Catalogue of the Bryophta (hepatics, anthocerotes and mosses) and Pteridophyta (ferns and fern-allies) found in Pennsylvania.
By: By Thomas Conrad Porter ...
Contributors: Small, John Kunkel, 1869-1938.
Publisher: Ginn & company
Published: 1904
Place of publication: Boston
Language: eng
Number of pages: 66
Subjects: Mosses -- Pennsylvania; Ferns -- Pennsylvania
Notes: Edited by J.K. Small.