| I. Sprague, A.B. Hervey, Fl. Field For.: p. 0, t. 0, fig. 0 (1880) [15] | |
| Illustration contributed by: | University of Toronto Library, Canada |
I. Sprague, A.B. Hervey, Fl. Field For.: p. 0, t. 0, fig. 0 (1880)