Drummond, Musci Amer.
Thomas Drummond
IndExs #905706240

Field Museum of Natural History
Catalog #: C1056221F
98ee9dfa-2045-469f-82d6-8b11e80b699b
s.n.
Didymodon trifarius (Hedw.) Röhl.
Canada

University of Michigan Herbarium
Catalog #: 569943
bc697253-6e1c-4823-a4aa-8c5382dc48da
no data #s. n.
Didymodon tophaceus (Brid.) Lisa
, About the Falls of Niagara