Anonymous, Pl. Exs. Grayan.
Anonymous [1 - 1500 or more]

University of Wisconsin-Madison, Wisconsin State Herbarium
Catalog #: v0413269WIS
668c8afa-caef-43f7-8b09-48bd1a7aac84
Fernald, M.L. #s.n. 06 September 1909
Wolffia columbiana H.Karst.
United States, Connecticut, Litchfield, Slough near Dutcher's Bridge, Salisbury

Intermountain Herbarium (Vasc. & Algae)
Catalog #: UTC00002992
M.L. Fernald #s.n. 06 September 1909
Wolffia columbiana Karst.
United States, Connecticut, Litchfield, Near Dutcher's Bridge, Salisbury.

Indiana University Herbarium, Deam Herbarium
Catalog #: IND-0008830
Merritt L. Fernald #s.n. 06 September 1909
Wolffia columbiana Karst.
United States, Connecticut, Litchfield, near Dutcher's Bridge, Salisbury