Anonymous, Pl. Exs. Grayan.Anonymous [1 - 1500 or more]
Indiana University Herbarium, Deam Herbarium
E. C. Ogden #1688 02 August 1937
Potamogeton gramineus L.
United States, Michigan, Mackinac, About 10 meters from Lake Michigan, St. Ignace
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Intermountain Herbarium (Vasc. & Algae)
E.C. Ogden #1683 02 August 1937
Potamogeton gramineus L.
United States, Michigan, Mackinac, About 10 meters from Lake Michigan, St. Ignace
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