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

Brown University - Algae
Catalog #: ABRU00003327
I. Holden s.n.
Dictyosiphon foeniculaceus var. americanus F.S.Collins
United States, Connecticut, Bridgeport, CT

Field Museum of Natural History
Catalog #: C0518503F
I. Holden #s.n. 00 April 1891
Dictyosiphon foeniculaceus var. americanus F.S.Collins
United States, Connecticut, Fairfield, Bridgeport

Yale University Herbarium
Catalog #: YU.091757
Isaac Holden s.n. 00 April 1891
Dictyosiphon foeniculaceus var. americanus F.S.Collins
United States, Connecticut, Fairfield, Bridgeport; Bridgeport, CT

University of Michigan
Catalog #: 633316
Isaac Holden #s.n. 00 April 1891
Dictyosiphon foeniculaceus var. americanus F.S.Collins,
United States, Connecticut, Bridgeport

Michigan State University Algae
Catalog #: MSC0182443
Isaac Holden #s.n. 00 April 1891
Dictyosiphon foeniculaceus var. americanus F.S.Collins
United States, Connecticut, Fairfield, Bridgeport

Miami University - Algae
Catalog #: 000187277
Isaac Holden #s.n. 00 April 1891
Dictyosiphon foeniculaceus var. americanus F.S.Collins
United States, Connecticut, Bridgeport