Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1956, in volume 22, pages 1-4

Published in Journal of South African botany, in 1956, in volume 22, pages 5-22

Published in Journal of South African botany, in 1956, in volume 22, pages 23-31

Published in Journal of South African botany, in 1956, in volume 22, pages 33-35

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1956, in volume 22, pages 37-39

Published in Journal of South African botany, in 1956, in volume 22, pages 41-63

Published in Journal of South African botany, in 1956, in volume 22, pages 65-77

Published in Journal of South African botany, in 1956, in volume 22, pages 79-83

Published in Journal of South African botany, in 1956, in volume 22, pages 85-86

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1956, in volume 22, pages 87-127

Published in Journal of South African botany, in 1956, in volume 22, pages 135-144

Published in Journal of South African botany, in 1956, in volume 22, pages 145

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1956, in volume 22, pages 147-149

Published in Journal of South African botany, in 1956, in volume 22, pages 151-159

Published in Journal of South African botany, in 1956, in volume 22, pages 161-193