| J. Paxton, Paxton’s Mag. Bot., vol. 2 : p. 0, t. 0, fig. 0 (1835) [41] | |
| Illustration contributed by: | Pennsylvania Horticultural Society, U.S.A. |
J. Paxton, Paxton’s Mag. Bot., vol. 2 : p. 0, t. 0, fig. 0 (1835)