Displaying 176 - 225 out of 291 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Gayophytum lasiospermum Greene | F. Petrak 50205 | 04 Aug 1950 | United States of America | Wyoming | Hwy. 85, between Lusk and… | — |
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| Galium boreale L. | F. Petrak 50088 | 04 Aug 1950 | United States of America | South Dakota | Pennington Co. Black Hills | — |
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| Mitella pentandra Hook. | F. Petrak 50038 | 11 Aug 1950 | United States of America | Wyoming | Albany Co. along the shore… | — |
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| Oxypolis fendleri (A.Gray) A.Heller | F. Petrak 50066 | 10 Aug 1950 | United States of America | Wyoming | Albany Co. Wet shore of… | — |
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| Ipomoea leptophylla Torr. | F. Petrak 50249 | 13 Aug 1950 | United States of America | South Dakota | Fall River Co. roadside, Hyw… | — |
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| Verbena bracteata Lag. & Rodr. | F. Petrak 50081 | 04 Aug 1950 | United States of America | Wyoming | Goshen Co. Roadside, Hwy 85,… | — |
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| Mentzelia nuda (Pursh) Torr. & A.Gray | F. Petrak 50155 | 04 Aug 1950 | United States of America | Wyoming | Weston Co. roadside, Hwy 85,… | — |
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| Mentzelia sinuata (Rydb.) R.J.Hill | F. Petrak 50154 | 06 Aug 1950 | United States of America | Wyoming | roadside Hwy, between Hermosa and… | — |
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| Androsace septentrionalis L. | F. Petrak 50190 | 08 Aug 1950 | United States of America | Wyoming | Albany Co. near Brooklyn Lake,… | — |
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| Geranium richardsonii Fisch. & Trautv. | F. Petrak 50044 | 11 Aug 1950 | United States of America | Wyoming | Albany Co. University Summer Camp,… | — |
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| Geranium viscosissimum Fisch. & C.A.Mey. | F. Petrak 50208 | 05 Aug 1950 | United States of America | South Dakota | Pennington Co. roadside, Hwy 16,… | — |
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| Campanula rotundifolia L. | F. Petrak 50191 | 08 Aug 1950 | United States of America | Wyoming | Albany Co. University Summer Camp,… | — |
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| Platanthera dilatata (Pursh) Lindl. ex L.C.Beck | F. Petrak 50180 | 09 Aug 1950 | United States of America | Wyoming | At Brooklyn Lake, Medicine Bow… | — |
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| Diaporthe fallaciosa Nitschke | F. Petrak 2725 | — | Spain | — | Galicia: prope Stanislau | — |
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| Phyllactinia guttata (Wallr.:Fr.) Lév. | F. Petrak s.n. | Sep 1923 | — | — | Berg Cale bei Hoetin [?] | — |
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| Diaporthe crataegi Fuckel | F. Petrak 2410 | — | Czech Republic | — | Moravia: Welka prope Mahrisch-Weisskirchen | — |
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| Didymosphaeria cupula Ellis | F. Petrak s.n. | May 1950 | United States of America | Maryland | Nordamerika, Beltsville | — |
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| Didymosphaeria cupula Ellis | F. Petrak s.n. | May 1950 | United States of America | Maryland | Nordamerika, Beltsville | — |
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| Biscogniauxia atropunctata (Schwein.:Fr.) Pouzar | F. Petrak s.n. | May 1950 | United States of America | Maryland | Beltsville. | — |
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| Biscogniauxia atropunctata (Schwein.:Fr.) Pouzar | F. Petrak s.n. | May 1950 | United States of America | Maryland | Beltsville. | — |
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| Eutypella fraxinicola Ellis & Everh. | F. Petrak s.n. | 17 May 1950 | United States of America | Maryland | Beltsville. | — |
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| Eutypella juglandicola (Schwein.) Ellis & Everh. | F. Petrak s.n. | 17 May 1950 | United States of America | Maryland | Beltsville. | — |
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| Lophodermium pinicolum Tehon | F. Petrak s.n. | Oct 1950 | United States of America | Maryland | Wälder bei [woods at] Beltsville | — |
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| Lophodermium pinastri (Schrad.:Fr.) Chev. | F. Petrak s.n. | Oct 1950 | United States of America | Maryland | Wälder bei [woods at] Beltsville | — |
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| Guignardia magnoliae (Schwein.) J.H.Mill. | F. Petrak s.n. | May 1950 | United States of America | Maryland | Prince George's Co. | — |
