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

Brown University - Algae
Catalog #: ABRU00004767
C. Bullard s.n. 10 September 1912
Micrasterias papillifera Brébisson ex Ralfs
United States, New Hampshire, Carroll, Twin Mountain; Twin Mountain Station, NH

Yale University Herbarium
Catalog #: YU.095234
Charles Bullard s.n. 10 September 1912
Micrasterias papillifera Brébisson ex Ralfs
United States, New Hampshire, Carroll, Twin Mountain; Twin Mountain Station, NH

University of Michigan
Catalog #: 736351
Charles Bullard #s.n. 10 September 1912
Micrasterias papillifera Brébisson ex Ralfs
United States, New Hampshire, Carroll, Twin Mountain Station

University of Michigan
Catalog #: 736352
Charles Bullard #s.n. 10 September 1912
Micrasterias papillifera Brébisson ex Ralfs
United States, New Hampshire, Carroll, Twin Mountain Station

Michigan State University Algae
Catalog #: MSC0183464
Charles Bullard #s.n. 10 September 1912
Micrasterias papillifera Brébisson ex Ralfs
United States, New Hampshire, Carroll, Twin Mountain Station

Miami University - Algae
Catalog #: 000196614
Charles Bullard #s.n. 10 September 1912
Micrasterias papillifera Brébisson ex Ralfs
United States, New Hampshire, Carroll, Twin Mountain Station