| Bot. Mus. Leafl., vol. 15 : t. 6 (1951-1952) [E.W. Smith] [57] | |
| drawing: E.W. Smith [38] | |
| Illustration contributed by: | Missouri Botanical Garden, St. Louis, U.S.A. |
Bot. Mus. Leafl., vol. 15 : t. 6 (1951-1952) [E.W. Smith]