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

Brown University - Algae
Catalog #: ABRU00003263
I. Holden s.n. 10 September 1892
Conferva bombycina C.Agardh
United States, Connecticut, Bridgeport, CT

Miami University - Algae
Catalog #: 000187164
I. Holden #s.n. 10 September 1892
Conferva bombycina C.Agardh
United States, Connecticut, Fairfield, Bridgeport

Yale University Herbarium
Catalog #: YU.091704
Isaac Holden s.n. 10 September 1892
Conferva bombycina C.Agardh
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University of Michigan
Catalog #: 736983
Isaac Holden #s.n. 10 September 1892
Tribonema bombycina (C.Agardh) Derbès & Solier
United States, Connecticut, Fairfield, Bridgeport

University of Michigan
Catalog #: 736995
Isaac Holden #s.n. 10 September 1892
Tribonema bombycina (C.Agardh) Derbès & Solier
United States, Connecticut, Fairfield, Bridgeport

Michigan State University Algae
Catalog #: MSC0182154
Isaac Holden #s.n. 10 September 1892
Conferva bombycina f. minor Wille
United States, Connecticut, Fairfield, Bridgeport