BRODO, IRWIN M. Canadian Museum of Nature, P.O. Box 3443 Station 'D', Ottawa, Ontario, Canada, K1P 6P4. - Patterns of distribution for North American lichens.
North American lichens display recurring patterns of distribution that
can be named, classified and analyzed. Past attempts at such
classification systems have been used in various publications. A new
system, expanding on previous works, was developed in the preparation
of "Lichens of North America," a new reference work on the
lichen flora of the continent scheduled to appear in the autumn of
2001. Interesting patterns and recurring disjunctions seen in lichens
are relevant in discussions of North American phytogeography.
Key words: distribution, lichens, phytogeography