Displaying 1 - 50 out of 171 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Rauvolfia tetraphylla L. | M. E. Mathias 369 | 10 Jul 1967 | Costa Rica | Guanacaste | Along lower road at Finca… | — |
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| Mimosa pigra L. | M. E. Mathias 318 | 02 Jul 1967 - 07 Jul 1967 | Costa Rica | Guanacaste | Playas del Coco, west of… | — |
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| Coreocarpus parthenioides Benth. var. parthenioides | M. E. Mathias 12548 | 19 Apr 1958 | Mexico | Baja California | 1.9 km E of Rancho… | — |
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| Hydrocotyle pusilla A.Rich. | M. E. Mathias 3612 | 05 Jul 1959 | Peru | San Martín | Pr. Mariscal Caceres. On road… | — | ||||
| Abuta mycetandra Krukoff & Barneby | M. E. Mathias 5604 | 19 Jul 1961 | Peru | Loreto | Vicinity of Requena. Fundo Palencia… | holotype |
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| Zamia macrochiera D.W.Stev. | M. E. Mathias s.n. | 1985 | Peru | — | — | |||||
| Zamia macrochiera D.W.Stev. | M. E. Mathias s.n. | 1985 | Peru | — | — | |||||
| Chondrodendron tomentosum Ruiz & Pav. | M. E. Mathias 3939 | 24 Jul 1959-30 Jul 1959 | Peru | Loreto | Down river from Yurimaguas | — | ||||
| Chondrodendron tomentosum Ruiz & Pav. | M. E. Mathias 3938 | 24 Jul 1959-30 Jul 1959 | Peru | Loreto | Down river from Yurimaguas | — | ||||
| Chondrodendron tomentosum Ruiz & Pav. | M. E. Mathias 3932 | 24 Jul 1959-30 Jul 1959 | Peru | Loreto | Down river from Yurimaguas | — | ||||
| Stigmaphyllon mathiasiae W.R.Anderson | M. E. Mathias 6078 | 31 Jul 1962 | Peru | Loreto | Pucallpa-Aguaytía road, Km. 34 west… | isotype |
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| Curarea tecunarum Barneby & Krukoff | M. E. Mathias 5010 | 28 Jun 1960 | Peru | — | San Martín-Loreto: vicinity of Aguaytía.… | — |
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| Curarea tecunarum Barneby & Krukoff | M. E. Mathias 5004 | 28 Jun 1960 | Peru | — | San Martín-Loreto: vicinity of Aguaytía.… | — |
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| Curarea tecunarum Barneby & Krukoff | M. E. Mathias 5088 | 01 Jul 1960 | Peru | — | San Martín-Loreto: vicinity of Aguaytía.… | — |
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| Curarea tecunarum Barneby & Krukoff | M. E. Mathias 5018 | 28 Jun 1960 | Peru | — | San Martín-Loreto: vicinity of Aguaytía.… | — |
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| Curarea tecunarum Barneby & Krukoff | M. E. Mathias 3524 | 02 Jul 1959 | Peru | — | San Martín-Loreto: vicinity of Aguaytía.… | — |
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| Curarea tecunarum Barneby & Krukoff | M. E. Mathias 3555 | 03 Jul 1959 | Peru | — | San Martín-Loreto: Woods south of… | — |
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| Chondrodendron tomentosum Ruiz & Pav. | M. E. Mathias 6112 | 06 Aug 1962 | Peru | San Martín | Santa Margarita, high ground west… | — | ||||
| Chondrodendron tomentosum Ruiz & Pav. | M. E. Mathias 5391 | 24 Jun 1961 | Peru | Huánuco | Vicinity of Tingo María. Ca.… | — | ||||
| Sphaeralcea munroana (Douglas ex Lindl.) Spach ex A.Gray | M. E. Mathias 781 | 15 Aug 1929 | United States of America | Idaho | Along the highway near Twin… | — |
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| Cogswellia minima Mathias | M. E. Mathias 670 | 18 Jul 1929 | United States of America | Utah | Near the hotel, dry slopes… | type fragment |
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| Polytrichastrum alpinum (Hedw.) G.L.Sm. | M. E. Mathias 202a | 22 Jul 1927 | United States of America | Vermont | Orange Co. Eagle Bluff, Fairlee | — | ||||
| Lepiota cristata (Bolton:Fr.) P.Kumm. | M. E. Mathias | 05 Oct 1955 | United States of America | Kansas | Riley Co. KSC Campus | — | ||||
| Penstemon barbatus var. torreyi (Benth.) A.Gray | M. E. Mathias 493 | 29 Jun 1929 | United States of America | Colorado | Along the road near Morley | — |
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| Pseudotsuga menziesii var. glauca (Beissn.) Franco | M. E. Mathias 440 | 22 Jun 1929 | United States of America | Colorado | Aspen-glen Camp, Fall River Road,… | — |
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| Eriogonum cernuum Nutt. var. cernuum | M. E. Mathias 656 | 14 Jul 1929 | United States of America | Arizona | Kaibab Plateau, near Jacob's Lake | — |
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| Lomatium ciliolatum var. hooveri Mathias & Constance | M. E. Mathias 1298 | 23 May 1937 | United States of America | California | Napa Co. 1.9 mile southeast… | isotype |
