Displaying 1 - 50 out of 185 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Oscillatoria tenuis C.Agardh ex Gomont | W. J. V. Osterhout | N. L. Gardner s.n. | Jul 1905 | United States of America | California | Alameda Co. San Leandro Creek | — |
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| Prasiola gardneri Collins | W. J. V. Osterhout | N. L. Gardner s.n. | 16 Sep 1903 | United States of America | California | Alameda Co. floating in a… | type |
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| Cosmarium meneghinii Bréb. | W. J. V. Osterhout | N. L. Gardner s.n. | 24 Jun 1902 | United States of America | California | San Francisco Co. Mountain lake | — |
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| Mougeotia sphaerocarpa | W. J. V. Osterhout | N. L. Gardner s.n. | 06 Aug 1902 | United States of America | California | San Francisco Co. Mountain Lake,… | — |
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| Mougeotia sphaerocarpa | W. J. V. Osterhout | N. L. Gardner s.n. | 06 Aug 1902 | United States of America | California | San Francisco Co. Mountain Lake,… | — |
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| Mougeotia sphaerocarpa | W. J. V. Osterhout | N. L. Gardner s.n. | 06 Aug 1902 | United States of America | California | San Francisco Co. Mountain Lake,… | — |
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| Netrium digitus | W. J. V. Osterhout | N. L. Gardner s.n. | 06 Aug 1903 | United States of America | California | San Francisco Co. Mountain Lake,… | — |
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| Nitella clavata Kütz. | W. J. V. Osterhout | N. L. Gardner s.n. | 04 Aug 1906 | United States of America | California | Marin Co. Lake Lagunita | — |
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| Nitella clavata Kütz. | W. J. V. Osterhout | N. L. Gardner s.n. | 04 Aug 1906 | United States of America | California | Marin Co. Lake Lagunita | — |
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| Nitella morongii Allen | W. A. Setchell | W. J. V. Osterhout 1195 | 15 Jul 1893 | United States of America | Massachusetts | Barnstable Co. in pool near… | — |
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| Gloeocystis fenestralis Kütz. | W. J. V. Osterhout s.n. | 01 Jul 1895 | United States of America | Rhode Island | Providence Co. growing in a… | — |
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| Gloeocystis fenestralis Kütz. | W. J. V. Osterhout s.n. | 01 Jul 1895 | United States of America | Rhode Island | Providence Co. growing in a… | — |
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| Stichococcus bacillaris Nägeli | W. J. V. Osterhout s.n. | 08 Jun 1902 | United States of America | California | Alameda Co. in shade, on… | — |
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| Stichococcus bacillaris Nägeli | W. J. V. Osterhout s.n. | 08 Jun 1902 | United States of America | California | Alameda Co. in shade, on… | — |
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| Scenedesmus bijugatus var. alternans (Reinsch) Hansg. | W. J. V. Osterhout | N. L. Gardner s.n. | 18 Jun 1902 | United States of America | California | San Francisco Co. Mountain Lake | — |
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| Ulothrix implexa (Kütz.) Kütz. | W. J. V. Osterhout | N. L. Gardner s.n. | 20 Sep 1903 | United States of America | California | on a steamer plying between… | — |
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| Ulothrix implexa (Kütz.) Kütz. | W. J. V. Osterhout | N. L. Gardner s.n. | 20 Sep 1903 | United States of America | California | on a steamer plying between… | — |
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| Agardhiella tenera (J.Agardh) F.Schmitz | W. A. Setchell | W. J. V. Osterhout 20 | 1895 | United States of America | Massachusetts | Barnstable Co. Woods Hole | — |
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| Agardhiella tenera (J.Agardh) F.Schmitz | W. A. Setchell | W. J. V. Osterhout 20 | 1895 | United States of America | Massachusetts | Barnstable Co. | — |
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| Polysiphonia elongata (Huds.) Harv. | W. J. V. Osterhout s.n. | 22 Aug 1892 | United States of America | Massachusetts | Dukes Co. Martha's Vineyard, Gay… | — |
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| Vaucheria hamata (Vaucher) DC. | W. J. V. Osterhout s.n. | 10 May 1894 | United States of America | Rhode Island | Morgan's Mills | — |
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| Vaucheria undulata C. C. Jao | W. J. V. Osterhout s.n. | 10 May 1894 | United States of America | Rhode Island | Morgan's Mills | — |
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| Zygnema cruciatum f. leiosporum Collins | W. J. V. Osterhout s.n. | 03 Nov 1907 | United States of America | California | Alameda Co. pool near Lake… | type |
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| Zygnema cruciatum f. leiosporum Collins | W. J. V. Osterhout s.n. | 03 Nov 1907 | United States of America | California | Alameda Co. pool near Lake… | type |
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| Zygnema cruciatum f. leiosporum Collins | W. J. V. Osterhout s.n. | 03 Nov 1907 | United States of America | California | Alameda Co. pool near Lake… | type |
