Crum, Howard Herbarium, University of Michigan, Ann Arbor, Michigan.
Last reviewed:October 2019
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A class of the plant division Bryophyta, containing plants commonly called granite mosses. The class consists of one order and two families, the Andreaeobryaceae and the Andreaeaceae. The large tapered foot and short, massive seta of the Andreaeobryaceae show possible linkage to the Bryopsida, but the differences seem more fundamental and more significant than the similarities.
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