Working list of North American pteridophytes
Subtitle: (north of Mexico) together with descriptions of a number of varieties not heretofore published
By: arranged and edited by Benjamin D. Gilbert.
Publisher: Published for the editor by L.C. Childs & son
Published: 1901
Place of publication: Utica, N.Y
Language: eng
Number of pages: 40
Subjects: Pteridophyta.