Merrill: Lich. Exs.
George K. Merrill [1 - 275]

University of Michigan Herbarium
Catalog #: 116508
C. C. Plitt #s. n. 11 September 1909
Parmeliopsis placorodia (Ach.) Nyl.
United States, Maryland, Waterford

University of Vermont, Pringle Herbarium, North American lichens
Catalog #: UVMVT016456
C. C. Plitt #s.n. 11 September 1909
Parmeliopsis placorodia (Ach.) Nyl.
United States of America, Maryland, Howard [?], Waterford;

University of Colorado, Museum of Natural History
Catalog #: COLO-L-0019593
C.C. Plitt #L 78368 11 September 1909
Imshaugia placorodia (Ach.) S. F. Meyer
United States, Maryland, Waterford

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00026730
C.C. Plitt #s.n. 11 September 1909
Cetraria placorodia (Ach.) Tuck.
USA, Maryland, Waterford;

Shirley C. Tucker Herbarium at Louisiana State University
Catalog #: LSU00130748
F. W. Gray #s.n.
Cladonia verticillata (Hoffm.) Schaer.
United States, West Virginia, Pocahontas, Cass; Near Cass.

Arizona State University Lichen Herbarium
Catalog #: 510700
F.W. Gray s.n. 01 January 1925
Cladonia verticillata var. evoluta Th. Fr.
USA, West Virginia, Pocahontas, near Cass

University of Colorado, Museum of Natural History
Catalog #: COLO-L-0010385
Fred W. Gray #L 80399
Cladonia verticillata (Hoffm.) Schaer.
United States, West Virginia, near Cass

Duke University Herbarium
Catalog #: 48487
bc21a54b-fa34-11e2-a92b-005056000560
Gray, F., W. #s.n.
Cladonia verticillata (Hoffm.) Schaer.
United States, West Virginia, Pocahontas Co., Near Cass

University Herbarium, University of California, Berkeley
Catalog #: UC2005696
Rev. F. W. Gray #s.n.
Cladonia cervicornis subsp. verticillata (Hoffm.) Ahti
United States, West Virginia, Pocahontas, Near Cass.