Cummings, Williams & Seymour: Lich. Bor.-Amer.
Francis W. Pennell [1-280]

Oregon State University Herbarium - Lichens
Catalog #: 91598
ac0faa0a-2a67-41fb-9642-5ba855f1186c
H. Green s.n. 23 August 1993
Usnea angulata Hook. f. & Taylor
United States, Connecticut, Cornwell Bridge