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| Calliergonella curvifolia (Hedw.) B.H.Allen | M. E. Mathias | 23 Mar 1929 | United States of America | Missouri | Near St. Francis | — | ||||
| Pohlia nutans (Hedw.) Lindb. | M. E. Mathias | 27 Apr 1927 | United States of America | Missouri | Saint Louis Co. Cliff Cave | — | ||||
| Rubus parviflorus f. paratrichophorus Fassett | M. E. Mathias 1389 | 07 Aug 1938 | United States of America | California | Monterey Co. Under Sequoia sempervirens,… | isotype |
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| Rubus parviflorus f. paratrichophorus Fassett | M. E. Mathias 1389 | 07 Aug 1938 | United States of America | California | Monterey Co. Under Sequoia sempervirens,… | — | ||||
| Nemophila pedunculata Douglas ex Benth. | M. E. Mathias 1374 | 15 May 1938 | United States of America | Nevada | Douglas Co. Recreation Stop 7… | — |
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| Cymopterus lemmonii (J.M.Coult. & Rose) Dorn | M. E. Mathias 713 | 19 Jul 1929 | United States of America | Utah | Cedar Breaks, near Cedar City. | — |
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| Astragalus bisulcatus (Hook.) A.Gray var. bisulcatus | M. E. Mathias 344 | 19 Jun 1929 | United States of America | Colorado | Roadside, between Sterling and Ft.… | — |
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| Astragalus racemosus Pursh var. racemosus | M. E. Mathias 314 | 18 Jun 1929 | United States of America | Nebraska | Furnas Co. Along highway 30… | — |
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| Mimosa nuttallii (DC.) B.L.Turner | M. E. Mathias 315 | 18 Jun 1929 | United States of America | Nebraska | Along highway 30 miles east… | — |
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| Carex convoluta Mack. | M. E. Mathias 108 | 26 Jun 1927 | United States of America | Vermont | Orange Co. Aloha Camp | — |
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| Carex merritt-fernaldii Mack. | M. E. Mathias 149 | 06 Jul 1927 | United States of America | Vermont | Orange Co. Palisades | — |
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| Carex | M. E. Mathias 224 | 28 Jul 1927 | United States of America | New Hampshire | Beaver Brook Trail, Mt. Moosilauke. | — |
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| Rumex acetosella L. | M. E. Mathias 146 | 06 Jul 1927 | United States of America | Vermont | Orange Co. Palisades | — |
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| Diervilla lonicera Mill. | M. E. Mathias 116 | 26 Jun 1927 | United States of America | Vermont | Orange Co. Aloha Camp | — |
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| Diervilla lonicera Mill. | M. E. Mathias 175 | 09 Jul 1927 | United States of America | New Hampshire | Black Mt., near Pike | — |
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| Ficus minahassae (Teijsm. & de Vriese) Miq. | M. E. Mathias 2197 | 30 Sep 1948 | United States of America | California | Los Angeles Co. Botanical Garden,… | — |
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| Ficus gnaphalocarpa (Miq.) Steud. ex Miq. | M. E. Mathias 2199 | 30 Sep 1948 | United States of America | California | Los Angeles Co. Botanical Garden,… | — |
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| Ficus hispida L.f. | M. E. Mathias 2198 | 30 Sep 1948 | United States of America | California | Los Angeles Co. Botanical Garden,… | — |
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| Ficus ingens (Miq.) Miq. | M. E. Mathias 638 | 9-30-48 | United States of America | California | Los Angeles Co. Botanical Garden,… | — |
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| Ficus lacor Buch.-Ham. | M. E. Mathias 2200 | 04 Oct 1948 | United States of America | California | Los Angeles Co. Vavra Estate,… | — |
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| Ficus macrophylla Desf. ex Pers. | M. E. Mathias 2206 | 04 Oct 1948 | United States of America | California | Los Angeles Co. Above driveway… | — |
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| Ficus mysorensis B.Heyne ex Roth | M. E. Mathias 2209 | 04 Oct 1948 | United States of America | California | Los Angeles Co. Driveway, Vavra… | — |
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| Ficus nekbudu Warb. | M. E. Mathias 2204 | 30 Sep 1948 | United States of America | California | Los Angeles Co. Botanical Garden,… | — |
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