| C. Wilkes, U.S. Expl. Exped., vol. 16(1): (Botany pt. 2 Atlas Cryptogamia. ): (1855) [84] | |
| Illustration contributed by: | Smithsonian Institute, Washington, D.C., U.S.A. |
C. Wilkes, U.S. Expl. Exped., vol. 16(1): (Botany pt. 2 Atlas Cryptogamia. ): (1855)