Published in Fieldiana. Botany, in 1963, in volume 29, issue 9, pages 535-541

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

Published in Fieldiana. Botany, in 1963, in volume 29, issue 10, pages 545-586

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