Lycopodium clavatum var. megastachyon Fernald & Bissell

Chicago citation style
Lycopodium clavatum var. megastachyon Fernald & Bissell. 21 Jul 1924. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12237871&repo=DPLA. (Accessed December 16, 2018.)
APA citation style
(21 Jul 1924) Lycopodium clavatum var. megastachyon Fernald & Bissell. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12237871&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_12237871&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.