7 literature references for Orthotrichum urnigerum Myrin, 1833:

Author: Ignatov, M. S. & O. M. Afonina (Editors)
Year: 1992
Title: Checklist of mosses of the former USSR
Source: Arctoa
Author: Grout
Year: 1927
Title:
Source: Bryologist
Author: Crosby, M. R. and others - REVISED
Year: 1999
Title: REVISED: accepted in a monograph, revision, or descriptive flora since 1963
Source: Checklist Mosses
Author: Lewinsky-Haapasaari, J.
Year: 1995
Title: Illustrierter Bestimmungsschlüssel zu den europäischen ~Orthotrichum~-Arten
Source: Meylania
Author: Myrin
Year: 1833
Title:
Source: Coroll. Fl. Upsal.
Author: Hinneri, S.
Year: 1976
Title: A revision of the moss genus ~Orthotrichum~ Hedw. for eastern Fennoscandia: taxonomy, distribution and ecology
Source: Ann. Univ. Turku., Ser. A2, Biol.-Geogr.-Geol.
Author: Grout, A. J.
Year: 1933-1940
Title:
Source: Moss Fl. N. Amer.