Template:Porter, 1894
- Porter, T.C. 1894. In: Torrey Botanical Club (ed.). Memoirs of the Torrey Botanical Club: Vol. V — List of Pteridophyta and Spermatophyta growing without cultivation in northeastern North America. Published for the Club by the Seeman Printery, Durham, N.C. 5(1893–1894). 376 pp. BHL