Note
A key to the species of Chaetomorpha and Rhizoclonium found in New England is
presented along with a description and review of each species' ecology, distribution,
and taxonomic history. Chaetomorpha picquotiana is shown to be an earlier name
for C. atrovirens, and discussions concerning the generic placement of Chaetomorpha
cannabina and the separation of the genera Chaetomorpha and Rhizoclonium
are presented.