Displaying 1 - 75 out of 805 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Acalypha gracilens A.Gray | F. C. Seymour 1257 | 04 Sep 1916 | United States of America | Massachusetts | Dukes Co. Parsonage Pond | — | 3905184 |
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| Acer rubrum L. | F. C. Seymour 550 | 02 Jun 1926 | United States of America | Massachusetts | Hampden Co. swamp, Muddy Brook | — | 2488026 |
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| Acer spicatum Lam. | F. C. Seymour 135 | 16 Jun 1914 | United States of America | Massachusetts | Hampden Co. | — | 2490207 |
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| Acisanthera erecta Gleason | F. C. Seymour 3403 | 13 Jan 1970 | Nicaragua | Chontales | Rain forest on mountainside; Santo… | — | 3144356 |
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| Acmella filipes var. parvifolia (R.K.Jansen) Benth. | F. C. Seymour 1781 | 4 Jan 1969 | Nicaragua | Chontales | 2 km S Acoyapa | — | 358735 | ||
| Acmella papposa (Hemsl.) R.K.Jansen var. papposa | F. C. Seymour 2137 | 11 Jan 1969 | Nicaragua | Jinotega | 10 km al NE Jinotega | — | 358868 |
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| Actaea pachypoda Elliott | F. C. Seymour 40 | 15 Sep 1913 | United States of America | Massachusetts | Hampden Co. Rich, cool woods,… | — | 2727543 |
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| Actaea rubra (Aiton) Willd. | F. C. Seymour 674 | 26 Jul 1927 | United States of America | Massachusetts | Hampden Co. Wilbraham, Mt. Wilbraham | — | 2727995 |
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| Adiantum concinnum Humb. & Bonpl. ex Willd. | F. C. Seymour 1402 | 29 Dec 1968 | Nicaragua | Managua | Rte 8, 4k SW of… | — | 3915358 |
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| Adiantum deflectens Mart. | F. C. Seymour 841 | 20 Dec 1968 | Nicaragua | Nueva Segovia | Dried up riverbed in deep… | — | 3915420 |
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| Adiantum latifolium Lam. | F. C. Seymour 4125 | 03 Mar 1971 | Nicaragua | Región Autónoma del Caribe Norte | [Former] Department of Zelaya. Jackson… | — | 3915553 |
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| Adiantum lunulatum Burm.f. | F. C. Seymour 6234 | 30 Jul 1972 | Nicaragua | Río San Juan | San Bartolo | — | 3915674 |
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| Adiantum pedatum L. | F. C. Seymour 189 | 24 Jun 1914 | United States of America | Massachusetts | Hampden Co. | — | 3483315 |
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| Adiantum villosum L. | F. C. Seymour 6199 | 29 Jul 1972 | Nicaragua | Río San Juan | San Bartolo | — | 3920164 |
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| Agalinis acuta Pennell | F. C. Seymour 1342 | 06 Sep 1917 | United States of America | Massachusetts | Dukes Co. Along State Road,… | — | 26389 |
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| Ageratum houstonianum Mill. | F. C. Seymour 4002 | 28 Feb 1971 | Nicaragua | Matagalpa | Along route 5, toward TUMA | — | 359493 |
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| Ageratum houstonianum Mill. | F. C. Seymour 3418 | 13 Jan 1970 | Nicaragua | Chontales | Santo Domingo, Nicaragua | — | 359492 |
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| Agrostis capillaris L. | F. C. Seymour 1064 | 27 Jun 1916 | United States of America | Massachusetts | Marthas Vineyard. Oak Bluffs. | — | 1554699 |
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| Agrostis capillaris L. | F. C. Seymour 99 | 19 Sep 1913 | United States of America | Massachusetts | Hampden Co. Granville. | — | 1554702 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. C. Seymour 1068 | 21 Jun 1917 | United States of America | Massachusetts | Near Jerry's Pond, West Tisbury.… | — | 1555743 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. C. Seymour 1066 | 04 Sep 1916 | United States of America | Massachusetts | Parsonage Pond, West Tisbury. | — | 1555744 |
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| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | F. C. Seymour s.n. | 21 Jun 1943 | United States of America | Massachusetts | Worcester Co. Clinton. | — | 1555750 |
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| Agrostis perennans (Walter) Tuck. | F. C. Seymour s.n. | 12 Sep 1916 | United States of America | Massachusetts | Hampden Co. Bad Luck Mt.,… | — | 1556750 |
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| Agrostis stolonifera L. | F. C. Seymour 1067 | 27 Jul 1916 | United States of America | Massachusetts | Along Look's Brook, West Tisbury. | — | 1533058 |
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| Ahnfeltia | F. C. Seymour s.n. | 25 Nov 1934 | United States of America | Massachusetts | Norfolk Co. Houghs Neck | — | 03559169 |
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| Alnus incana subsp. rugosa (Du Roi) R.T.Clausen | F. C. Seymour 41 | 20 Sep 1913 | United States of America | Massachusetts | Hampden Co. Brookside. Granville. | — | 2471764 |
