The Polytrichopsida is a class of mosses containing two orders.[1] Members of this class tend to be larger than other mosses with a thickened central stem. The leaves have a midrib that bears lamellae on the upper surface. Species in this group are dioicous.


1. Buck, William R. & Bernard Goffinet. 2000. "Morphology and classification of mosses", pages 71-123 in A. Jonathan Shaw & Bernard Goffinet (Eds.), Bryophyte Biology. (Cambridge: Cambridge University Press). ISBN 0-521-66097-1.


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