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GH: 01065068 [bad data, blank import] USA: Massachusetts North Worcester E. L. Horr 1917-8-25
FH: 01141438 Alectoria chalybeiformis (Linnaeus) Gray USA: Massachusetts Worcester: [no additional data] E. L. Horr 1906-1
FH: 01139417 Peltigera aphthosa (Linnaeus) Willdenow USA: Massachusetts Millbury: [no additional data] E. L. Horr 1913-3
Aquifoliaceae
GH: 00767958 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-10
GH: 00767959 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-10
GH: 00767960 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-10
GH: 00767961 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-10
Aspidiaceae
GH: 00627700 Polystichum acrostichoides (Michaux) Schott USA: Massachusetts Spencer: Spencer E. L. Horr 1908
Asteraceae
GH: 00574484 Eurybia macrophylla (Linnaeus) Cassini USA: Massachusetts Worcester: Worcester E. L. Horr 1909-8-12
GH: 00574486 Eurybia macrophylla (Linnaeus) Cassini USA: Massachusetts Worcester: Worcester E. L. Horr 1909-8-12
GH: 00735246 Grindelia squarrosa (Pursh) Dunal USA: Massachusetts Worcester: Worcester E. L. Horr 1913-9-10
GH: 00587869 Hieracium piloselloides Villars USA: Massachusetts Worcester: Worcester E. L. Horr 1911-6-11
GH: 00576029 Onopordum acanthium Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-27
GH: 00576030 Onopordum acanthium Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-10
GH: 00576031 Onopordum acanthium Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1913-7-27
GH: 00011020 Perezia aletes J. F. Macbride USA: Massachusetts North Worcester E. L. Horr 1918-4-9
GH: 01079955 Solidago aestivalis E. P. Bicknell USA: Massachusetts North Worcester E. L. Horr 1917-8-25
GH: 01064938 Solidago uliginosa Nuttall USA: Massachusetts Worcester: Worcester E. L. Horr 1906-8-15
Bartramiaceae
FH: 00516927 Bartramia pomiformis Hedwig USA: Massachusetts Tatnuck: [no additional data] E. L. Horr 1906-1-28
Boraginaceae
GH: 00716750 Lappula occidentalis (S. Watson) Greene USA: Maine North Worcester E. L. Horr 1918
Brassicaceae
GH: 00932451 Boechera holboelii (Hornemann) A. Löve & D. Löve USA: Massachusetts Worcester: No. Worcester E. L. Horr 1918-5
GH: 00592741 Camelina microcarpa Andrzejowski ex de Candolle USA: Massachusetts North Worcester E. L. Horr 1918
Cladoniaceae
FH: 01139998 Cladonia furcata (Hudson) Schrader USA: Massachusetts Worcester: [no additional data] E. L. Horr 1906-1
Climaciaceae
FH: 00538790 Climacium americanum Bridel USA: Massachusetts Sudbury: [no additional data] E. L. Horr 1905-11
Cyperaceae
GH: 00218675 Carex brunnescens (Persoon) Poiret USA: Massachusetts Worcester: E. L. Horr 1916-6-2
NEBC: 00229238 Carex debilis rudgei L. H. Bailey USA: Massachusetts Worcester: E. L. Horr 1916-5-22
Dicranaceae
FH: 00791523 Dicranum scoparium Hedwig USA: Massachusetts Worcester: [data not captured] E. L. Horr 1905-12
FH: 00898445 Paraleucobryum fulvum (Hooker) Loeske USA: Massachusetts Worcester: [no additional data] E. L. Horr 1906-1-28
Dryopteridaceae
GH: 00636099 Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray USA: Massachusetts Leicester: Leicester E. L. Horr 1911-7-12
GH: 00636100 Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray USA: Massachusetts Leicester: Leicester E. L. Horr 1910-6-15
GH: 00634164 Dryopteris triploidea Wherry USA: Massachusetts Leicester: Leicester E. L. Horr 1911-7-12
GH: 00634165 Dryopteris triploidea Wherry USA: Massachusetts Leicester: Leicester E. L. Horr 1911-7-12
Dysphaniaceae
GH: 00685999 Dysphania multifida (Linnaeus) Mosyakin & Clemants USA: Massachusetts Worcester: Worcester E. L. Horr 1912-9-11
Entodontaceae
FH: 00850244 Pleurozium schreberi (Willdenow ex Bridel) Mitten USA: Massachusetts South Sudbury: [no additional data] E. L. Horr 1905-8
Hypnaceae
FH: 00800087 Callicladium haldaneanum (Greville) H. A. Crum USA: Massachusetts Worcester: [data not captured] E. L. Horr 1906-10-21
