Collins, Holden & Setchell, Phycoth. Bor.-Amer.
Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]

Brown University
Catalog #: ABRU00003763
F. S. Collins s.n. 11 April 1903
Chlorococcum humicola (Nägeli) Rabenhorst
United States, Rhode Island, Newport, RI

Drexel University, Academy of Natural Sciences
Catalog #: PH00148230
F. S. Collins #s.n. 11 April 1903
Chlorococcum Meneghini, 1842
United States, Rhode Island, Newport

The New York Botanical Garden
Catalog #: 2106051
F. S. Collins #[s.n.] 11 April 1903
Chlorococcum humicola (Nägeli) Rabenh.
United States, Rhode Island, Newport, [No further locality data provided]

University of Michigan
Catalog #: 683792
F.S. Collins #s.n. 11 April 1903
Chlorococcum humicola (Nägeli) Rabenhorst
United States, Rhode Island, Newport, Newport

University of Michigan
Catalog #: 683794
F.S. Collins #s.n. 11 April 1903
Chlorococcum humicola (Nägeli) Rabenhorst
United States, Rhode Island, Newport, Newport

Michigan State University
Catalog #: MSC0181791
F.S. Collins #s.n. 11 April 1903
Chlorococcum infusionum (Schrank) Meneghini
United States, Rhode Island, Newport, Newport

Miami University
Catalog #: 000188046
F.S. Collins #s.n. 11 April 1903
Chlorococcum humicola (Nägeli) Rabenhorst
United States, Rhode Island, Newport, Newport

Yale University Herbarium
Catalog #: YU.092149
Frank Shipley Collins s.n. 11 April 1903
Chlorococcum humicola (Nägeli) Rabenhorst
United States of America, Rhode Island, Newport, Newport; Newport, RI