Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 41-43
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 45-48
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 49-84
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 3-22
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 23-33
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 35-39
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 85-90
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 95-109
Published in Journal of South African Botany, in 1973, in volume 39, issue 1, pages 1
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 179-183
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 185-195
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 111
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 113-121
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 123-129
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 233-234
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 235-243
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 245-247
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 213-227
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 229-232
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 197
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 201-203
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 205-211
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 255-260
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 261-267
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 269
Published in Journal of South African Botany, in 1973, in volume 39, issue 4, pages 273-276
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 131-132
Published in Journal of South African Botany, in 1973, in volume 39, issue 3, pages 249-254
Published in Journal of South African Botany, in 1973, in volume 39, issue 4, pages 277-374
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 133-140
Published in Journal of South African Botany, in 1973, in volume 39, issue 2, pages 141-178