Cypripedium calceolus var. pubescens

Chicago citation style
Cypripedium calceolus var. pubescens. 20 May 1839. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2473309&repo=DPLA. (Accessed November 20, 2018.)
APA citation style
(20 May 1839) Cypripedium calceolus var. pubescens. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2473309&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmnhbotany_2473309&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.