Amphidium is a genus of mosses belonging to the monotypic family Amphidiaceae. It has previously been placed in families Orthotrichaceae and Rhabdoweisiaceae.
The genus has a cosmopolitan distribution.
Species:
Amphidium asiaticum Sim-Sim, Afonina & M. Stech Amphidium brevifolium Broth. Amphidium californicum (Hampe ex Müll. Hal.) Broth. Amphidium clastophyllum Cardot Amphidium curvipes (Müll. Hal.) Broth. Amphidium lapponicum (Hedw.) Schimp. Amphidium letestui Thér. & P. de la Varde Amphidium mougeotii (Bruch & Schimp.) Schimp. Amphidium papillosum E.B. Bartram Amphidium remotidens (Müll. Hal.) Broth. Amphidium tortuosum (Hornsch.) Cufod.
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