Displaying 51 - 75 out of 158 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Nitzschia sigma (Kütz.) W.Sm. | P. G. Richter s.n. | Jul 1875 | Germany | — | Kötzschau bei Leipzig. | — |
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| Nitzschiella acicularis (Kütz.) Rabenh. | P. G. Richter s.n. | Jun 1969 | Germany | — | Berneck im Fichtelgebirge, aus der… | — |
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| Nitzschiella acicularis (Kütz.) Rabenh. | P. G. Richter s.n. | May 1877 | Germany | — | Roitzsch um Wurzen bei Leipzig. | — |
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| Porphyridium wittrockii P.G.Richt. | P. G. Richter s.n. | 29 Nov 1881 | Germany | — | Germaniæ ad parietes caldarii in… | isotype | ||||
| Rhaphidium minutum Naeg. | P. G. Richter s.n. | 17 Jun 1880 | Germany | — | Germaniæ in aquario meo | — | ||||
| Gloeocystis fenestralis Kütz. | P. G. Richter s.n. | 19 Nov 1881 | Germany | — | Germaniæ ad vitra fenestrarum caldarii… | — | ||||
| Cosmarium truncatum (Bréb.) Naeg. | P. G. Richter s.n. | 29 Jul 1880 | Germany | — | Germaniæ in stagno turfoso ad… | — | ||||
| Closterium angustatum Kütz. ex Ralfs | P. G. Richter s.n. | 03 Aug 1880 | Germany | — | Germanæi in fossa turfosa prope… | — | ||||
| Chlamydomonas communis J.Snow | P. G. Richter s.n. | 07 Aug 1882 | Germany | — | Germaniæ in cubiculo meo in… | — |
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| Chlamydomonas globulosa Perty | P. G. Richter s.n. | 08 May 1881 | Germany | — | Germaniæ in palude ad Anger… | — |
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| Protococcus cinnamomeus Kütz. | P. G. Richter s.n. | 12 Oct 1882 | Germany | — | Germaniæ in parietibus caldariorum ad… | — |
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| Gloeocystis vesiculosa Nägeli | P. G. Richter s.n. | 10 Aug 1882 | Germany | — | Germaniæ in muscis ad Wünschendorf… | — |
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| Cosmarium meneghinii Bréb. | P. G. Richter s.n. | 29 May 1881 | Germany | — | Germaniæ in rupibus humectis cum… | — |
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| Rhizoclonium hieroglyphicum (C.Agardh) Kütz. | P. G. Richter s.n. | 12 Apr 1882 | Germany | — | Germaniæ parietes caldarii in Anger… | — |
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| Gloeocystis rupestris Rabenh. | P. G. Richter s.n. | s.d. | Germany | — | Germaniæ in montibus arenosis ad… | — |
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| Cosmarium anceps P.Lundell | P. G. Richter s.n. | 11 Apr 1882 | Germany | — | Germaniæ ad parietes caldarii in… | — |
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| Rhizoclonium hieroglyphicum (C.Agardh) Kütz. | P. G. Richter s.n. | 12 Apr 1882 | Germany | — | Germaniæ parietes caldarii in Anger… | — |
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| Euastrum rostratum | P. G. Richter s.n. | April 1867 | Germany | — | Leipzig, aus der Aue bei… | — |
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| Prasiola parietina (Vaucher) Wille | P. G. Richter s.n. | Apr 1882 | Germany | — | Leipzig, an Planken | — |
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| Euastrum pinnatum | P. G. Richter s.n. | Easter 1866 | Germany | — | Leipzig, Moorwiefe um Groszbothen bei… | — |
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| Cosmarium latum | P. G. Richter s.n. | Sep 1867 | Germany | — | Leipzig. aus der Aue bei… | — |
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| Cosmarium angulosum Bréb. | P. G. Richter s.n. | Juli 1866 | Germany | — | Leipzig. aus dem Steinbruch bei… | — |
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| Spirogyra grevilleana (Hassall) Kütz. | P. G. Richter s.n. | Apr 1883 | Germany | — | Leipzig. Paunsdorf | — |
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| Closterium ralfsii Bréb. ex Ralfs | P. G. Richter s.n. | s.d. | Germany | — | Leipzig. Abtnaundorf | — |
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| Vaucheria geminata (Vaucher) DC. | P. G. Richter s.n. | Apr 1879 | Germany | — | Leipzig. Saline Durrenberg | — |
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