Displaying 1 - 25 out of 291 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Cirsium lappaceum var. ramosum Petr. | F. Petrak s.n. | Jul 1912-1915 | Czech Republic | — | E seminibus a cl. G.… | possible type |
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| Cirsium sychnosanthum Petr. | F. Petrak s.n. | Jun 1914-Jul 1914 | Czech Republic | — | E seminibus plantae loco indicato… | possible type |
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| Penstemon rydbergii A.Nelson var. rydbergii | F. Petrak 50006 | 08 Aug 1950 | United States of America | Wyoming | Highway 150, above University Summer… | — |
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| Solanum triflorum Nutt. | F. Petrak 50158 | 03 Aug 1950 | — | — | [Illegible] - Tal bis [illegible];… | — |
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| Solanum dulcamara L. | F. Petrak s.n. | Jul 1911 | Czech Republic | — | Cres??: M. Weisskirchen Wiesengräben bei… | — | ||||
| Solanum nigrum L. | F. Petrak 676 | Aug 1911 | Czech Republic | — | Mähr Weisskirchen: Schuttplötze an der… | — | ||||
| Dasyscyphus willkommii (Hartig) Rehm | F. Petrak s.n. | V. 1922 | Czech Republic | — | West Beskiden | — |
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| Trichopeziza brevipila (Roberge ex Desm.) Sacc. | F. Petrak s.n. | V. 1924 | Czech Republic | — | Moravia, Weisskirchen, | — |
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| Arnica cordifolia Hook. | F. Petrak 50129 | Aug. 8 .950 | United States of America | Wyoming | Albany Co. Nash Fork Creek,… | — |
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| Artemisia longifolia Nutt. | F. Petrak 50103 | 04 Aug 1950 | United States of America | South Dakota | Jackson Co. Badlands National Park,… | — |
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| Macrodiplodiopsis desmazieri (Mont.) Petr. | F. Petrak s.n. | Oct 1940 | Czech Republic | — | MoraviaMährisch-Weißkirchen, Parkanlagen | — |
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| Cirsium altissimum (L.) Spreng. | F. Petrak 105 | 27. IX.,2.X. 1913 | United States of America | Missouri | Jasper Co. Webb City | — |
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| Cirsium brevistylum Cronquist | F. Petrak 46 | 27 May 1911 | United States of America | California | San Bernardino Co. | — |
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| Erigeron caespitosus Nutt. | F. Petrak 50030 | 09 Aug 1950 | United States of America | Wyoming | Albany Co. shore of North… | — |
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| Erigeron divergens var. divergens | F. Petrak 50086 | 04 Aug 1950 | United States of America | Wyoming | Goshen Co. [illegible] Lusk and… | — |
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| Craterellus cornucopioides (L.) Pers. | F. Petrak s.n. | Aug 1922 | — | — | — |
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| Cylindrobasidium evolvens (Fr.) Jülich | F. Petrak 212 | Sep 1923 | — | — | — |
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| Dendrothele acerina (Pers.) P.A.Lemke | F. Petrak s.n. | Oct 1924 | Czech Republic | — | Moravia, M. Weisskirchen | — |
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| Peniophora mutata (Peck) Bres. | F. Petrak s.n. | Sep 1928 | Czech Republic | — | M.-Weißkirchen: Podhorn. | — |
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| Peniophora sanguinea (Fr.) Höhn. & Litsch. | F. Petrak s.n. | Aug 1933 | — | — | — |
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| Trametes gibbosa (Pers.) Fr. | F. Petrak 473 | Sep 1925 | — | — | — |
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| Trametes suaveolens (L.:Fr.) Fr. | F. Petrak 273 | Sep 1923 | — | — | — |
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| Stereum sanguinolentum (Alb. & Schwein.:Fr.) Fr. | F. Petrak 270 | Aug 1923 | — | — | [Illegible precise loc.] | — |
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| Solidago missouriensis Nutt. | F. Petrak 50159 | 13 Aug 1950 | United States of America | South Dakota | Custer Co. Near Sylvan Lake;… | — |
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| Solidago ptarmicoides (Nees) B.Boivin | F. Petrak 5011 | 15 Aug 1950 | United States of America | South Dakota | Brown Co. Hill tops, near… | — |
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