Cummings & Seymour, Dec. N. Amer. Lich. [Wellesley (Massachusetts)]
Clara Eaton Cummings, T.A. Williams & Arthur Bliss Seymour [1-150]
IndExs #938157617

New York Botanical Garden
Catalog #: 4584633
2f0cccdb-42e4-4fe2-a8e2-411c415a1a3d
s.n.
Arthonia punctiformis Ach.

New York Botanical Garden
Catalog #: 4440121
d23bb6c1-aedc-4011-97b5-7807d367b392
s.n.
Arthonia punctiformis Ach.

University of Michigan Herbarium
Catalog #: 74963
05aaeee5-77d9-4073-941e-3b8581a344ae
T. A. Williams #s. n. 00 May 1898
Arthonia punctiformis Ach.
United States, Washington, D.C., no data, Takoma Park

Cornell University Plant Pathology Herbarium
Catalog #: CUP-L-0000177
Williams & Snell s.n. 00 May 1898
Arthonia punctiformis Ach.
USA, Washington, D.C., Takoma Park

Cornell University Plant Pathology Herbarium
Catalog #: CUP-L-0000173
Williams & Snell #s.n. 00 May 1898
Arthonia punctiformis Ach.
USA, Washington, D.C., Takoma Park