Displaying 1 - 75 out of 6891 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Lithomyxa calcigena f. ferrifera M.Howe | D. White | C. B. Read | M. A. Howe s.n. | 07 Dec 1930 | United States of America | West Virginia | Furnace creek, near Harpen's Ferry. | probable type | 945514 |
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| Lithomyxa calcigena M.Howe | D. White | C. B. Read | M. A. Howe s.n. | 07 Dec 1930 | United States of America | West Virginia | Furnace creek, near Harpen's Ferry. | holotype | 945512 |
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| Lithomyxa calcigena M.Howe | D. White | C. B. Read | M. A. Howe s.n. | 07 Dec 1930 | United States of America | West Virginia | Furnace creek, near Harpen's Ferry. | type | 945513 |
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| Protococcus | D. White | M. A. Howe | C. B. Read s.n. | 07 Dec 1930 | United States of America | West Virginia | Furnace Creek, 1 1/2 miles… | — | 2110074 |
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| Protococcus | D. White | M. A. Howe | C. B. Read s.n. | 07 Dec 1930 | United States of America | West Virginia | Furnace Creek, 1 1/2 miles… | — | 2285435 |
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| Ceramium byssoideum Harv. | M. A. Howe ? | 15 Apr 1904 | Bahamas | — | North Cat Cay | — | 2115065 |
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| Dryopteris expansa (C.Presl) Fraser-Jenk. & Jermy | M. A. Howe 1 | 30 May 1896 | United States of America | California | Humboldt Co. | — | 3550900 |
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| Ramalina complanata (Sw.) Ach. | M. A. Howe 1 | 05 Jun 1900 | Bermuda | Saint George's | Paynters Hill | — | 4512924 |
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| Cladophora membranacea Hofman Bang ex C.Agardh | M. A. Howe 1 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor, White's Island, on… | — | 2129763 |
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| Dryopteris expansa (C.Presl) Fraser-Jenk. & Jermy | M. A. Howe 2 | 30 May 1896 | United States of America | California | Eureka | — | 3550899 |
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| Nitella clavata Kütz. | M. A. Howe 2 | 21 Oct 1892 | United States of America | California | San Francisco Co. Lake Merced,… | — | 2020934 |
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| Nitella clavata Kütz. | M. A. Howe 2 | 21 Oct 1892 | United States of America | California | San Francisco Co. Lake Merced,… | — | 2020922 |
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| Spyridia filamentosa (Wulfen) Harv. | M. A. Howe 2 | 08 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2267108 |
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| Leptogium denticulatum Tuck. | M. A. Howe 2 | 14 Jun 1900 | Bermuda | Hamilton | Walsingham | — | 4510397 |
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| Chara contraria A.Braun ex Kütz. | M. A. Howe 3 | Apr 1892 | United States of America | California | Santa Clara Co. | — | 2017657 |
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| Bryopsis hypnoides J.V.Lamour. | M. A. Howe 3 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor, White's Island, on… | — | 2024962 |
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| Polysiphonia ferulacea Suhr ex J.Agardh | M. A. Howe 4 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor, White's Island | — | 2186782 |
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| Chara globularis Thuill. | M. A. Howe 4 | Jul 1892 | United States of America | California | Lake Majella, near Monterey | — | 2018107 |
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| Sphacelaria cirrosa (Roth) C.Agardh | M. A. Howe 4 | 08 Aug 1900 - 18 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2274166 |
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| Rhizoclonium hookeri Kütz. | M. A. Howe 5 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2134414 |
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| Padina australis Hauck | M. A. Howe 6 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor, White's Island | — | 2258074 |
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| Padina pavonia (L.) J.V.Lamour. | M. A. Howe 6 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor, White's Island | — | 2268801 |
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| Chara vulgaris L. | M. A. Howe 6 | Jul 1893 | United States of America | Vermont | Rutland Co. West Haven | — | 2019691 |
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| Champia parvula (C.Agardh) Harv. | M. A. Howe 6 | 08 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2176592 |
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| Agardhiella tenera (J.Agardh) F.Schmitz | M. A. Howe 7 | 08 Aug 1900 | United States of America | Massachusetts | Dukes Co. at base of… | — | 2178211 |
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| Porella bolanderi (Austin) Pearson | M. A. Howe 7 | 08 Feb 1892 | United States of America | California | Alameda Co. | — | 240285 |
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| Porella bolanderi (Austin) Pearson | M. A. Howe 7 | 15 Feb 1892 | United States of America | California | Alameda Co. | — | 240259 |
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| Bryopsis hypnoides J.V.Lamour. | M. A. Howe 7 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2024964 |
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| Caulerpa racemosa (Forssk.) J.Agardh | M. A. Howe 8 | 05 Jun 1900 - 07 Jul 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2117774 |
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| Caulerpa racemosa (Forssk.) J.Agardh | M. A. Howe 8 | 05 Jun 1900 - 07 Jul 1900 | Bermuda | — | Hamilton Harbor | — | 2117792 |
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| Caulerpa racemosa (Forssk.) J.Agardh | M. A. Howe 8 | 08 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore, on… | — | 2117738 |
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| Porella roellii Steph. | M. A. Howe 8 | 19 Mar 1892 | United States of America | California | Marin Co. Mill Valley | — | 237566 |
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| Lophosiphonia obscura (C.Agardh) Falkenb. | M. A. Howe 9 | 05 Jun 1900 - 07 Jul 1900 | Bermuda | — | Hamilton Harbor, on rocks at… | — | 3355868 |
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| Lophosiphonia obscura (C.Agardh) Falkenb. | M. A. Howe 9 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore, on… | — | 2183147 |
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| Griffithsia globulifera Harv. ex Kütz. | M. A. Howe 9 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2213357 |
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| Griffithsia globulifera Harv. ex Kütz. | M. A. Howe 10 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2213368 |
