Displaying 126 - 200 out of 292 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Melanconis xanthostroma (Fr.) J.Schröt. | F. Petrak 637 | 27 Jul 1916 | Poland | — | Walder...[Locality information is illegible] | — |
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| Melanconis xanthostroma (Fr.) J.Schröt. | F. Petrak s.n. | Aesten | Germany | — | bei Weisskirchen, Mähren | — |
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| Melanconis xanthostroma (Fr.) J.Schröt. | F. Petrak s.n. | m. Dec. | Poland | — | prope Stryi | — |
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| Pseudovalsa umbonata (Tul. & C.Tul.) Sacc. | F. Petrak s.n. | Sep 1925 | — | — | — |
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| Sydowiella fenestrans (Duby) Petr. | F. Petrak s.n. | m. Apr. | Czech Republic | — | Hraburka ad Mährisch-Weißkirchen, Moravia | — |
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| Hymenochaete corrugata (Fr.:Fr.) Lév. | F. Petrak 466 | Sep 1925 | — | — | — |
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| Leucostoma kunzei (Kunze) Munk | F. Petrak s.n. | Aug 1923 | Czech Republic | — | ...bei Vsetin [Locality is illegible] | — |
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| Leucostoma niveum (Hoffm.) Höhn. | F. Petrak s.n. | 28.I[?].1918 | Bosnia and Herzegovina | — | Sarajevo.. | — |
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| Valsa ambiens (Pers.) Fr. | F. Petrak 72-2 | 27 Oct 1918 | Bosnia and Herzegovina | — | Sarajevo, Bosnia | — |
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| Valsa ambiens (Pers.) Fr. | F. Petrak 167 | 27 Oct 1918 | Bosnia and Herzegovina | — | Sarajevo, Bosnia | — |
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| Valsa ambiens (Pers.) Fr. | F. Petrak 168 | 27 Oct 1918 | Bosnia and Herzegovina | — | Sarajevo, Bosnia | — |
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| Valsa ambiens (Pers.) Fr. | F. Petrak s.n. | s.d. | Czech Republic | — | bei Mährisch-Weisskirchen, Mähren | — |
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| Valsa auerswaldii Nitschke | F. Petrak 72-2 | 23 Oct 1978 | Bosnia and Herzegovina | — | Sarajevo | — |
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| Valsa ceratophora C.Tul. | F. Petrak s.n. | 26 Jan 1918 | Bosnia and Herzegovina | — | Sarajevo... | — |
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| Valsa dissepta (Fr.) Fr. | F. Petrak s.n. | Mar 1913 | — | — | Weisskirchen | — |
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| Valsa dissepta (Fr.) Fr. | F. Petrak 262 | May 1922 | Germany | — | West Berlin [part of locality… | — |
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| Valsa dubyi Nitschke | F. Petrak 274 | Aug 1933 | Germany | — | West Berlin [part of locality… | — |
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| Valsa etherialis Ellis & Everh. | F. Petrak s.n. | Nov 1915 | United States of America | Virginia | Vienna | — |
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| Valsa germanica Nitschke | F. Petrak s.n. | s.d. | Ukraine | — | prope Stryi | — |
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| Valsa germanica Nitschke | F. Petrak s.n. | 27.X.1918 | — | — | — |
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| Valsa populina (Pers.) Sacc. | F. Petrak s.n. | 1913 | Czech Republic | — | "Mähr-Weisskirchen" (Hranice) | — |
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| Valsa salicina (Pers.) Fr. | F. Petrak 173 | 24 Oct 1918 | Bosnia and Herzegovina | — | Sarajevo, Bachofer | — |
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| Phellinus pini (Brot.:Fr.) A.Ames | F. Petrak 272 | Aug 1923 | — | — | [Illegible precise loc.] | — |
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| Valsella crataegi Allesch. | F. Petrak s.n. | Sep 1912 | Czech Republic | — | bei Mährisch Weißkirchen [Hranice] | — |
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| Albertiniella reticulata Kirschst. | F. Petrak s.n. | Sep 1932 | Austria | — | Weisskirchen | — |
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| Phellinus igniarius (L.:Fr.) Quél. | F. Petrak s.n. | May 1923 | — | — | [Illegible precise loc.] | — |
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| Erysiphe tortilis (Wallr.) Fr. | F. Petrak s.n. | Sep 1922 | — | — | Herb Bermiden: Bermon [?] | — |
