Keys to spring plants
By: [by] W. C. Muenscher and L. C. Petry.
Contributors: Petry, Loren Clifford, 1887- joint author.
Edition: 3d ed., rev.
Publisher: W. C. Muenscher
Published: 1937
Place of publication: Ithaca, N.Y
Language: eng
Number of pages: 34
Subjects: Botany -- New York (State) -- Tompkins County.; Pteridophyta.; Gymnosperms.
Notes: "For the identification of the Pteridophyta, Gymnospermae and the commoner species of early-flowering Angiospermae found in the vicinity of Ithaca, New York."