Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 1-11

Published in Journal of South African botany, in 1949, in volume 15, pages 13-22

Published in Journal of South African botany, in 1949, in volume 15, pages 23-30

Published in Journal of South African botany, in 1949, in volume 15, pages 43-48

Published in South African Journal of Science, in 1949, in volume 15, pages 49-54

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 55-57

Published in Journal of South African botany, in 1949, in volume 15, pages 97-100

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 101-112

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 113-114

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 115-120

Published in Journal of South African botany, in 1949, in volume 15, pages 79-92

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 121-125

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 35-42

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 59-78

Published in JOURNAL OF SOUTH AFRICAN BOTANY, in 1949, in volume 15, pages 31-33

Published in Journal of South African botany, in 1949, in volume 15, pages 93-95