Atrichum undulatum (Hedw.) P. Beauv. [ Polytrichum undulatum Hedw.]
      
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6 1319904 Atrichum undulatum (Hedw.) P. Beauv. [80 1470969 Polytrichum undulatum Hedw.] Polytrichaceae
Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur., vol. 12 (Vierter Band): t. 13 (1825) [T. Wild]