity and Conservation 16:4051-4079.

de-Ademilua OE and Botha CEJ (2007). Sink to source transition of Pisum sativum leaves in relation to leaf plastochron index. American Journal of Plant Physiology 2:27-35.

de Wet LR and Botha CEJ (2007). Resistance or tolerance: An examination of aphid (Sitobion yakini) phloem feeding on Betta and Betta-Dn wheat (Triticum aestivum). South African Journal of Botany 73:35-39.

Edkins MT, Teske PR, Papadopoulos I and Griffiths CL (2007). Morphological and genetic analyses suggest that southern African crown crabs, Hymenosoma orbiculare, represent five distinct species. Crustaceana 80:667-683.

Galbusera PHA, Gillemot S, Jouk P, Teske PR, Hellemans B and Volckaert FAMJ (2007). Isolation of microsatellite markers for the endangered Knysna seahorse Hippocampus capensis and their use in the detection of a genetic bottleneck. Molecular Ecology Notes 7:638-640.

McKenzie RJ and Barker NP (2007). Proposal to conserve the name Venidium semipapposum (Arctotis semipapposa) against Arctotis scabra (Asteraceae, Arctotideae). Taxon 56:1300-1301.

Price BW, Barker NP and Villet MH (2007). Patterns and processes underlying evolutionary significant units in the Platypleura stridula L. species complex (Hemiptera: Cicadidae) in the Cape Floristic Region, South Africa. Molecular Ecology 16:2574-2588.

Ripley BS, Gilbert ME, Ibrahim DG and Osborne CP (2007). Drought constraints on C4 photosynthesis: Stomatal and metabolic limitations in C3 and C4 subspecies of Alloteropsis semialata. Journal of Experimental Botany 58:1351-1363.

Saheed SA, Liu L, Jonsson L and Botha CEJ (2007). Xylem - as well as phloem - sustains severe damage due to feeding by the Russian wheat aphid. South African Journal of Botany 73:593-599.

Saheed SA, Botha CEJ, Liu L and Jonsson L (2007). Comparison of structural damage caused by Russian wheat aphid (Diuraphis noxia) and Bird cherry-oat aphid (Rhopalosiphum padi) in a susceptible barley cultivar, Hordeum vulgare cv. Clipper. Physiologia Plantarum129:429-435.

Teske PR, Papadopoulos I, Zardi GI, McQuaid CD, Edkins MT, Griffiths CL and Barker NP (2007). Implications of life history for genetic structure and migration rates of southern African coastal invertebrates: Planktonic, abbreviated and direct development. Marine Biology 152:697-711.

Teske PR, Hamilton H, Matthee CA and Barker NP (2007). Signatures of seaway closures and founder dispersal in the phylogeny of a circumglobally distributed seahorse lineage. BMC Evolutionary Biology 7.

Teske PR, Lourie SA, Matthee CA and Green DM (2007). Hippocampus queenslandicus Horne, 2001 - A new seahorse species or yet another synonym? Australian Journal of Zoology 55:139-145.

Teske PR, Papadopoulos I, McQuaid CD, Newman BK and Barker NP (2007). Climate change, genetics or human choice: Why were the shells of mankind's earliest ornament larger in the Pleistocene than in the Holocene? PLoS ONE 2.

Teske PR, Lockyear JF, Hecht T and Kaiser H (2007). Does the endangered Knysna seahorse, Hippocampus capensis, have a preference for aquatic vegetation type, cover or height? African Zoology 42:23-30.

Teske PR, Froneman PW, Barker NP and McQuaid CD (2007). Phylogeographic structure of the caridean shrimp Palaemon peringueyi in South Africa: Further evidence for intraspecific genetic units associated with marine biogeographic provinces. African Journal of Marine Science 29:253-258.

Teske PR, Barker NP and McQuaid CD (2007). Lack of genetic differentiation among four sympatric southeast African intertidal limpets (Siphonariidae): Phenotypic plasticity in a single species? Journal of Molluscan Studies 73:223-228.

Vetter S (2007). Soil erosion in the Herschel district of South Africa: Changes over time, physical correlates and land users' perceptions. African Journal of Range and Forage Science 24:77-86.

