Steere, Holmen & Mogensen, Bryophyta Arct. Exs.
Steere, W.C.; Holmen, K.A.; Mogensen, G.S. [51 - 100]

University of Michigan Herbarium
Catalog #: 559436
K. A. Holmen #s. n. 18 September 1956
Catoscopium nigritum (Hedw.) Brid.
Greenland, Egedesminde, Raeveø (Tupilak Island)

Field Museum of Natural History
Catalog #: C1069158F
3930720f-5958-4417-8ba3-4f5b5dd0200c
K. A. Holmen #s.n. 18 September 1956
Catoscopium nigritum (Hedw.) Brid.
Greenland, West Greenland: Egedesminde, Raveø (Tupilak Island)

University of Wisconsin - Madison
Catalog #: WIS-B-0004814
K.A. Holmen #s.n. 18 September 1956
Catoscopium nigritum (Hedw.) Brid.
Greenland, WEST GREENLAND: Egedesminde, Raeveø (Tupilak Island)

University of Colorado, Museum of Natural History Herbarium Bryophyte Collection
Catalog #: COLO-B-0010091
Kjeld A. Holmen #s.n. 18 September 1956
Catoscopium nigritum (Hedw.) Brid.
Greenland, West Greenland: Egedesminde, Raeveø (Tupilak Island)

Academy of Natural Sciences of Drexel University
Catalog #: PH00097368
W. C. Steere #s.n. 18 September 1956
Catoscopium nigritum (Hedw.) Brid.
Greenland, Egedesminde, Raevefi (Tupilak Island)