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| Guignardia magnoliae (Schwein.) J.H.Mill. | F. Petrak s.n. | May 1950 | United States of America | Maryland | Prince George's Co. | — |
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| Ophiobolus fulgidus (Cooke & F.Peck) Sacc. | F. Petrak s.n. | Jul 1950 | United States of America | Maryland | Prince George's Co. | — |
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| Ophiobolus fulgidus (Cooke & F.Peck) Sacc. | F. Petrak s.n. | Jul 1950 | United States of America | Maryland | Prince George's Co. | — |
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| Diaporthe decorticans (Lib.) Sacc. & Roum. | F. Petrak 3901 | Oct 1955 | Austria | Lower Austria | Osterreich: Niederosterreich, Donau-Auen bei Tulln | — |
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| Diaporthe decorticans (Lib.) Sacc. & Roum. | F. Petrak 3901 | Oct 1955 | Austria | Lower Austria | Osterreich: Niederosterreich, Donau-Auen bei Tulln | — |
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| Cryptodiaporthe liquidambaris Petr. | F. Petrak s.n. | 17 May, 25 May 1950 | United States of America | Maryland | Prince George's Co. Wälder der… | type | ||||
| Cryptodiaporthe liquidambaris Petr. | F. Petrak s.n. | 25 May 1950 | United States of America | Maryland | Prince George's Co. Wälder der… | type | ||||
| Diaporthe rhamnigena Petr. | F. Petrak s.n. | Apr 1916 | Czech Republic | — | M. - Weisskirchen: Usti, Moravia | cotype |
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| Diaporthe veronicae Rehm | F. Petrak s.n. | Apr 1916 | Czech Republic | — | M. - Weisskirchen: Usti, Moravia | type |
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| Gnomonia robertiani Petr. | F. Petrak s.n. | May 1924 | Czech Republic | — | Moravia, M. Weisskirchen | type |
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| Hercospora tiliae f. gigantea Petr. | F. Petrak s.n. | Oct 1920 | Czech Republic | — | M. Weisskirchen, Podhorn | type |
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| Melanconis desmazieri Petr. | F. Petrak s.n. | Apr 1936 | Czech Republic | — | Moravia, M.- Weisskirchen: Svrcow | type |
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| Hypocrea subalpina Petr. | F. Petrak s.n. | Jul 1939 | Germany | — | (illegible) bei Lenz | microslide of type |
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| Phyllachora tirolensis Petr. | F. Petrak s.n. | Jul 1940 | Austria | — | Summit region of nordkettenkammes near… | type |
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| Anthostoma bavaricum Petr. | F. Petrak s.n. | Aug 1925 | Czech Republic | — | Moravia, M. Weisskirchen | type |
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| Ascochyta galeobdolina Petr. [ined.] | F. Petrak s.n. | May 1924 | Czech Republic | — | Moraviaeastern Moravia, exact location illegible | taxon ined. |
![Ascochyta galeobdolina Petr. [ined.]](https://sweetgum.nybg.org/images3/1717/432/01097091.thumb.jpg)
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| Coniothyrium scopariicola Petr. | F. Petrak s.n. | Sep 1913 | Czech Republic | — | MoraviaM-Weisskirchen, Hrabuvka | type |
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| Coniothyrium sydowianum Petr. | F. Petrak s.n. | 17 Jan 1919 | Czech Republic | — | MoraviaM-Weisskirchen, Mil-Oberralschule | type |
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| Aplosporella tiliacea var. dubia Petr. | F. Petrak s.n. | 26 Oct 1914 | Czech Republic | — | MoraviaM. - Weisskirchen | type |
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| Macrodiplodia libertiana Petr. | F. Petrak s.n. | Dec 1912 | Czech Republic | — | MoraviaMähr.-Weisskirchen: Mil.-Oberrealschule | type |
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| Macrophoma euonymicola Petr. | F. Petrak s.n. | 24 Dec 1918 | Czech Republic | — | MoraviaM.-Weisskirchen- Svrcov | type |
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| Phomopsis genistae-tinctoriae Petr. | F. Petrak s.n. | Apr 1916 | Czech Republic | — | MoraviaMähren-Weisskirchen: Hrabovka (not certain) | type |
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| Phyllosticta lupulina Petr. | F. Petrak s.n. | Aug 1914 | Czech Republic | — | MoraviaM.- Weisskirchen | type |
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| Phyllostictina tussilaginis Petr. | F. Petrak s.n. | Sep 1920 | Czech Republic | — | M. Weisskirchen: Czernotin | type |
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| Sclerophomella erysimi Petr. | F. Petrak s.n. | May 1924 | Czech Republic | — | M. Weisskirchen | type |
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