Preliminary revision of North American species of Echinocactus, Cereus, and Opuntia
Contributors: Coulter, John Merle, 1851-1928.
Publisher: U.S. G.P.O.
Published: 1896
Place of publication: [Washington, D.C.]
Format: Microform
Subjects: Echinocactus.; Cereus.; Opuntia.