Mosquin, T. (1970), "The Reproductive Biology of Calypso bulbosa (Orchidaceae)", Can. Field-Nat., 84 (3): 291–296, doi:10.5962/p.342973, S2CID267444858 Summarized by Coleman and by Boyden
Mosquin, T. (1970), "The Reproductive Biology of Calypso bulbosa (Orchidaceae)", Can. Field-Nat., 84 (3): 291–296, doi:10.5962/p.342973, S2CID267444858 Summarized by Coleman and by Boyden