The Parmelia perforata group
Subtitle: niche characteristics of chemical races, speciation by parallel evolution, and a new taxonomy
By: William Louis Culberson
Published: 1973
Language: eng
Number of pages: 29
Notes: Reprinted from The Bryologist, v. 70, no. 1, Spring 1973, p. 20-29.

Includes bibliographical references (p. 29).