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| Palmella | W. J. V. Osterhout 567 | 24 Oct 1906 | United States of America | California | Lake Temescal near Berkeley | — |
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| Rhaphidium polymorphum Fresen. | W. J. V. Osterhout | N. L. Gardner s.n. | 18 Jun 1902 | United States of America | California | San Francisco Co. Mountain Lake | — |
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| Chara schweinitzii (A.Braun) Kütz. | W. J. V. Osterhout | N. L. Gardner s.n. | 04 Aug 1906 | United States of America | California | Marin Co. Lake Lagunita | — |
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| Chara schweinitzii (A.Braun) Kütz. | W. J. V. Osterhout | N. L. Gardner s.n. | 04 Aug 1906 | United States of America | California | Marin Co. Lake Lagunita | — |
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| Ulothrix subtilis Kütz. | W. J. V. Osterhout s.n. | 02 Jun 1902 | United States of America | California | Farralone Islands, in fresh water… | — |
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| Ulothrix subtilis Kütz. | W. J. V. Osterhout s.n. | 02 Jun 1902 | United States of America | California | Farralone Islands, in fresh water… | — |
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| Oedogonium boscii Wittr. ex Hirn | W. J. V. Osterhout | N. L. Gardner 1271 | Jan 1904 | United States of America | California | Alameda Co. in a small… | — |
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| Oedogonium boscii Wittr. ex Hirn | W. J. V. Osterhout | N. L. Gardner 1271 | Jan 1904 | United States of America | California | Alameda Co. in a small… | — |
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| Trentepohlia odorata (F.H.Wigg.) Wittr. | W. J. V. Osterhout s.n. | 20 Sep 1903 | United States of America | California | Shasta Co. Hedge Creek Falls | — |
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| Odonthalia floccosa (Esper) Falkenb. | W. J. V. Osterhout s.n. | — | United States of America | California | San Francisco Co. Farallon Islands | — |
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| Prasiola crispa (Lightf.) Kütz. | W. J. V. Osterhout s.n. | 02 Jun 1902 | United States of America | California | On a cliff about 30… | — |
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| Rhodomela larix (W.B.Turner) C.Agardh | W. J. V. Osterhout s.n. | — | United States of America | California | Farallon Island | — |
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| Hormotila mucigena Borzi | W. J. V. Osterhout | N. L. Gardner s.n. | Jan 1904 | United States of America | California | In an old reservoir, Hayward's,… | — |
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| Hormotila mucigena Borzi | W. J. V. Osterhout | N. L. Gardner s.n. | Sep 1904 | United States of America | California | In an old reservoir, Hayward's,… | — |
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| Callithamnion pikeanum Harv. | W. J. V. Osterhout s.n. | Jul 1914 | United States of America | California | Monterey Co. Pacific Grove | — |
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| Spirogyra longata (Vaucher) Kütz. | W. J. V. Osterhout s.n. | 07 May 1895 | United States of America | Rhode Island | Providence Co. Knightsville | — |
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| Oedogonium undulatum A.Braun ex Hirn | W. J. V. Osterhout s.n. | 19 Jul 1893 | United States of America | Massachusetts | Martha's Vineyard, in a pool… | — |
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| Oedogonium undulatum A.Braun ex Hirn | W. J. V. Osterhout s.n. | 19 Jul 1893 | United States of America | Massachusetts | Martha's Vineyard, in a pool… | — |
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| Oedogonium undulatum A.Braun ex Hirn | W. J. V. Osterhout s.n. | 19 Jul 1893 | United States of America | Massachusetts | Martha's Vineyard, in a pool… | — |
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| Ulva intestinalis L. | W. J. V. Osterhout | N. L. Gardner s.n. | s.d. | United States of America | California | San Francisco Co. forming dense… | — |
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| Prasiola crispa (Lightf.) Kütz. | W. J. V. Osterhout s.n. | 02 Jun 1902 | United States of America | California | San Francisco Co. Farallone Islands,… | — |
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| Trentepohlia aurea (L.) Mart. | W. J. V. Osterhout s.n. | 21 Jul 1902 | United States of America | California | San Francisco Co. Farallone Islands,… | — |
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| Trentepohlia aurea (L.) Mart. | W. J. V. Osterhout s.n. | 21 Jul 1902 | United States of America | California | San Francisco Co. Farallone Islands,… | — |
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| Trentepohlia aurea (L.) Mart. | W. J. V. Osterhout s.n. | 21 Jul 1902 | United States of America | California | San Francisco Co. Farallone Islands,… | — |
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| Draparnaldia plumosa (Vaucher) C.Agardh | W. J. V. Osterhout | N. L. Gardner s.n. | 20 Jan 1904 | United States of America | California | Alameda Co. on stones in… | — |
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