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

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00234471
c52a7c56-6083-4877-ac09-d7b21a0674b8
F. S. Collins #s.n. 21 September 1890
Hapalosiphon pumilus Kirchner ex Bornet & Flahault

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00234469
47307bb5-90e6-4f44-85b0-f0fe686d3a89
W. A. Setchell #s.n. 13 September 1892
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, Connecticut, Ledyard; Mill Pond, Lantern Hill, Ledyard