Sullivant & Lesquereux, Musci Bor.-Amer. Ed. 2
Charles L. Lesquereux [1 - 536]

Academy of Natural Sciences of Drexel University
Catalog #: PH00129416
#s.n.
Orthotrichum obtusifolium Brid.
USA, Pennsylvaniae et Novaeboracensis (Pennsylvania and New York)

University of Wisconsin - Madison
Catalog #: WIS-B-0017045
Sullivant #174
orthotrichum obtusifolium Brid.
United States, Pennsylvania, no locality info

University of Wisconsin - Madison
Catalog #: WIS-B-0017232
Unknown #s.n.
Orthotrichum obtusifolium Brid.
United States, Pennsylvania

University of Michigan Herbarium
Catalog #: 593072
[no data] #s. n.
Orthotrichum obtusifolium Brid.
USA, Pennsylvania, [no data].

Willard Sherman Turrell Herbarium, Miami University
Catalog #: 000251594
[Unspecified] #s.n.
Orthotrichum obtusifolium Brid.
United States, Montana, [No Loc]