Tilden, Amer. AlgaeTilden, J.E. [1-650]
Michigan State University Algae
A.P. Anderson #s.n. 17 August 1892
Gomphonema olivaceum (Hornemann) Kützing
United States, Upper Mississippi river
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Miami University - Algae
A.P. Anderson #s.n. 17 August 1892
Gomphonema olivaceum (Hornemann) Kützing
United States, Upper Mississippi river
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Michigan State University Algae
Conway MacMillan #s.n. 00 April 1895
Gomphonema olivaceum (Hornemann) Kützing
United States, Minnesota, Hennepin, Mississippi river, Minneapolis
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