Displaying 1 - 25 out of 41 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Lythrum salicaria L. | A. M. Isaacs s.n. | 09 Jul 1889 | United States of America | New York | Orange Co. Cornwall-on-Hudson | — | 365721 |
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| Pinus rigida Mill. | A. M. Isaacs s.n. | Aug 1891 | United States of America | New York | Saratoga Springs | — | 62640 |
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| Erigeron annuus (L.) Pers. | A. M. Isaacs s.n. | 01 Jul 1893 | United States of America | New York | Westchester Co. Yonkers | — | 2077107 |
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| Erigeron pulchellus Michx. | A. M. Isaacs | 15 May 1889 | United States of America | New York | Bronx Co. Hunt's Point | — | 2093729 |
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| Carex scirpoidea subsp. scirpoidea | A. M. Isaacs s.n. | — | — | — | White Mountains | — | 2302487 |
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| Solidago canadensis L. var. canadensis | A. M. Isaacs s.n. | 01 Aug 1890 | United States of America | New York | Westchester Co. | — | 2338232 |
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| Solidago canadensis L. var. canadensis | A. M. Isaacs s.n. | 08 Sep 93 | United States of America | New Jersey | Bergen Co. | — | 2338277 |
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| Solidago rugosa Mill. var. rugosa | A. M. Isaacs s.n. | Sept. 8/94 | United States of America | New Jersey | Bergen Co. Alpine. | — | 2369706 |
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| Solidago sempervirens var. sempervirens | A. M. Isaacs s.n. | Sept. 8/93 | United States of America | New Jersey | Bergen Co. Shores of Hudson,… | — | 2371572 |
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| Juncus pylaei Laharpe | A. M. Isaacs s.n. | 21 Jul 93 | United States of America | New Jersey | Bergen Co. | — | 2398083 |
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| Kalmia latifolia var. latifolia | A. M. Isaacs s.n. | June 10/95 | — | — | — | 2524393 |
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| Lycopodium clavatum L. | A. M. Isaacs s.n. | 15 Aug 1895 | United States of America | Pennsylvania | Otter Lake | — | 3329731 |
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| Dendrolycopodium obscurum (L.) A.Haines | A. M. Isaacs s.n. | Jul 1891 | United States of America | New York | Saratoga Springs | — | 3147964 |
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| Diphasiastrum digitatum (A.Braun) Holub | A. M. Isaacs s.n. | Aug 1888 | United States of America | New York | Lebanon Springs | — | 3504973 |
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| Asplenium trichomanes L. | A. M. Isaacs s.n. | 01 May 1900 | United States of America | Pennsylvania | Diagueau's L. | — | 3523112 |
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| Asplenium rhizophyllum L. | A. M. Isaacs s.n. | 29 Apr 1896 | United States of America | New York | Nipera Park | — | 3523612 |
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| Polystichum acrostichoides (Michx.) Schott | A. M. Isaacs s.n. | 05 Jul 1893 | United States of America | New York | Park Hill | — | 3539119 |
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| Osmunda claytoniana L. | A. M. Isaacs s.n. | 18 May 1893 | United States of America | New York | Bronx Co. Bronx Park | — | 3235310 |
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| Osmunda claytoniana L. | A. M. Isaacs s.n. | 15 May 1893 | United States of America | New York | Bryn Mawr or Park Hill | — | 3235369 |
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| Osmunda claytoniana L. | A. M. Isaacs s.n. | 15 May 1893 | United States of America | New York | Bryn Mawr Park | — | 3235370 |
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| Osmunda regalis L. | A. M. Isaacs s.n. | 14 Jun 1889 | United States of America | New York | New York Co. Ramble, Central… | — | 3553601 |
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| Thelypteris palustris (A.Gray) Schott | A. M. Isaacs s.n. | 15 Aug 1890 | United States of America | New York | Westchester Co. | — | 3795570 |
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| Cystopteris tenuis (Michx.) Desv. | A. M. Isaacs s.n. | 28 Jun 1893 | United States of America | New York | Yonkers | — | 3800484 |
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| Cystopteris tenuis (Michx.) Desv. | A. M. Isaacs s.n. | 28 Jun 1893 | United States of America | New York | Yonkers | — | 3800485 |
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| Woodsia obtusa (Spreng.) Torr. | A. M. Isaacs s.n. | 21 Aug 1890 | United States of America | New York | Westchester Co. | — | 3810482 |
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