Zardi GI, McQuaid CD, Teske PR and Barker NP (2007). Unexpected genetic structure of mussel populations in South Africa: Indigenous Perna perna and invasive Mytilus galloprovincialis. Marine Ecology Progress Series 337:135-144.


Addi A, Phillipson P and Hepburn HR (2006). Floral resources of Apis mellifera capensis in the fynbos biome in the Eastern Cape Province, South Africa. African Entomology 14:153-159.

Campbell BM, Gordon IJ, Luckert MK, Petheram L and Vetter S (2006). In search of optimal stocking regimes in semi-arid grazing lands: One size does not fit all. Ecological Economics 60:75-85.

de-Ademilua OE and Botha CEJ (2006). Elevated CO2 coupled with mineral N supply enhanced lateral branch development in common pea. Pakistan Journal of Biological Sciences 9:2831-2834.

Dold AP and Brink E (2006). Hyacinthaceae: Drimia montana (Urgineoideae), a new species from Eastern Cape, South Africa. Bothalia 36:64-66.

Lockyear JF, Hecht T, Kaiser H and Teske PR (2006). The distribution and abundance of the endangered Knysna seahorse Hippocampus capensis (Pisces: Syngnathidae) in South African estuaries. African Journal of Aquatic Science 31:275-283.

McKenzie RJ, Mitchell SD and Barker NP (2006). A new species of Arctotis (Compositae, Arctotideae) from kommetjie grassland in Eastern Cape Province, South Africa. Botanical Journal of the Linnean Society 151:581-588.

McKenzie RJ, Muller EM, Skinner AKW, Karis PO and Barker NP (2006). Phylogenetic relationships and generic delimitation in subtribe Arctotidinae (Asteraceae: Arctotideae) inferred by DNA sequence data from ITS and five chloroplast regions. American Journal of Botany 93:1222-1235.

McKenzie RJ, Herman PPJ and Barker NP (2006). Asteraceae: Arctotis decurrens (Arctotideae), the correct name for A. merxmuelleri and A. scullyi. Bothalia 36:171-173.

Peter CI and Johnson SD (2006). Anther cap retention prevents self-pollination by elaterid beetles in the South African orchid Eulophia foliosa. Annals of Botany 97:345-355.

Peter CI and Johnson SD (2006). Doing the twist: A test of Darwin's cross-pollination hypothesis for pollinarium reconfiguration. Biology Letters 2:65-68.

Pote J, Shackleton C, Cocks M and Lubke R (2006). Fuelwood harvesting and selection in Valley Thicket, South Africa. Journal of Arid Environments 67:270-287.

Ripley BS, Muller E, Behenna M, Whittington-Jones GM and Hill MP (2006). Biomass and photosynthetic productivity of water hyacinth (Eichhornia crassipes) as affected by nutrient supply and mirid (Eccritotarus catarinensis) biocontrol. Biological Control39:392-400.

Robertson MP and Barker NP (2006). A technique for evaluating species richness maps generated from collections data. South African Journal of Science 102:77-84.

Teske PR, McQuaid CD, Froneman PW and Barker NP (2006). Impacts of marine biogeographic boundaries on phylogeographic patterns of three South African estuarine crustaceans. Marine Ecology Progress Series 314:283-293.

Venter HJT, Dold AP, Verhoeven RL and Ionta G (2006). Kappia lobulata (Apocynaceae, Periplocoideae), a new genus from South Africa. South African Journal of Botany 72:529-533.

Verboom GA, Ntsohi R and Barker NP (2006). Molecular phylogeny of African Rytidosperma-affiliated danthonioid grasses reveals generic polyphyly and convergent evolution in spikelet morphology. Taxon 55:337-348.

Vetter S, Goqwana WM, Bond WJ and Trollope WW (2006). Effects of land tenure, geology and topography on vegetation and soils of two grassland types in South Africa. African Journal of Range and Forage Science 23:13-27.

Weston PH and Barker NP (2006). A new suprageneric classification of the Proteaceae, with an annotated checklist of genera. Telopea 11:314-344.


