Merrill, Lich. Exs. Ser. II [?Rockland (Maine)]
George K. Merrill [1-150]
IndExs #434087812

Yale University Herbarium, Peabody Museum of Natural History
Catalog #: YU.240589
urn:uuid:91727A0B-7731-4BC9-9777-54B69F5C5432
G. K. Merrill s.n.
Physcia grisea (Lam.) Zahlbr.
United States, Maine, Knox, Rockland; Rockland

University of Michigan Herbarium
Catalog #: 122261
c3a017f5-6a18-4725-a0f8-44569d3297c3
G. K. Merrill #s. n.
Physconia detersa (Nyl.) Poelt
United States, Maine, no data, Rockland

Field Museum of Natural History
Catalog #: C1014267F
179316c2-529f-4403-9faa-c90911ab52d9
G. K. Merrill #s.n.
Physconia leucoleiptes (Tuck.) Essl.
U.S.A., Maine, Knox, Rockland

University of Florida Herbarium - Lichens
Catalog #: FLAS L9997
G.K. Merrill s.n.
Physcia pulverulenta (Schreb.) Hampe ex Fürnr.
United States, Maine, Knox, Rockland

University of Wisconsin - Madison
Catalog #: WIS-L-0085904
G.K. Merrill #s.n.
Physconia detersa (Nyl.) Poelt
United States, Maine, Rockland

Duke University Herbarium Lichen Collection
Catalog #: 132326
bc21c138-fa34-11e2-a92b-005056000560
Merrill, George, K. #s.n.
Physconia leucoleiptes (Tuck.) Essl.
United States, Maine, Knox Co., Rockland