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| Erysiphe umbelliferarum (Lév.) de Bary | F. Petrak s.n. | Sep 1923 | — | — | Hest-Berkislen: Ufer der Unt. Biewer… | — |
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| Entyloma linariae Schroet. | F. Petrak s.n. | Aug 1923 | — | — | Hert - Berkiolen: Gorenks stal… | — |
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| Podosphaera leucotricha (Ellis & Everh.) E.S.Salmon | F. Petrak s.n. | 30 Oct 1918 | — | — | Bosmen: Seirojeux, surinem Garten [?] | — |
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| Pseudosphaeria myrtillina (Sacc. & Fautrey) Höhn. | F. Petrak s.n. | Aug 1924 | — | — | Moravia, Hochgesenke, Hochschar | — |
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| Fenestella princeps Tul. & C.Tul. | F. Petrak s.n. | Apr 1936 | — | — | [illegible] | — |
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| Melanomma pulvis-pyrius Fr. | F. Petrak s.n. | May 1923 | — | — | Hert-Bethiden: am [?] des Rerthos… | — |
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| Microthyrium pinophyllum (Höhn.) Petr. | F. Petrak s.n. | May 1924 | — | — | Moravia, M. Weisskirchen | — |
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| Seynesiella juniperi (Desm.) G.Arnaud | F. Petrak s.n. | Oct 1924 | — | — | Moravia, M. Weisskirchen | — |
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| Nectria dacrymycella (Nyl.) P.Karst. | F. Petrak s.n. | Oct 1926 | — | — | Moravia, M. Weisskirchen | — |
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| Cucurbitaria rubefaciens Petr. | F. Petrak s.n. | May 1927 | — | — | Moravia, M. Weisskirchen | — |
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| Leptosphaeria euphorbiae Niessl | F. Petrak s.n. | May 1924 | — | — | Moravia, M. Weisskirchen | — |
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| Hysteropeltella moravica Petr. | F. Petrak s.n. | Apr 1924 | — | — | Moravia, M. Weisskirchen | — |
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| Hypodermella nervisequia (DC.) Lagerb. | F. Petrak s.n. | May 1936 | — | — | [illegible] | — |
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| Thlaspi montanum L. var. montanum | F. Petrak 50074 | 08 Aug 1950 | United States of America | Wyoming | [illegible] Wy. Camp | — |
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| Eremogone congesta var. congesta | F. Petrak 50021 | 08 Aug 1950 | United States of America | Wyoming | Albany Co. near University Summer… | — |
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| Eremogone congesta var. congesta | F. Petrak 50020 | 07 Aug 1950 | United States of America | Wyoming | Albany Co. near Brooklyn Lake,… | — |
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| Phacelia sericea (Graham) A.Gray var. sericea | F. Petrak 50060 | 10 Aug 1950 | United States of America | Wyoming | Albany Co. Brooklyn Lake, Medicine… | — |
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| Arenaria fendleri A.Gray var. fendleri | F. Petrak 50048 | 12 Aug 1950 | United States of America | Wyoming | Albany Co. Stoney roadside, Hwy… | — |
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| Castilleja rhexifolia Rydb. | F. Petrak 50039 | 09 Aug 1950 | United States of America | Wyoming | Albany Co. Near woods, Brooklyn… | — |
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| Epilobium brachycarpum C.Presl | F. Petrak 50051 | 12 Aug 1950 | United States of America | Wyoming | Albany Co. Roadside, Hwy 30… | — |
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| Paronychia jamesii Torr. & A.Gray | F. Petrak 50203 | 06 Aug 1950 | United States of America | Wyoming | Albany Co. Roadside, Hwy ,… | — |
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| Silene acaulis (L.) Jacq. | F. Petrak 50024 | 09 Aug 1950 | United States of America | Wyoming | Albany Co. At high point… | — |
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| Gaura parviflora Douglas ex Lehm. | F. Petrak 50143 | 04 Aug 1950 | United States of America | Wyoming | Weston Co. roadside, Hwy 85,… | — |
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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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| Diaporthe decorticans (Lib.) Sacc. & Roum. | F. Petrak 3901 | Oct 1955 | Austria | Lower Austria | Osterreich: Niederosterreich, Donau-Auen bei Tulln | — |
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