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| Alopecurus geniculatus L. | F. C. Seymour s.n. | 22 Jun 1925 | United States of America | Massachusetts | Hampden Co. West Holyoke, Holyoke. | — | 1637997 |
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| Ambrosia trifida L. | F. C. Seymour 603 | 07 Sep 1926 | United States of America | Massachusetts | Hampden Co. slopes above the… | — | 1884535 |
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| Amelanchier arborea (F.Michx.) Fernald x A. laevis Wiegand | F. C. Seymour 570 | 12 May 1926 | United States of America | Massachusetts | Hampden Co. Desiduous woods: bank… | — | 2709581 |
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| Amelanchier canadensis (L.) Medik. | F. C. Seymour 19244 | 21 Jun 1961 | United States of America | Massachusetts | Bristol Co. Rehoboth | — | 2721634 |
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| Amelanchier laevis Wiegand | F. C. Seymour 1224 | 29 Jun 1916 | United States of America | Massachusetts | Dukes Co. inland shore of… | — | 2722154 |
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| Amelanchier oblongifolia (Torr. & A.Gray) M.Roem. | F. C. Seymour 571 | 12 May 1926 | United States of America | Massachusetts | Hampden Co. Roadside thicket. Chicopee… | — | 2722276 |
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| Amelanchier oblongifolia (Torr. & A.Gray) M.Roem. | F. C. Seymour 1222 | 08 Jun 1917 | United States of America | Massachusetts | Dukes Co. Martha's Vineyard | — | 2722320 |
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| Amelanchier prunifolia Greene | F. C. Seymour 1230 | 21 Sep 1916 | United States of America | Massachusetts | Dukes Co. along Middle Road,… | — | 2709718 |
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| Ammophila breviligulata Fernald | F. C. Seymour 1070 | 23 Sep 1916 | United States of America | Massachusetts | Shore of Lagoon Pond; Vineyard… | — | 1638582 |
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| Amphicarpaea pitcheri Torr. & A.Gray | F. C. Seymour 84 | 17 Sep 1913 | United States of America | Massachusetts | Hampden Co. | — | 2560281 |
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| Anaphalis margaritacea (L.) Benth. & Hook.f. | F. C. Seymour 46 | 20 Sep 1913 | United States of America | Massachusetts | Hampden Co. | — | 1884845 |
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| Andropogon gerardii Vitman | F. C. Seymour 1037 | 09 Sep 1917 | United States of America | Massachusetts | Martha's Vineyard; Hillside near Cliffs,… | — | 1638934 |
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| Andropogon glomeratus var. glomeratus | F. C. Seymour 1441 | 21 Sep 1916 | United States of America | Massachusetts | Tea Lane, Chilmark | — | 1639603 |
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| Anemone cylindrica A.Gray | F. C. Seymour 673 | 26 Jul 1927 | United States of America | Massachusetts | Hampden Co. Open spots in… | — | 2738919 |
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| Anemone quinquefolia L. var. quinquefolia | F. C. Seymour 1213 | 8 Jun 1917 | United States of America | Massachusetts | West Tisbury, Martha's Vineyard | — | 2740625 |
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| Anemone virginiana L. | F. C. Seymour 577 | 26 Jul 1926 | United States of America | Massachusetts | Hampden Co. Dry, open woods,… | — | 2741038 |
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| Antennaria howellii subsp. canadensis (Greene) R.J.Bayer | F. C. Seymour 555 | 2 June 1926 | United States of America | Massachusetts | Ludlow. | — | 1890112 |
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| Antennaria howellii subsp. petaloidea (Fernald) R.J.Bayer | F. C. Seymour 554 | 2 June 1926 | United States of America | Massachusetts | Hampden Co. Ludlow | — | 1890401 |
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| Antennaria neglecta Greene | F. C. Seymour 1378 | 07 Jun 1917 | United States of America | Massachusetts | Dukes Co. | — | 1891646 |
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| Antennaria neglecta Greene | F. C. Seymour 609 | 12 May 1926 | United States of America | Massachusetts | Hampden Co. Chicopee Falls | — | 1891717 |
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| Antennaria neglecta Greene | F. C. Seymour 1377 | 07 Jun 1917 | United States of America | Massachusetts | Dukes Co. | — | 1880858 |
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| Antennaria neglecta Greene | F. C. Seymour 1376 | 07 Jun 1917 | United States of America | Massachusetts | Dukes Co. near Jerry's Pond | — | 1891903 |
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| Antennaria plantaginifolia (L.) Richardson | F. C. Seymour 1379 | 16 Jun 1917 | United States of America | Massachusetts | Dukes Co. Vineyard Haven | — | 1879206 |
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| Antennaria plantaginifolia (L.) Richardson | F. C. Seymour 1435 | 07 Jun 1917 | United States of America | Massachusetts | Dukes Co. near Jerry's Pond | — | 1879207 |
