Atrichum (Family Polytrichaceae) Atrichum (Family Polytrichaceae)147–155Smith Merrill, G. L. and Ireland, Robert Root. 2007. "Atrichum (Family Polytrichaceae)." In Flora of North America, Vol. 27 - Bryophytes: Mosses, Part 1. Zander, R. H., editor. 147–155.More...ID: 22087Type: chapterKeywords: NH-Botany; NMNH