A monograph of the genus Rosa in North America east of the Rocky Mountains
By: by Walter Hepworth Lewis
Published: 1957
Language: eng
Number of pages: 443
Subjects: Rosaceae
Notes: Photocopy. Ann Arbor, Mich. : University Microfilm, 1974. 21 cm.

Thesis (Ph. D.)--University of Virginia, 1957.

Includes bibliography (l. 307-325).