Authors: Louis O Williams

Published in Fieldiana Botany, in 1972, in volume 34, issue 8, pages 101-132

Created: 2019-01-03, modified: 2023-02-16

Authors: D R Simpson

Published in Fieldiana: Botany, New Series, in 1972, in volume 36, pages 1-11

Created: 2022-12-23, modified: 2022-12-23