FH: 00800098 Callicladium haldaneanum (Greville) H. A. Crum USA: Massachusetts Leicester: [no additional data] E. L. Horr 1906-10-28
FH: 00800115 Callicladium haldaneanum (Greville) H. A. Crum USA: Massachusetts Leicester: [no additional data] E. L. Horr 1906-10-28
FH: 00920783 Pylaisiella selwynii (Kindberg) H. A. Crum, Steere & L. E. Anderson USA: Massachusetts Princeton: [no additional data] E. L. Horr 1912-2-4
Lamiaceae
GH: 00602477 Salvia nemorosa Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1913-6-11
Lycopodiaceae
GH: 00743533 Dendrolycopodium obscurum (Linnaeus) A. Haines USA: Massachusetts Worcester: Worcester E. L. Horr 1908-10-29
Lythraceae
GH: 00576261 Lythrum salicaria Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1908
Onagraceae
GH: 01645845 Oenothera elata hirsutissima (A. Gray ex S. Watson) W. Dietrich USA: Massachusetts Worcester: North Worcester E. L. Horr 1920-09-04
Orthotrichaceae
FH: 00885800 Ulota crispa (Hedwig) Bridel USA: Massachusetts Worcester: [data not captured] E. L. Horr 1906-1
Parmeliaceae
FH: 01141595 Usnea angulata Acharius USA: Massachusetts South Sudbury: [no additional data] E. L. Horr 1906-1
Plantaginaceae
GH: 00582145 Plantago aristata Michaux USA: Massachusetts Worcester: Worcester E. L. Horr 1918
GH: 01783947 Veronica teucrium Linnaeus USA: Massachusetts Boylston: [no additional data] E. L. Horr 1910-6-8
Poaceae
GH: 00583769 Poa pratensis Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 2 1916-6-15
GH: 00595524 Poa pratensis angustifolia (Linnaeus) Lejeune USA: Massachusetts Worcester: Worcester E. L. Horr 2 1916-6-15
Polytrichaceae
FH: 00917632 Polytrichastrum ohioense (Renauld & Cardot) G. L. Smith USA: Massachusetts Worcester: [no additional data] E. L. Horr 1906-7
FH: 00917633 Polytrichastrum ohioense (Renauld & Cardot) G. L. Smith USA: Massachusetts Worcester: [no additional data] E. L. Horr 1906-7
FH: 00917969 Polytrichum commune Hedwig USA: Massachusetts Worcester: [data not captured] E. L. Horr 1906-5-15
FH: 00917971 Polytrichum commune Hedwig USA: Massachusetts Worcester: [data not captured] E. L. Horr 1905-6-9
FH: 00917973 Polytrichum commune Hedwig USA: Massachusetts Worcester: [data not captured] E. L. Horr
FH: 00918496 Polytrichum juniperinum Hedwig USA: Massachusetts Worcester: [data not captured] E. L. Horr 1905-11-5
FH: 00918861 Polytrichum juniperinum affine (Funck) Bridel USA: Massachusetts Worcester: [no additional data] E. L. Horr 1906-11
FH: 00919160 Polytrichum piliferum Hedwig USA: Massachusetts Worcester: [data not captured] E. L. Horr 1905-11
FH: 00919174 Polytrichum piliferum Hedwig USA: Massachusetts Hudson: [no additional data] E. L. Horr 1913-4-19
Ranunculaceae
GH: 00580590 Ranunculus repens Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1911-9-10
GH: 00697808 Thalictrum thalictroides (Linnaeus) A. J. Eames & B. Boivin USA: Massachusetts Worcester: Worcester E. L. Horr 1918-6-1
Rhytidiaceae
FH: 00900820 Rhytidiadelphus triquetrus (Hedwig) Warnstorf USA: Massachusetts Worcester: [data not captured] E. L. Horr 1906-10
FH: 00900822 Rhytidiadelphus triquetrus (Hedwig) Warnstorf USA: Massachusetts Worcester: [data not captured] E. L. Horr 1906-10
Rosaceae
GH: 00768339 Crataegus macracantha Loddiges ex Loudon USA: Massachusetts Worcester: Worcester E. L. Horr 1909-6-10
Salicaceae
GH: 00769475 Salix humilis tristis (Aiton) Griggs USA: Massachusetts Uxbridge: Uxbridge E. L. Horr 1909
Solanaceae
GH: 00598580 Nicotiana rustica Linnaeus USA: Massachusetts Worcester: Worcester E. L. Horr 1912-10-7
Sphagnaceae
FH: 00922941 Sphagnum imbricatum affine (Renauld & Cardot) Warnstorf USA: Massachusetts Worcester: [data not captured] E. L. Horr 1909-11-11
Thuidiaceae
FH: 01133825 Thuidium delicatulum (Hedwig) Schimper USA: Massachusetts Leicester: [no additional data] E. L. Horr 1906-10-28
FH: 01133861 Thuidium delicatulum (Hedwig) Schimper USA: Massachusetts Sudbury: South Sudbury E. L. Horr 1905-11
Violaceae
GH: 00629733 Viola pallens (Banks ex Gingins) Brainerd USA: Massachusetts Worcester: Worcester E. L. Horr 1909-4-26