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| Anthemis cotula L. | F. C. Seymour 1389 | 28 Jul 1916 | United States of America | Massachusetts | Dukes Co. | — | 1895880 |
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| Anthoxanthum odoratum L. | F. C. Seymour 158 | 16 Jun 1914 | United States of America | Massachusetts | Hampden Co. | — | 1646621 |
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| Apios americana Medik. | F. C. Seymour 681 | Sep 14 1927 | United States of America | Massachusetts | Hampden Co. Near Five Mile… | — | 2560350 |
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| Apocynum androsaemifolium L. | F. C. Seymour 53 | 19 Sep 1913 | United States of America | Massachusetts | Hampden Co. | — | 4173741 |
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| Apocynum medium Greene | F. C. Seymour 1431 | 05 Sep 1917 | United States of America | Massachusetts | Dukes Co. east of North… | — | 4175118 |
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| Apocynum sibiricum Jacq. | F. C. Seymour 200 | 25 Jun 1914 | United States of America | Massachusetts | Hampden Co. | — | 4175343 |
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| Aralia hispida Vent. | F. C. Seymour 361 | 14 Sep 1915 | United States of America | Massachusetts | Hampden Co. | — | 2557914 |
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| Aralia nudicaulis var. nudicaulis | F. C. Seymour 1295 | 10 Jun 1917 | United States of America | Massachusetts | Dukes Co. along Middle Road,… | — | 2558259 |
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| Aralia racemosa var. racemosa | F. C. Seymour 52 | 20 Sep 1913 | United States of America | Massachusetts | Hampden Co. | — | 2558343 |
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| Arctium lappa L. | F. C. Seymour 414 | 15 Sep 1915 | United States of America | Massachusetts | Hampden Co. West Granville | — | 1896442 |
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| Arctium minus (Hill) Bernh. | F. C. Seymour 415 | 16 Sep 1915 | United States of America | Massachusetts | Hampden Co. West Granville | — | 1896576 |
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| Arctostaphylos uva-ursi (L.) Spreng. | F. C. Seymour 1301 | 05 Sep 1916 | United States of America | Massachusetts | Martha's Vineyard. Along Edgartown Road,… | — | 2517850 |
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| Aristida dichotoma Michx. | F. C. Seymour 1061 | 05 Sep 1916 | United States of America | Massachusetts | Dukes Co. along Edgartown Road,… | — | 1473771 |
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| Aristida dichotoma Michx. | F. C. Seymour 95 | 16 Sep 1913 | United States of America | Massachusetts | Hampden Co. | — | 1473770 |
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| Aristida purpurascens Poir. | F. C. Seymour 1062 | 21 Aug 1916 | United States of America | Massachusetts | Dukes Co. plains west of… | — | 1558031 |
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| Aronia arbutifolia (L.) Pers. | F. C. Seymour 17816 | 3 Oct 1957 | United States of America | Massachusetts | Bristol Co. Raynham | — | 2709036 |
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| Artemisia stelleriana Besser | F. C. Seymour 1393 | 22 Jun 1917 | United States of America | Massachusetts | Dukes Co. Sengekontacket Pond | — | 1909061 |
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| Asclepias oenotheroides Schltdl. & Cham. | F. C. Seymour 5440 | 05 Apr 1974 - 06 Apr 1971 | Nicaragua | Managua | In vicinity of Escuela Nacional… | — | 4176224 |
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| Asplenium platyneuron (L.) Oakes | F. C. Seymour 304 | 24 Jun 1914 | United States of America | Massachusetts | Hampden Co. | — | 3519472 |
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| Asplenium trichomanes L. | F. C. Seymour 155 | 17 Jun 1914 | United States of America | Massachusetts | Hampden Co. | — | 3522954 |
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| Athyrium filix-femina subsp. angustum (Willd.) R.T.Clausen | F. C. Seymour 316 | 10 Sep 1915 | United States of America | Massachusetts | Hampden Co. Granville. | — | 3909552 |
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| Athyrium thelypterioides (Michx.) Desv. | F. C. Seymour 315 | 18 Sep 1915 | United States of America | Massachusetts | Hampden Co. | — | 3798210 |
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| Baccharis trinervis Pers. | F. C. Seymour 3282 | 7 Jan 1970 | Nicaragua | — | Zelaya. Near Siuna | — | 361557 |
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| Baltimora recta L. | F. C. Seymour 2678 | 27 Dec 1969 | Nicaragua | Chinandega | Near río Chiquito, El Viejo | — | 361869 |
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| Baltimora recta L. | F. C. Seymour 2392 | 18 Dec 1969 | Nicaragua | León | Nagarote | — | 361878 |
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