Barker NP (2005). A review and survey of basicarpy, geocarpy, and amphicarpy in the African and Madagascan flora. Annals of the Missouri Botanical Garden 92:445-462.

de-Ademilua OE and Botha CEJ (2005). A re-evaluation of plastochron index determination in peas - A case for using leaflet length. South African Journal of Botany 71:76-80.

Dold AP, Hammer SA and Barker NP (2005). Leaves of grass: A taxonomic revision of the genus Bergeranthus Schwantes (Aizoaceae). Haseltonia 78-97.

Goldblatt P, Dold AP and Manning JC (2005). Three cryptic new species of Aristea (Iridaceae) from southern Africa. Bothalia 35:1-6.

McKenzie RJ, Samuel J, Muller EM, Skinner AKW and Barker NP (2005). Morphology of cypselae in subtribe Arctotidinae (Compositae-Arctotideae) and its taxonomic implications. Annals of the Missouri Botanical Garden 92:569-594.

Teske PR, Hamilton H, Palsb°ll PJ, Choo CK, Gabr H, Lourie SA, Santos M, Sreepada A, Cherry MI and Matthee CA (2005). Molecular evidence for long-distance colonization in an Indo-Pacific seahorse lineage. Marine Ecology Progress Series 286:249-260.

Vetter S (2005). Rangelands at equilibrium and non-equilibrium: Recent developments in the debate. Journal of Arid Environments 62:321-341.


Barker NP, Muller EM and Mill RR (2004). A yellowwood by any other name: Molecular systematics and the taxonomy of Podocarpus and the Podocarpaceae in southern Africa. South African Journal of Science 100:629-632.

Botha CEJ and Matsiliza B (2004). Reduction in transport in wheat (Triticum aestivum) is caused by sustained phloem feeding by the Russian wheat aphid (Diuraphis noxia). South African Journal of Botany 70:249-254.

Botha CEJ, Cross RHM and Gerber J (2004). The microstructure of plasmodesmata in internodal stem tissue of the Saccharum hybrid var. NCo376: Evidence for an apoplasmic loading pathway. South African Journal of Science 100:619-623.

Cocks ML and Dold AP (2004). A new broom sweeps clean: The economic and cultural value of grass brooms in the Eastern Cape Province, South Africa. Forests Trees and Livelihoods 14:33-42.

de-Ademilua OE and Botha CEJ (2004). The effects of elevated CO2 and nitrogen availability supersedes the need for nodulation in peas grown under controlled environmental conditions. South African Journal of Botany 70:816-823.

Dold AP and Brink E (2004). Drimia chalumnensis (Hyacinthaceae - Urgineoideae), a new species from Eastern Cape, South Africa. South African Journal of Botany 70:631-634.

Johnson SD, Peter CI and gren J (2004). The effects of nectar addition on pollen removal and geitonogamy in the non-rewarding orchid Anacamptis morio. Proceedings of the Royal Society B: Biological Sciences 271:803-809.

Knevel IC, Lans T, Menting FBJ, Hertling UM and van der Putten WH (2004). Release from native root herbivores and biotic resistance by soil pathogens in a new habitat both affect the alien Ammophila arenaria in South Africa. Oecologia 141:502-510.

Lubke R and Brink E (2004). One hundred years of botany at Rhodes University. South African Journal of Science 100:609-614.

McKenzie RJ, Ward JM, Lovis JD and Breitwieser I (2004). Morphological evidence for natural intergeneric hybridization in the New Zealand Gnaphalieae (Compositae): Anaphalioides bellidioides x Ewartia sinclairii. Botanical Journal of the Linnean Society 145:59-75.

Peter CI, Dold AP, Barker NP and Ripley BS (2004). Pollination biology of Bergeranthus multiceps (Aizoaceae) with preliminary observations of repeated flower opening and closure. South African Journal of Science 100:624-629.

Ripley BS and Pammenter NW (2004). Do low standing biomass and leaf area index of sub-tropical coastal dunes ensure that plants have an adequate supply of water? Oecologia 139:535-544.

Ripley BS, Redfern SP and Dames J (2004). Quantification of the photosynthetic performance of phosphorus-deficient Sorghum by means of chlorophyll-a fluorescence kinetics. South African Journal of Science 100:615-618.

