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

Brown University - Algae
Catalog #: ABRU00005204
F. S. Collins s.n. 26 May 1900
Lithothamnion polymorphum f. papillatum Foslie
United States, Rhode Island, Newport; Ochre Point, Newport, RI

University of Michigan
Catalog #: 676532
F.S. Collins #s.n. 26 May 1900
Lithothamnion polymorphum f. papillatum Foslie
United States, Rhode Island, Newport, Ochre Point, Newport

Michigan State University Algae
Catalog #: MSC0184071
F.S. Collins #s.n. 26 May 1900
Phymatolithon purpureum (P.L.Crouan & H.M.Crouan) Woelkerling & L.M.Irvine
United States, Rhode Island, Newport, Ochre Point, Newport

University of Michigan
Catalog #: 737900
F.S. Collins #s.n. 26 May 1900
Lithothamnion polymorphum f. papillatum Foslie
United States, Rhode Island, Newport, Ochre Point, Newport

Miami University - Algae
Catalog #: 000210687
F.S. Collins #s.n. 26 May 1900
Phymatolithon purpureum (P.L.Crouan & H.M.Crouan) Woelkerling & L.M.Irvine
United States, Rhode Island, Newport, Ochre Point, Newport