Citation: Fh. Vanderbank et al., PHYLOGENETIC-RELATIONSHIPS, BASED ON ALLOZYME DATA, BETWEEN 6 CYCAD TAXA INDIGENOUS TO SOUTH-AFRICA, South African journal of botany, 64(3), 1998, pp. 182-188
Citation: D. Hellbrugge et al., A NEW SMALL-FLOWERED PELARGONIUM SPECIES (GERANIACEAE) FROM THE WESTERN CAPE PROVINCE, SOUTH-AFRICA, South African journal of botany, 62(3), 1996, pp. 143-145
Citation: P. Vorster, ENCEPHALARTOS VENETUS (ZAMIACEAE) - A NEW SPECIES FROM THE NORTHERN PROVINCE, South African journal of botany, 62(2), 1996, pp. 71-75
Citation: P. Vorster, ENCEPHALARTOS SENTICOSUS (ZAMIACEAE) - A NEW SPECIES FROM NORTHERN KWAZULU-NATAL AND SWAZILAND, South African journal of botany, 62(2), 1996, pp. 76-79
Citation: P. Vorster, PELARGONIUM REDACTUM (GERANIACEAE) - A NEW SPECIES FROM THE NORTHERN CAPE-PROVINCE AND NAMIBIA, South African journal of botany, 62(1), 1996, pp. 54-56
Citation: P. Vorster, ENCEPHALARTOS-BREVIFOLIOLATUS (ZAMIACEAE) - A NEW SPECIES FROM THE NORTHERN PROVINCE, South African journal of botany, 62(1), 1996, pp. 61-64
Citation: P. Vorster, JUSTIFICATION FOR THE GENERIC STATUS OF COURTOISINA (CYPERACEAE), Biological Journal of the Linnean Society, 121(3), 1996, pp. 271-280
Citation: P. Vorster et P. Heibloem, ENCEPHALARTOS SUCCESSIBUS (ZAMIACEAE) - A NEW SPECIES FROM UGANDA, South African journal of botany, 61(6), 1995, pp. 347-351
Citation: Gl. Maggs et al., TAXONOMY OF THE GENUS PELARGONIUM (GERANIACEAE) - THE SECTION POLYACTIUM .2. THE SUBSECTION CAULESCENTIA, South African journal of botany, 61(4), 1995, pp. 173-179
Citation: Gl. Maggs et al., TAXONOMY OF THE GENUS PELARGONIUM (GERANIACEAE) - THE SECTION POLYACTIUM .1. CIRCUMSCRIPTION AND INTRASECTIONAL CLASSIFICATION, South African journal of botany, 61(2), 1995, pp. 53-59
Citation: Gm. Kondolf et P. Vorster, CHANGING WATER-BALANCE OVER TIME IN RUSH CREEK, EASTERN CALIFORNIA, 1860-1992, Water resources bulletin, 29(5), 1993, pp. 823-832