Keys to spring plants
By: W. C. Muenscher and L,. C. Petry.
Contributors: Petry, Loren Clifford, 1887-
Edition: 5th edition revised.
Publisher: Comstock
Published: 1946
Place of publication: Ithaca, N.Y
Number of pages: 34
Subjects: Pteridophyta; Gymnosperms; Angiosperms; Botany -- New York (State)