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California Moss eFlora
|Jan 1 2013 ·|
Roellia is a monotypic genus that appears as a very large Bryum but its cells are among the largest of our local bryophytes. When one encounters a large and comose acrocarpous moss on forest litter, a quick look for the large cells will establish its identity. Many earlier works considered Roellia roellii merely to be a large Bryum (Bryum sandbergii). Now, Roellia has been transferred not only out of Bryum, but also out of the Bryaceae into the Mniaceae.
see key to Bryum Etc.
Roellia roellii (Brotherus ex Röll) Andrews in H. Crum
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