Vanderpoorten A and Barker NP (2004). A contribution to the moss flora of southern South Africa. Journal of Bryology 26:230-232.

Villet MH, Barker NP and Lunt N (2004). Mechanisms generating biological diversity in the genus Platypleura Amyot & Serville, 1843 (Hemiptera: Cicadidae) in southern Africa: Implications of a preliminary molecular phylogeny. South African Journal of Science 100:589-594.


Barker NP, Linder HP, Morton CM and Lyle M (2003). The paraphyly of Cortaderia (Danthonioideae; Poaceae): Evidence from morphology and chloroplast and nuclear DNA sequence data. Annals of the Missouri Botanical Garden 90:1-24.

Brink E and Dold AP (2003). Drimia acarophylla (Hyacinthaceae), a new species from Eastern Cape, South Africa. South African Journal of Botany 69:396-400.

Dold AP (2003). The rediscovery of Ornithogalum britteniae (Hyacinthaceae) and an amendment to the description. South African Journal of Botany 69:500-504.

Kelly CMR, Barker NP and Villet MH (2003). Phylogenetics of advanced snakes (Caenophidia) based on four mitochondrial genes. Systematic Biology 52:439-459.

Lubke RA, Hoare D, Victor J and Ketelaar R (2003). The vegetation of the habitat of the Brenton blue butterfly, Orachrysops niobe (Trimen), in the Western Cape, South Africa. South African Journal of Science 99:201-206.

Peter CI, Ripley BS and Robertson MP (2003). Environmental limits to the distribution of Scaevola plumieri along the South African coast. Journal of Vegetation Science 14:89-98.

Ripley BS, Kiguli LN and Barker NP (2003). Azolla filiculoides as a biofertiliser of wheat under dry-land soil conditions. South African Journal of Botany 69:295-300.

Robertson MP, Peter CI, Villet MH and Ripley BS (2003). Comparing models for predicting species' potential distributions: A case study using correlative and mechanistic predictive modelling techniques. Ecological Modelling 164:153-167.

Steinke TD and Lubke RA (2003). Arenicolous marine fungi from southern Africa. South African Journal of Botany 69:540-545.

Steinke TD, Lubke RA and Ward CJ (2003). The distribution of algae epiphytic on pneumatophores of the mangrove, Avicennia marina, at different salinities in the Kosi System. South African Journal of Botany 69:546-554.

Victor JE and Dold AP (2003). Threatened plants of the Albany Centre of Floristic Endemism, South Africa. South African Journal of Science 99:437-446.


Barker NP, Harman KT, Ripley BS and Bond J (2002). The genetic diversity of Scaevola plumieri (Goodeniaceae), an indigenous dune coloniser, as revealed by Inter Simple Sequence Repeat (ISSR) fingerprinting. South African Journal of Botany 68:532-541.

Barker NP, Weston PH, Rourke JP and Reeves G (2002). The relationships of the southern African Proteaceae as elucidated by internal transcribed spacer (ITS) DNA sequence data. Kew Bulletin 57:867-883.

Gilbert ME and Ripley BS (2002). The effect of smoke on the photosynthetic gas exchange of Chrysanthemoides monilifera. South African Journal of Botany 68:525-531.

Knevel IC, Venema HG and Lubke RA (2002). The search for indigenous dune stabilizers: Germination requirements of selected South African species. Journal of Coastal Conservation 8:169-178.

Matsiliza B and Botha CEJ (2002). Aphid (Sitobion yakini) investigation suggests thin-walled sieve tubes in barley (Hordeum vulgare) to be more functional than thick-walled sieve tubes. Physiologia Plantarum 115:137-143.


Barker NP, Faden RB, Brink E and Dold AP (2001). Commelinaceae: Rediscovery of Triceratella drummondii, and comments on its relationships and position within the family. Bothalia31:37-39.

Botha CEJ and Cross RHM (2001). Regulation within the supracellular highway - Plasmodesma are the key. South African Journal of Botany 67:1-9.

Dold AP and Cocks ML (2001). Traditional veterinary medicine in the Alice district of the Eastern Cape Province, South Africa. South African Journal of Science 97:375-379.

