Displaying 1 - 25 out of 41 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Bjerkandera | W. C. Stevenson s.n. | Aug 1878 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park, Philadelphia. | — |
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| Scleroderma citrinum Pers. | W. C. Stevenson s.n. | Sep 1879 | United States of America | Pennsylvania | Philadelphia Co. in Fairmount Park,… | — |
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| Merulius ambiguus Berk. | W. C. Stevenson s.n. | 04 Mar 1880 | United States of America | New Jersey | Gloucester Co. Newfield | — |
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| Ustilago heufleri Fuckel | W. C. Stevenson s.n. | May 1880 | United States of America | Pennsylvania | Fairmount Park. Philada. | — |
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| Ustilago heufleri Fuckel | W. C. Stevenson s.n. | May 1880 | United States of America | Pennsylvania | Fairmount Park. Philada. | — |
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| Ustilago heufleri Fuckel | W. C. Stevenson s.n. | May 1880 | United States of America | Pennsylvania | Fairmount Park. Philada. | — |
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| Puccinia pimpinellae (F.Strauss) Röhl. | W. C. Stevenson 411 | Jun 1880 | United States of America | Pennsylvania | Chester Co. | — |
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| Puccinia podophylli Schwein. | W. C. Stevenson s.n. | 6 1880 | — | — | West Park | — | ||||
| Polyporus alveolaris (DC.:Fr.) Bondartsev & Singer | W. C. Stevenson s.n. | Nov 1881 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park, Philadelphia. | — |
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| Peronospora lepidii (McAlpine) G.W.Wilson | W. C. Stevenson s.n. | Jun 1882 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park, Philadelphia. | — |
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| Peronospora parasitica (Pers.:Fr.) Fr. | W. C. Stevenson s.n. | Jun 1882 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park, Philadelphia | — |
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| Peronospora parasitica (Pers.:Fr.) Fr. | W. C. Stevenson s.n. | Jun 1882 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park, Philadelphia | — |
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| Chaetomella stevensonii Ellis | W. C. Stevenson s.n. | Jun 1882 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park | type |
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| Trichaptum biforme (Fr.) Ryvarden | W. C. Stevenson s.n. | Nov 1882 | United States of America | Pennsylvania | Philadelphia Co. Fairmount Park, Philadelphia. | — |
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| Puccinia arenariae (Schumach.) G.Winter | W. C. Stevenson s.n. | Jun 1883 | United States of America | Pennsylvania | Fhilada | — |
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| Puccinia arenariae (Schumach.) G.Winter | W. C. Stevenson s.n. | 04 Jun 1883 | United States of America | Pennsylvania | Philadelphia Co. | — |
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| Puccinia cryptotaeniae Peck | W. C. Stevenson s.n. | Aug 1884 | United States of America | Pennsylvania | Fairmount Park, Philada | — |
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| Puccinia cryptotaeniae Peck | W. C. Stevenson s.n. | Aug 1884 | United States of America | Pennsylvania | Fairmount Park, Philada | — |
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| Puccinia cryptotaeniae Peck | W. C. Stevenson s.n. | Aug 1884 | United States of America | Pennsylvania | Fairmount Park, Philada | — |
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| Puccinia cryptotaeniae Peck | W. C. Stevenson s.n. | Aug 1884 | United States of America | Pennsylvania | Fairmount Park, Philada | — |
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| Puccinia recondita Roberge ex Desm. | W. C. Stevenson s.n. | Jul 1885 | United States of America | Delaware | Water Gap | — |
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| Septoria kalmicola Berk. & M.A.Curtis | W. C. Stevenson | 12 Jun 1886 | United States of America | Pennsylvania | Roselyn | — | ||||
| Chaetosphaeria pannicola (Berk. & M.A.Curtis) Sacc. | W. C. Stevenson s.n. | Aug 1886 | United States of America | Pennsylvania | Delaware Co. [No specific locality… | — |
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| Crepidotus calolepis (Fr.) P.Karst. | W. C. Stevenson s.n. | Jul 1889 | United States of America | Pennsylvania | Chester Co. Goshenville [an unincorporated… | — |
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| Calvatia craniiformis (Schwein.) Fr. | W. C. Stevenson | 1896 | United States of America | — | — |