A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia
By: by Edward W. Berry
Publisher: Government Printing Office
Published: 1911
Place of publication: Washington
Language: eng
Number of pages: 318
Subjects: Gymnosperms; Paleobotany
Notes: From the Proceedings of the United States National Museum, [Publication] No. 1821, v. 40, May 1911, p. 289-318.