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194 or brownish patches, becoming black when old. It is, besides, an alpine or subalpine species, not yet found within our limits.

H. stellatum is a much more robust plant, and has entire leaves, and a dioicous inflorescence.

H. Sommerfeltii, ''Bryol. Europ. (H. polymorphism, Bryol. Brit.) approaches very closely to H. hispidulum;'' and, except the longer and narrower acumination of the leaf of the former, (which is hardly sufficient,) there appears to be no character to separate them.

TAB. 119.—.