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

Brown University - Algae
Catalog #: ABRU00002714
W. A. Setchell s.n. 13 September 1892
Hapalosiphon fontinalis var. tenuissimus (Grunow) Collins, Holden, & Setchell
United States, Connecticut, Mill Pond, Lantern Hill, Ledyard, CT

Michigan State University Algae
Catalog #: MSC0182986
W.A. Setchell #s.n. 13 September 1892
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, Connecticut, New London, Mill Pond, Lantern Hill, Ledyard

Miami University - Algae
Catalog #: 000186615
W.A. Setchell #s.n. 13 September 1892
Hapalosiphon fontinalis var. tenuissimus (Grunow) Collins, Holden, & Setchell
United States, Connecticut, New London, Mill Pond, Lantern Hill, Ledyard

Yale University Herbarium
Catalog #: YU.091292
William Albert Setchell s.n. 13 September 1892
Hapalosiphon fontinalis var. tenuissimus (Grunow) Collins, Holden, & Setchell
United States, Connecticut, Ledyard; Mill Pond, Lantern Hill, Ledyard, CT