Verbatim text: Stoutamire, W. P. 1974. Relationships of purple-fringed orchids Platanthera psycodes and P. grandiflora. Brittonia 26: 42–58.
Author: Stoutamire, W.P.
Year: 1974
Title: Relationships of purple-fringed orchids Platanthera psycodes and P. grandiflora
Journal: Brittonia
Volume: 26
Pages: 42–58