Collins, Holden & Setchell, Phycoth. Bor.-Amer.Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]
Yale University Herbarium
Miss S. P. Nichols s.n.
Pithophora kewensis Wittrock
United States, Ohio, Oberlin; Oberlin, OH
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Brown University - Algae
S. P. Nichols s.n.
Pithophora kewensis Wittrock
United States, Ohio, Oberlin, OH
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Field Museum of Natural History
S.P. Nichols s.n. 00 October 1909
Pithophora oedogonia (Montagne) Wittrock
United States, Ohio, Lorain, In small pond in pasture, Oberlin
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University of Michigan
S.P. Nichols #s.n. 00 October 1909
Pithophora kewensis Wittrock
United States, Ohio, Lake, Oberlin
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University of Michigan
S.P. Nichols #s.n. 00 October 1909
Pithophora kewensis Wittrock
United States, Ohio, Lake, Oberlin
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Michigan State University Algae
S.P. Nichols #s.n. 00 October 1909
Pithophora roettleri (Roth) Wittrock
United States, Ohio, Lake, Oberlin
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Miami University - Algae
S.P. Nichols #s.n. 00 October 1909
Pithophora roettleri (Roth) Wittrock
United States, Ohio, Lake, Oberlin
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