Cummings, Williams & Seymour, Dec. N. Amer. Lich. [Wellesley (Massachusetts)]
Clara Eaton Cummings, Thomas Albert Williams & Arthur Bliss Seymour [151-360]
IndExs #826153814

University of Michigan Herbarium
Catalog #: 105770
84e6469c-fdc3-4a2e-b69f-f724a5b2d5d6
T. A. Williams #s. n.
Huilia crustulata (Ach.) Hertel
United States, Washington, D.C., no data, Takoma Park

University of Wisconsin - Madison
Catalog #: WIS-L-0087817
Thomas A. Williams #s. n.
Porpidia crustulata (Ach.) Hertel & Knoph
United States, District of Columbia, Takoma Park