Analytic keys to the genera and species of North American mosses
By: by Charles Reid Barnes ; revised and extended by Fred DeForest Heald with the collaboration of the author.
Contributors: Heald, F. D. 1872-1954.
Series: CIHM/ICMH Microfiche series -- no. 12742
Publisher: University of Wisconsin
Published: 1981
Place of publication: Madison, Wis
Language: eng
Format: Microform
Number of pages: 120
Subjects: Mosses -- North America.
Notes: Cover date of publication: 1897.

"Published by authority of law and with the approval of the regents of the university."

Includes index.

From: Bulletin of the University of Wisconsin.  Science Series, Vol. 1, No. 5, pp. 157-369 (conclusion).

Filmed from a copy of the original publication held by the Library of Congress, Photoduplication Service. Ottawa : Canadian Institute for Historical Microreproductions, 1981.