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

Brown University - Algae
Catalog #: ABRU00003025
I. Holden s.n. 14 November 1897
Ectocarpus subcorymbosus Farlow ex Holden
United States, Connecticut, Bridgeport, CT

Field Museum of Natural History
Catalog #: C0519420F
I. Holden #s.n. 14 November 1897
Ectocarpus subcorymbosus Farlow ex Holden
United States, Connecticut, Fairfield, Bridgeport

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00223965
340f6bdb-fb27-49b2-9870-b4f2fa032693
I. Holden #s.n. 14 November 1897
Ectocarpus subcorymbosus Farlow ex Holden
United States, Connecticut, Bridgeport

Yale University Herbarium
Catalog #: YU.091497
Isaac Holden s.n. 14 November 1897
Ectocarpus subcorymbosus Farlow ex Holden
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University of Michigan
Catalog #: 635879
Isaac Holden #s.n. 14 November 1897
Hummia onusta (Kützing) J.Fiore
United States, Connecticut, Fairfield, Bridgeport

University of Michigan
Catalog #: 635885
Isaac Holden #s.n. 14 November 1897
Hummia onusta (Kützing) J.Fiore
United States, Connecticut, Fairfield, Bridgeport

Michigan State University Algae
Catalog #: MSC0183044
Isaac Holden #s.n. 14 November 1897
Hummia onusta (Kützing) J.Fiore
United States, Connecticut, Fairfield, Bridgeport

Miami University - Algae
Catalog #: 000186829
Isaac Holden #s.n. 14 November 1897
Ectocarpus subcorymbosis
United States, Connecticut, Fairfield, Bridgeport