Verbatim text: Ownbey, M. 1940. A monograph of the genus Calochortus. Ann. Missouri Bot. Gard. 27: 371–560.
Author: Ownbey, M.
Year: 1940
Title: A monograph of the genus Calochortus
Journal: Ann. Missouri Bot. Gard
Volume: 27
Pages: 371–560