Lubke RA and Hertling UM (2001). The role of European marram grass in dune stabilization and succession near Cape Agulhas, South Africa. Journal of Coastal Conservation 7:171-182.

Matsiliza B and Barker NP (2001). A preliminary survey of plants used in traditional medicine in the Grahamstown area. South African Journal of Botany 67:177-182.

Palmer AR, Killer FJ, Avis AM and Tongway D (2001). Defining function in rangelands of the Peddie district, Eastern Cape, using Landscape Function Analysis. African Journal of Range and Forage Science 18:53-58.

Botha CEJ and Cross R (2000). Towards reconciliation of structure with function in plasmodesmata - Who is the gatekeeper? Micron 31:713-721.

Botha CEJ, Cross RHM, Van Bel AJE and Peter CI (2000). Phloem loading in the sucrose-export-defective (SXD-1) mutant maize is limited by callose deposition at plasmodesmata in bundle sheath-vascular parenchyma interface. Protoplasma 214:65-72.

Dold AP and Cocks ML (2000). The medicinal use of some weeds, problem and alien plants in the Grahamstown and Peddie districts of the Eastern Cape, South Africa. South African Journal of Science 96:467-473.

Dold AP and Moberg R (2000). Hyacinthaceae. Correction of a historical error in the taxonomic description of Urginea ciliata. Bothalia 30:46-48.

Hertling UM and Lubke RA (2000). Assessing the potential for biological invasion - The case of Ammophila arenaria in South Africa. South African Journal of Science 96:520-527.

Hoare DB, Victor JE, Lubke RA and Mucina L (2000). Vegetation of the coastal fynbos and rocky headlands south of George, South Africa. Bothalia 30:87-96.

Tansley SA and Brown CR (2000). RAPD variation in the rare and endangered Leucadendron elimense (Proteaceae): Implications for their conservation. Biological Conservation95:39-48.

Barker NP (1999). Merxmuellera cincta subsp. sericea (Poaceae), a new subspecies from the Eastern Cape, South Africa. South African Journal of Botany 65:104-109.

Birch NV, Avis AM and Palmer AR (1999). The effect of land-use on the vegetation communities along a topo-moisture gradient in the mid-Fish River valley, South Africa. African Journal of Range and Forage Science 16:1-8.

Dames JF, Straker CJ and Scholes MC (1999). Ecological and anatomical characterization of some Pinus patula ectomycorrhizas from Mpumalanga, South Africa. Mycorrhiza 9:9-24.

Dold AP and Cocks ML (1999). Preliminary list of Xhosa plant names from Eastern Cape, South Africa. Bothalia29:267-292.

Hertling UM and Lubke RA (1999). Use of Ammophila arenaria for dune stabilization in South Africa and its current distribution - Perceptions and problems. Environmental Management 24:467-482.

Hertling UM and Lubke RA (1999). Indigenous and Ammophila arenaria-dominated dune vegetation on the South African Cape coast. Applied Vegetation Science 2:157-168.

Johnson CF, Cowling RM and Phillipson PB (1999). The flora of the Addo Elephant National Park, South Africa: Are threatened species vulnerable to elephant damage? Biodiversity and Conservation 8:1447-1456.

Kiguli LN, Palmer AR and Avis AM (1999). A description of rangeland on commercial and communal land, Peddie district, South Africa. African Journal of Range and Forage Science16:89-95.

Lubke RA and Avis AM (1999). A review of the concepts and application of rehabilitation following heavy mineral dune mining. Marine Pollution Bulletin 37:546-557.

Ripley BS, Pammenter NW and Smith VR (1999). Function of leaf hairs revisited: The hair layer on leaves Arctotheca populifolia reduces photoinhibition, but leads to higher leaf temperatures caused by lower transpiration rates. Journal of Plant Physiology 155:78-85.

Barker NP, Linder HP and Harley EH (1998). Sequences of the grass-specific insert in the chloroplast rpoC2 gene elucidate generic relationships of the Arundinoideae (Poaceae). Systematic Botany 23:327-350.

