Ferguson, Carol S., Kathleen Donham, and Jennifer L. Brown. “Cypripedium Fasciculatum (Orchidaceae) Anthesis and Fruit Set in Relationship to Diapriid Activity”. Selbyana 26, no. 1/2 (June 1, 2005): 103–113. Accessed September 13, 2024. https://ojs.test.flvc.org/selbyana/article/view/121390.