Farlow Herbarium, Harvard University
-- LICHENS --
Identifying North American Lichens: A Guide to the Literature
Key to
Cladina
and
Cladonia
on the Queen Charlotte Islands
Preliminary key to
Lecanora
species likely to occur in New England
Lichens of Long Island, New York: Revised Nomenclature
How to identify a macrolichen
How to collect lichens
Links to other lichen sites
Harvard Herbaria Homepage
About the Farlow Herbarium
Friends of the Farlow