Accepted By and Published In:
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Merrill, G. L. 1992. Notes on North American Polytrichaceae: Polytrichastrum. Bryologist 95: 270–273.
Accepted By:
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Flora of North America Editorial Committee. 2007. Bryophytes: Mosses. 27: i–xxi, 1–713. In Fl. N. Amer.. Oxford University Press, New York.
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