Genus Ptelea in western and southwestern U.S. and Mexico
Contributors: Greene, Edward Lee, 1843-1915.
Series: Contributions from Natl. Herbarium, Vol. X, Pt. 2
Publisher: U.S. G.P.O.
Published: 1906
Place of publication: [Washington?]
Format: Microform
Subjects: Genus Ptelea.