| Publication Type: | Journal Article |
| Year of Publication: | 1916 |
| Authors: | W. Edwin Safford |
| Journal: | Bulletin of the Torrey Botanical ClubBulletin of the Torrey Botanical Club |
| Volume: | 43 |
| Pagination: | 183-193 |
| ISBN Number: | 00409618 |
| Short Title: | Bull. Torrey Bot. Club |
