Displaying 301 - 325 out of 757 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Synedra pulchella var. minutissima (W.Sm.) Grunow | J. E. Tilden s.n. | 15 Nov 1894 | United States of America | Minnesota | Hennepin Co. in small stream | — |
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| Synedra ulna (Nitzsch) Ehrenb. | J. E. Tilden s.n. | 24 Sep 1894 | United States of America | Minnesota | Hennepin Co. in stream | — |
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| Synedra ulna (Nitzsch) Ehrenb. | J. E. Tilden s.n. | 24 Sep 1894 | United States of America | Minnesota | Hennepin Co. in stream | — |
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| Oscillatoria brevis Kütz. ex Gomont | J. E. Tilden s.n. | 26 Nov 1894 | United States of America | Minnesota | Ramsey Co. growing on clods… | — |
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| Cladophora declinata Kütz. | J. E. Tilden s.n. | 03 Aug 1894 | United States of America | Minnesota | Hennepin Co. attached to stones… | — |
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| Navicula cuspidata (Kütz.) Kütz. | J. E. Tilden s.n. | 14 Nov 1894 | United States of America | Minnesota | Hennepin Co. on rocks in… | — |
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| Spirogyra rivulalris | J. E. Tilden s.n. | 09 Oct 1894 | United States of America | Minnesota | Hennepin Co. stone quarry | — |
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| Spirogyra rivularis var. minor Hansg. | J. E. Tilden s.n. | 09 Oct 1894 | United States of America | Minnesota | Hennepin Co. stone quarry | — |
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| Cladophora glomerata var. fasciculata Rabenh. | J. E. Tilden s.n. | 06 Jul 1894 | United States of America | Minnesota | Hennepin Co. stone quarry, clinging… | — |
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| Navicula cuspidata (Kütz.) Kütz. | J. E. Tilden s.n. | 14 Nov 1894 | United States of America | Minnesota | Hennepin Co. on rocks in… | — |
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| Oscillatoria numidica Gomont | J. E. Tilden s.n. | 23 Nov 1894 | United States of America | Minnesota | Hennepin Co. Greenhouse, in tanks… | — |
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| Cladophora fracta var. lacustris (Kütz.) Brand | J. E. Tilden s.n. | 23 Aug 1901 | United States of America | Minnesota | Saint Louis Co. Cascade Park,… | — |
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| Choaspis stictica (Sm.) Kuntze | D. Hone | J. E. Tilden s.n. | Nov 1908 | United States of America | Minnesota | Hennepin Co. Columbia Heights, City… | — |
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| Dysphinctium notabile (de Bary) Hansg. | J. E. Tilden s.n. | Jan 1906 | United States of America | Minnesota | University of Minnesota, in tank | — |
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| Cosmarium botrytis Menegh. | J. E. Tilden s.n. | Mar 1909 | United States of America | Minnesota | University of Minnesota, in tank | — |
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| Nitzschia | J. E. Tilden s.n. | 15 Nov 1894 | United States of America | Minnesota | Hennepin Co. in small stream | — |
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| Nitzschia sigmoidea (Nitzsch) W.Sm. | J. E. Tilden s.n. | 20 Aug 1901 | United States of America | Minnesota | Saint Louis Co. three miles… | — |
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| Fragilaria vaucheriae var. capitellata (Grunow) | J. E. Tilden s.n. | 29 Aug 1901 | United States of America | Minnesota | Lake Superior, opposite Fish Hatcheries,… | — |
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| Cyclotella operculata (C.Agardh) Bréb. | J. E. Tilden s.n. | 10 Aug 1901 | United States of America | Minnesota | Saint Louis Co. Lincoln Park,… | — |
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| Nitella confervacea (Bréb.) A.Braun ex Leonh. | J. E. Tilden s.n. | 15 Aug 1901 | United States of America | Minnesota | twelve miles from Duluth, east… | — |
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| Nitella confervacea (Bréb.) A.Braun ex Leonh. | J. E. Tilden s.n. | 15 Aug 1901 | United States of America | Minnesota | twelve miles from Duluth, east… | — | ||||
| Oedogonium crispum var. gracilescens Wittr. ex Hirn | J. E. Tilden s.n. | 12 Aug 1901 | United States of America | Minnesota | Saint Louis Co. Minnesota Point,… | — |
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| Oedogonium capilliforme var. australe Wittr. | J. E. Tilden s.n. | 12 Aug 1901 | United States of America | Minnesota | Saint Louis Co. Minnesota point,… | — |
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| Chaetophora pisiformis (Roth) C.Agardh | J. E. Tilden s.n. | 19 Aug 1901 | United States of America | Minnesota | Saint Louis Co. Fond du… | — |
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| Chaetophora pisiformis (Roth) C.Agardh | J. E. Tilden s.n. | 19 Aug 1901 | United States of America | Minnesota | Saint Louis Co. Fond du… | — |
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