Dames JF, Scholes MC and Straker CJ (1998). Litter production and accumulation in Pinus patula plantations of the Mpumalanga Province, South Africa. Plant and Soil 203:183-190.

Dold AP and Phillipson PB (1998). A revision of Lachenalia (Hyacinthaceae) in the Eastern Cape, South Africa. Bothalia 28:141-149.

Hsiao C, Jacobs SWL, Barker NP and Chatterton NJ (1998). A molecular phylogeny of the subfamily Arundinoideae (Poaceae) based on sequences of rDNA. Australian Systematic Botany 11:41-52.

Moore-Gordon CS, Cowan AK, Bertling I, Botha CEJ and Cross RHM (1998). Symplastic solute transport and avocado fruit development: A decline in cytokinin/ABA ratio is related to appearance of the Hass small fruit variant. Plant and Cell Physiology 39:1027-1038.

Cook ME, Graham LE, Botha CEJ and Lavin CA (1997). Comparative ultrastructure of plasmodesmata of Chara and selected bryophytes: Toward an elucidation of the evolutionary origin of plant plasmodesmata. American Journal of Botany 84:1169-1178.

Avis AM and Lubke RA (1996). Dynamics and succession of coastal dune vegetation in the Eastern Cape, South Africa. Landscape and Urban Planning 34:237-254.

Evert RF, Russin WA and Botha CEJ (1996). Distribution and frequency of plasmodesmata in relation to photoassimilate pathways and phloem loading in the barley leaf. Planta 198:572-579.

Lubke RA, Avis AM and Moll JB (1996). Post-mining rehabilitation of coastal sand dunes in Zululand, South Africa. Landscape and Urban Planning 34:335-345.

Richardson GR and Cowan AK (1996). Development of an abscisic acid biosynthesizing cell-free system from flavedo of Citrus sinensis fruit. Journal of Experimental Botany 47:455-464.

Avis AM (1995). An evaluation of the vegetation developed after artificially stabilizing South African coastal dunes with indigenous species. Journal of Coastal Conservation 1:41-50.

Avis AM (1994). Integrated environmental management and environmental awareness in South Africa: where are we going? Journal of Environmental Planning & Management 37:227-242.

Botha CEJ and Van Bel AJE (1992). Quantification of symplastic continuity as visualised by plasmodesmograms: diagnostic value for phloem-loading pathways. Planta 187:359-366.

Botha CEJ (1992). Plasmodesmatal distribution, structure and frequency in relation to assimilation in C3 and C4 grasses in southern Africa. Planta 187:348-358.

Cowan AK and Rose PD (1991). Abscisic acid metabolism in salt-stressed cells of Dunaliella salina: Possible interrelationship with ?-carotene accumulation. Plant Physiology97:798-803.

Avis AM (1989). A review of coastal dune stabilization in the Cape Province of South Africa. Landscape and Urban Planning 18:55-68.

Botha CEJ and Evert RF (1988). Plasmodesmatal distribution and frequency in vascular bundles and contiguous tissues of the leaf of Themeda triandra. Planta 173:433-441.

Botha CEJ, Evert RF, Cross RHM and Marshall DM (1982). The suberin lamella, a possible barrier to water movement from the veins to the mesophyll of Themeda triandra forsk. Protoplasma112:1-8.

Saenger P (1972). A rapid spectrophotometric method for the determination of bromine in seawater and in the ash of marine algae. Helgola?nder Wissenschaftliche Meeresuntersuchungen 23 :32-37.

Saenger P (1970). Secondary cortex formation in Osmundaria prolifera (Amansieae: Rhodomelaceae). Helgola?nder Wissenschaftliche Meeresuntersuchungen 21:305-309.

Guillarmod AJ (1969). The effect of land usage on aquatic and semi-aquatic vegetation at high altitudes in Southern Africa. Hydrobiologia 34:3-13.

Twyman ES (1959). The effect of iron supply on the yield and composition of leaves of tomato plants. Plant and Soil 10:375-388.

Jacot-Guillarmod A (1958). Temperature variations in male cones of encephalartos. Nature 182:474.

Last Modified :Tue, 27 Jun 2017 10:56:23 SAST