Drummond, Musci Amer.
Thomas Drummond

Academy of Natural Sciences of Drexel University
Catalog #: PH00085605
T. Drummond #s.n.
Didymodon glaucescens (Hedw.) Brid.
Canada, British Columbia, Rocky Mts.

University of Michigan Herbarium
Catalog #: 608078
[no data] #s. n.
Saelania glaucescens (Hedw.) Broth.
, Upon the shores of Lake Superior and near York Factory