| Rhododendron L. [1327] | |
| Portef. Hort., vol. 1 : (1847) [L. Constans] [47] | |
| drawing: L. Constans [200] | |
| lithography: Oudet | |
| Illustration contributed by: | U.S. Department of Agriculture, National Agricultural Library |
Portef. Hort., vol. 1 : (1847) [L. Constans]