Published in Journal of South African botany, in 1961, in volume 27, pages 1-3

Published in Journal of South African botany, in 1961, in volume 27, pages 5-6

Published in Journal of South African botany, in 1961, in volume 27, pages 7-10

Published in Journal of South African botany, in 1961, in volume 27, pages 11-13

Published in Journal of South African botany, in 1961, in volume 27, pages 15-46

Published in Journal of South African botany, in 1961, in volume 27, pages 47-63

Published in Journal of South African botany, in 1961, in volume 27, pages 65-71

Published in Journal of South African botany, in 1961, in volume 27, pages 73-75

Published in Journal of South African botany, in 1961, in volume 27, pages 77-80

Published in Journal of South African botany, in 1961, in volume 27, pages 81-85

Published in Journal of South African botany, in 1961, in volume 27, pages 99-100

Published in Journal of South African botany, in 1961, in volume 27, pages 101-110

Published in Journal of South African botany, in 1961, in volume 27, pages 111-123

Published in Journal of South African botany, in 1961, in volume 27, pages 125-130

Published in Journal of South African botany, in 1961, in volume 27, pages 131-137

Published in Journal of South African botany, in 1961, in volume 27, pages 139

Published in Journal of South African botany, in 1961, in volume 27, pages 141-146

Published in Journal of South African botany, in 1961, in volume 27, pages 147-151

Published in Journal of South African botany, in 1961, in volume 27, pages 153-165

Published in Journal of South African botany, in 1961, in volume 27, pages 167-168

Published in Journal of South African botany, in 1961, in volume 27, pages 169-180

Published in Journal of South African botany, in 1961, in volume 27, pages 181-187

Published in Journal of South African botany, in 1961, in volume 27, pages 189-194

Published in Journal of South African botany, in 1961, in volume 27, pages 195-228

Published in Journal of South African botany, in 1961, in volume 27, pages 229-231

Published in Journal of South African botany, in 1961, in volume 27, pages 233-235

Published in Journal of South African botany, in 1961, in volume 27, pages 237-239

Published in Journal of South African botany, in 1961, in volume 27, pages 241-251

Published in Journal of South African botany, in 1961, in volume 27, pages 253-254

Published in Journal of South African botany, in 1961, in volume 27, pages 255-265

Published in Journal of South African botany, in 1961, in volume 27, pages 267-270