Displaying 1 - 25 out of 176 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Panax quinquefolius L. | C. D. Fretz | Sep 1867 | United States of America | Pennsylvania | Belmont | — | 198624 |
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| Trollius laxus Salisb. | C. D. Fretz s.n. | 1882 | United States of America | Pennsylvania | Bucks Co. Springfield Township | — | 24340 |
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| Carex grisea var. rigida L.H.Bailey | C. D. Fretz s.n. | 06 Jun 1884 | United States of America | Delaware | Faulkland | isosyntype | 39399 |
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| Crataegus deducta Sarg. | C. D. Fretz 112 | 05 May 1889 (fl) - 02 Oct 1899 (fr) | United States of America | Pennsylvania | Bucks Co. Sellersville | syntype | 1043350 |
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| Crataegus pumila Sarg. | C. D. Fretz 139 | 22 Sep 1906 | United States of America | Pennsylvania | Bucks Co. Sellersville | syntype | 1043371 |
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| Crataegus saturata Sarg. | C. D. Fretz 110 | 19 May 1903 (fl) & 27 Sep 1899 (f) | United States of America | Pennsylvania | Bucks Co. Pleasant Spring bridge | isotype | 1043396 |
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| Crataegus longipetiolata Sarg. | C. D. Fretz 178 | 15 May 1903 - 14 Sep 1903 | United States of America | Pennsylvania | Bucks Co. N. [near] Sellersville,… | syntype | 1043458 |
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| Crataegus schweinitziana Sarg. | C. D. Fretz 119 | 16 Sep 1899 | United States of America | Pennsylvania | Bucks Co. Sellersville | syntype | 1085356 |
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| Crataegus schweinitziana Sarg. | C. D. Fretz 119 | May 1903 (fl) & 10 Sep 1903 (st) | United States of America | Pennsylvania | Bucks Co. Near Sellersville. | not a type | 1085357 |
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| Crataegus delicata Sarg. | C. D. Fretz 177 | 15 May 1903 (fl) - 14 Sep 1903 (fr) | United States of America | Pennsylvania | Bucks Co. Near Sellersville [from… | syntype | 1085363 |
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| Crataegus collinsiana Sarg. | C. D. Fretz 163 | 15 May 1903 (fl) & 14 Sep 1903 (fr) | United States of America | Pennsylvania | Bucks Co. Near Sellersville [from… | isotype | 1085364 |
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| Crataegus pygmaea Sarg. | C. D. Fretz 161 | 24 May 1905 | United States of America | Pennsylvania | Bucks Co. West Rockhill Twp.,… | — | 1085368 |
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| Crataegus pygmaea Sarg. | C. D. Fretz 161 | 25 Sep 1905, 22 May 1906 & 30 Aug 1907 | United States of America | Pennsylvania | Bucks Co. Sellersville | not a type | 1085367 |
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| Crataegus scabriuscula Sarg. | C. D. Fretz 170 | 09 May 1903 (fl) & 29 Sep 1903 (fr) | United States of America | Pennsylvania | Bucks Co. Durham | syntype | 1085371 |
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| Crataegus ruthiana Sarg. | C. D. Fretz 150 | 09 May 1903 (fl) | United States of America | Pennsylvania | Bucks Co. Durham | — | 1085372 |
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| Crataegus ruthiana Sarg. | C. D. Fretz 150 | 09 May 1903 & 29 Sep 1903 (fr) | United States of America | Pennsylvania | Bucks Co. Durham | not a type | 1085373 |
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| Crataegus rufipes Ashe | C. D. Fretz | 13 May 1903 (fl), 03 Jul 1903, & 19 Sep 1903 (fr) | United States of America | Pennsylvania | Bucks Co. Sellersville | not a type | 1085887 |
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| Eragrostis pectinacea (Michx.) Nees | C. D. Fretz s.n. | 17 Aug 1923 | United States of America | Pennsylvania | Bucks Co. Sellersville | — | 1699446 |
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| Symphyotrichum cordifolium (L.) G.L.Nesom | C. D. Fretz s.n. | 1882 | United States of America | Pennsylvania | Bucks Co. Sellersville. [Inferred county… | — | 1845211 |
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| Crataegus ruthiana Sarg. | C. D. Fretz 149 | 24 Sep 1901 (fr) & 09 May 1903 (fl) | United States of America | Pennsylvania | Bucks Co. Durham | not a type | 02065569 |
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| Crataegus ruthiana Sarg. | C. D. Fretz 150 | 24 Sep 1901 | United States of America | Pennsylvania | Bucks Co. Limestone bluff, Durham… | not a type | 02065568 |
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| Crataegus firma Sarg. | C. D. Fretz 128 | 16 May 1903 (fl) - 19 Sep 1903 (fr, in packet) | United States of America | Pennsylvania | Bucks Co. Sellersville | not a type | 02065567 |
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| Crataegus firma Sarg. | C. D. Fretz 128 | 16 May 1903 (no flowering branches on this sheet) & 19 Sep 1903 (fr) | United States of America | Pennsylvania | Bucks Co. Sellersville | not a type | 02065566 |
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| Carex complanata Torr. & Hook. | C. D. Fretz s.n. | 19 Jun 1923 | United States of America | Pennsylvania | Bucks Co. Near Angus [=within… | — | 2259983 |
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| Carex granularis Muhl. ex Willd. | C. D. Fretz s.n. | 19 Jun 1923 | United States of America | Pennsylvania | Bucks Co. Ridge Valley churches,… | — | 2278682 |
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