Published in Journal of South African botany, in 1983, in volume 49, issue 3, pages 243-249
Created: 2024-09-04, modified: 2024-09-04![](https://www.biodiversitylibrary.org/pagethumb/63699149,60,60)
Published in Journal of South African Botany, in 1982, in volume 48, issue 1, pages 93-103
Created: 2024-09-04, modified: 2024-09-04