How to know the mosses and liverworts
Subtitle: pictured-keys for many of the North American mosses and liverworts, with suggestions and aids for their study
By: Henry Shoemaker Conrad.
Edition: Revised edition.
Series: Pictured key nature series
Publisher: W. C. Brown
Published: 1956
Place of publication: Dubuque, Iowa
Number of pages: 226
Subjects: Mosses -- North America; Liverworts -- North America
Notes: Previously published under title : How to know the mosses.