These Web pages make available to the public a large portion of
Richard H. Zander's 1993 Genera of the Pottiaceae: Mosses of
Harsh Environments. Bull. Buffalo Sci. Nat. Sci. 32. Not presently
included are the cladograms, excluded and untreated taxa, updated
list of genera, species and infraspecific taxa, bibliography, glossary,
We do include the introduction, discussions of characters, techniques,
and evolution, keys to genera, and treatments of genera. Also available
are the 113 plates of illustrations by Patricia M. Eckel.
This Web site makes widely available a modern, significant exposition at
the genus level of a large, diverse and broadly distributed family of mosses
adapted in general to arid and otherwise difficult habitats.
We are grateful to the Buffalo Museum of Science for permission to create
an on line version of this work, funded by the U.S. National Science
Foundation Grant BSR 8314843.