Peer-reviewed Publications

2010

Ramdhani S, Barker NP & Cowling RM (2010). Phylogeography of Schotia (Fabaceae): recent evolutionary processes in an ancient thicket biome lineage. International Journal of Plant Sciences 171: 626-640.

Ansorge IJ, Pakhomov EA, Kaehler S, Lutjeharms JRE and Durgadoo JV (2010). Physical and biological coupling in eddies in the lee of the South-West Indian Ridge. Polar Biology 33:747-759.

Devos N, Barker NP, Nordenstam B and 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 59:57-67.

Gilbert ME and Ripley BS (2010). Resolving the differences in plant burial responses. Austral Ecology 35:53-59.

Price BW, Barker NP and Villet MH (2010). A watershed study on genetic diversity: Phylogenetic analysis of the Platypleura plumosa (Hemiptera: Cicadidae) complex reveals catchment-specific lineages. Molecular Phylogenetics and Evolution 54:617-626.

Ripley B, Frole K and Gilbert M (2010). Differences in drought sensitivities and photosynthetic limitations between co-occurring C3 and C4 (NADP-ME) Panicoid grasses. Annals of Botany 105:493-503.

Taylor SH, Hulme SP, Rees M, Ripley BS, Ian Woodward F and Osborne CP (2010). Ecophysiological traits in C3 and C4 grasses: A phylogenetically controlled screening experiment. New Phytologist 185:780-791.

2009

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 Hymenosoma. Molecular 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.

2008

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.

2007

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.

2006

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.

2005

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.

2004

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.

2003

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.

2002

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.

2001

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.

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