How to know the mosses and liverworts :
Conard, Henry Shoemaker, 1874-.
How to know the mosses and liverworts : pictured-keys for determining many of the North American mosses and liverworts, with suggestions and aids for their study / Henry S. Conard. - Dubuque, Iowa : W. C. Brown, 1956. - 226 p. ; 22 cm.
0-697-04808-X
QK538 / C65
How to know the mosses and liverworts : pictured-keys for determining many of the North American mosses and liverworts, with suggestions and aids for their study / Henry S. Conard. - Dubuque, Iowa : W. C. Brown, 1956. - 226 p. ; 22 cm.
0-697-04808-X
QK538 / C65
