Pteridium aquilinum var. typicum R.M. Tryon

Chicago citation style
Pteridium aquilinum var. typicum R.M. Tryon. 30 Aug 1898. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13485580&repo=DPLA. (Accessed November 14, 2018.)
APA citation style
(30 Aug 1898) Pteridium aquilinum var. typicum R.M. Tryon. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13485580&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_13485580&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.