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| Griffithsia globulifera Harv. ex Kütz. | M. A. Howe 10 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2213369 |
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| Griffithsia globulifera Harv. ex Kütz. | M. A. Howe 10 | 08 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2213381 |
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| Bostrychia tenella (J.V.Lamour.) J.Agardh | M. A. Howe 10 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2155214 |
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| Asterella californica (Hampe) Underw. | M. A. Howe 11 | 26 Mar 1892 | United States of America | California | New Berkeley | — | 266151 |
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| Sargassum bermudense Grunow | M. A. Howe 11 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor | — | 2272449 |
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| Ceramium nitens (C.Agardh) J.Agardh | M. A. Howe 12 | s.d. | Bermuda | — | — | 2115861 |
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| Ceramium nitens (C.Agardh) J.Agardh | M. A. Howe 12 | 05 Jun 1900 | Bermuda | — | Hamilton Harbor, White's Island | — | 2115850 |
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| Scleropodium californicum (Lesq.) Kindb. | M. A. Howe 13 | 12 Mar 1892 | United States of America | California | San Francisco Co. r | — | 1030187 |
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| Ulva linza L. | M. A. Howe 13 | 15 Jul 1934 | United States of America | New York | Suffolk Co. | — | 2140171 |
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| Spyridia filamentosa (Wulfen) Harv. | M. A. Howe 13 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2267211 |
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| Sporochnus bolleanus Mont. | M. A. Howe 14 | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2274471 |
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| Sporochnus bolleanus Mont. | M. A. Howe 14 | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2274476 |
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| Dictyopteris justii J.V.Lamour. | M. A. Howe 15 | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2231124 |
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| Ulva intestinalis L. | M. A. Howe 16 | 28 Feb 1911 | Mexico | Baja California | — | 2139401 |
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| Anthoceros pearsonii M.Howe | M. A. Howe 16 | 07 May 1892 | United States of America | California | Marin Co. Mill Valley | — | 253464 |
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| Cladophora longicellulata C.Hoek | M. A. Howe 16 | 05 Jun 1900 - 07 Jul 1900 | Bermuda | — | Paget Parish, South Beach, washed… | — | 2129475 |
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| Polysiphonia opaca (C.Agardh) Moris & De Not. | M. A. Howe 17 | 07 Jun 1900 | Bermuda | Paget | South Beach, in tide-pools | — | 2187940 |
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| Polysiphonia olneyi Harv. | M. A. Howe 18 | 08 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2187840 |
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| Polysiphonia olneyi Harv. | M. A. Howe 18 | 08 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2187855 |
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| Ceramium tenuissimum J.Agardh | M. A. Howe 18 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2173374 |
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| Cladonia squamosa Hoffm. | M. A. Howe 19 | 27 Jul 1895 | United States of America | Vermont | Windham Co. Newfane | — | 1537969 |
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| Chaetomorpha tortuosa Kütz. | M. A. Howe 19 | 06 Jun 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2119095 |
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| Polysiphonia olneyi Harv. | M. A. Howe 19 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2187850 |
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| Zonaria variegata (J.V.Lamour.) C.Agardh | M. A. Howe 20 | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2283761 |
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| Polysiphonia olneyi Harv. | M. A. Howe 20 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2187916 |
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| Champia parvula (C.Agardh) Harv. | M. A. Howe 21 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. in the vicinity… | — | 2176590 |
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| Champia parvula (C.Agardh) Harv. | M. A. Howe 21 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. in the vicinity… | — | 2176591 |
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| Anadyomene stellata (Wulfen) C.Agardh | M. A. Howe 21 | 05 Jun 1900 - 07 Jul 1900 | Bermuda | — | Hamilton Harbor, Paget shore | — | 2024199 |
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| Zonaria zonalis (J.V.Lamour.) M.Howe | M. A. Howe 22 | 05 Jun 1900 - 07 Jul 1900 | Bermuda | — | Paget Parish, South Beach, washed… | — | 2283828 |
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| Sargassum fluitans (Børgesen) Børgesen | M. A. Howe 24 | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2272688 |
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| Sargassum natans (L.) Gaillon | M. A. Howe 24 | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2272999 |
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| Ochrolechia upsaliensis (L.) A.Massal. | M. A. Howe 25 | 24 Jul 1894 - 10 Aug 1894 | United States of America | California | Siskiyou Co. | — | 1708700 |
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| Ochrolechia upsaliensis (L.) A.Massal. | M. A. Howe 25 | 24 Jul 1894 - 10 Aug 1894 | United States of America | California | Siskiyou Co. | — | 1708709 |
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| Ochrolechia upsaliensis (L.) A.Massal. | M. A. Howe 25 | 24 Jul 1894 - 10 Aug 1894 | United States of America | California | Siskiyou Co. | — | 1708710 |
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| Polysiphonia opaca (C.Agardh) Moris & De Not. | M. A. Howe 25 | 07 Jun 1900 | Bermuda | Paget | South Beach, in tide-pools | — | 2187949 |
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| Radula complanata (L.) Dumort. | M. A. Howe 26 | 11 Jan 1894 | United States of America | California | Marin Co. Olema | — | 239910 |
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| Grinnellia americana (C.Agardh) Harv. | M. A. Howe 26 | 09 Aug 1900 | United States of America | Massachusetts | Dukes Co. | — | 2181338 |
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| Cladophora radiosa (Suhr) Kütz. | M. A. Howe 26 a | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2130006 |
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| Callithamnion herveyi M.Howe | M. A. Howe 26 b | 07 Jun 1900 | Bermuda | Paget | South Beach, washed ashore | — | 2156351 |
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