Reconsideration of certain members of Penstemon subsection Spectabiles
By: By Ira W. Clokey and David D. Keck
Published: 1939
Language: eng
Number of pages: 13
Notes: Reprinted from Bulletin of the Southern California Academy of Science, v. 38, January-April 1939, Part I, p. 8-13.

Includes bibliographical references (p. 13).