Published in Journal of South African botany, in 1964, in volume 30, pages 49-52

Published in Journal of South African botany, in 1964, in volume 30, pages 53-65

Published in Journal of South African botany, in 1964, in volume 30, pages 67-69

Published in Journal of South African botany, in 1964, in volume 30, pages 83-85

Published in Journal of South African botany, in 1964, in volume 30, pages 87-91

Published in Journal of South African botany, in 1964, in volume 30, pages 93-101

Published in Journal of South African botany, in 1964, in volume 30, pages 103-105

Published in Journal of South African botany, in 1964, in volume 30, pages 107-110

Published in Journal of South African botany, in 1964, in volume 30, pages 31-32

Published in Journal of South African botany, in 1964, in volume 30, pages 33-44

Published in Journal of South African botany, in 1964, in volume 30, pages 45-48

Published in Journal of South African botany, in 1964, in volume 30, pages 21-23

Published in Journal of South African botany, in 1964, in volume 30, pages 25

Published in Journal of South African botany, in 1964, in volume 30, pages 115-121

Published in Journal of South African botany, in 1964, in volume 30, pages 123-127

Published in Journal of South African botany, in 1964, in volume 30, pages 71-73

Published in Journal of South African botany, in 1964, in volume 30, pages 75-81

Published in Journal of South African botany, in 1964, in volume 30, pages 26

Published in Journal of South African botany, in 1964, in volume 30, pages 27-29

Published in Journal of South African botany, in 1964, in volume 30, pages 111-114

Published in Journal of South African botany, in 1964, in volume 30, pages 1-14

Published in Journal of South African botany, in 1964, in volume 30, pages 15-19

Published in Journal of South African botany, in 1964, in volume 30, pages 129-146

Published in Journal of South African botany, in 1964, in volume 30, pages 147-149

Published in Journal of South African botany, in 1964, in volume 30, pages 151-176

Published in Journal of South African botany, in 1964, in volume 30, pages 177-200

Published in Journal of South African botany, in 1964, in volume 30, pages 201-207

Published in Journal of South African botany, in 1964, in volume 30, pages 209-217

Published in Journal of South African botany, in 1964, in volume 30, pages 219-220

Published in Journal of South African botany, in 1964, in volume 30, pages 221-224

Published in Journal of South African botany, in 1964, in volume 30, pages 225-227

Published in Journal of South African botany, in 1964, in volume 30, pages 229-230

Published in Journal of South African botany, in 1964, in volume 30, pages 231-243