Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 185-194

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 195-203

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 205-210

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 125-130

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 131-134

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 135-150

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 165-178

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 179-183

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 301-304

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 305-308

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 121-124

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 151-162

Published in Journal of South African Botany, in 1972, in volume 38, issue 3, pages 163-164

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 299-300

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 211-214

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 215-235

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 241-247

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 249-259

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 261-275

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 67-80

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 81-95

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 97-101

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 103-113

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 45-53

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 55-61

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 63-65

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 33-42

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 43-44

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 277-298

Published in Journal of South African Botany, in 1972, in volume 38, issue 4, pages 237-239

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 9-27

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 29-31

Published in Journal of South African Botany, in 1972, in volume 38, issue 2, pages 115-119

Published in Journal of South African Botany, in 1972, in volume 38, issue 1, pages 1-7

Published in Journal of South African Botany, in 1972, in volume 38, issue 1