Amaranthaceae GH: 01930357 Gomphrena nitida Rothrock USA: Texas Davis Mts. M. S. Young 1914-8-9
GH: 01930442 Guilleminea lanuginosa (Poiret) Moquin-Tandon ex Bentham & Hooker f. USA: Texas Austin: [no additional data] M. S. Young 20 1918-5-13
Anacardiaceae GH: 01869095 Toxicodendron radicans eximium (Greene) Gillis USA: Texas Goode place, Chisos Mts. M. S. Young 1915
Asclepiadaceae GH: 01083649 Funastrum cynanchoides heterophyllum (Engelmann ex Torrey) Kartesz USA: Texas Davis Mts. M. S. Young 1914-5-13
Asteraceae GH: 02579113 Acourtia wrightii (A. Gray) Reveal & R. M. King USA: Texas In thickets near Baylor Mt., Border of Salt ... M. S. Young 1914-8-6
GH: 02217820 Arida blephariphylla (A. Gray) D. R. Morgan & R. L. Hartman USA: Texas Pine Canyon Guadalupe Mts. M. S. Young 1916-8-14
GH: 00968897 Artemisia dracunculus Linnaeus USA: Texas Near Palo duro Canyon; Llano Estado M. S. Young 1917-9-4
GH: 01923382 Brickellia eupatorioides chlorolepis (Wooten & Standley) B. L. Turner USA: Texas Llano Estacado Near Paloduro Canyon M. S. Young 1917-9-9
GH: 02021556 Cirsium ochrocentrum A. Gray USA: Texas Open valley east of the Guadalupe Mts. M. S. Young 1916-8-21
GH: 02348710 Erigeron glabellus Nuttall USA: Colorado Green Mts M. S. Young 1912-9-24
GH: 02204841 Heterotheca viscida (A. Gray) Harms USA: Texas Davis Mts. M. S. Young 1918-9-13
GH: 02192934 Liatris punctata Hooker USA: Texas Chisos Mts. M. S. Young 1915-8-20
Aytoniaceae FH: 00510595 Ruppina androgyna (M. Howe) Stephani USA: Texas [no additional data] M. S. Young 1914-12
Berberidaceae GH: 02169672 Mahonia trifoliolata (Moricand) Fedde USA: Texas Austin: [no additional data] M. S. Young 1918-3-18
Betulaceae GH: 02194065 Betula nigra Linnaeus USA: Texas of East Texas. M. S. Young 1916-4-13
GH: 02071290 Carpinus caroliniana Walter USA: Texas Kilgore M. S. Young 1916-4-13
GH: 02103215 Ostrya knowltonii Coville USA: Texas near the summit of the mountain. Near Nails ... M. S. Young 1916-8-15
Boraginaceae GH: 01996275 Lithospermum incisum Lehmann USA: Texas Austin: [no additional data] M. S. Young 1918-3-9
Brassicaceae GH: 00974440 Arabis petiolaris (A. Gray) A. Gray USA: Texas Barton Creek Valley. near Austin, Texas M. S. Young 24 1918-4-15
GH: 00986765 Descurainia pinnata (Walter) Britton USA: Texas Austin: [no additional data] M. S. Young 30 1918-3-15
GH: 00986772 Descurainia pinnata (Walter) Britton USA: Texas Austin: [no additional data] M. S. Young 1918-3-15
GH: 01106165 Draba cuneifolia Nuttall ex Torrey & A. Gray USA: Texas Austin: [no additional data] M. S. Young 1918-3-9
GH: 00971658 Draba platycarpa Torrey & A. Gray USA: Texas Austin: [no additional data] M. S. Young 1918
GH: 01546834 Lepidium austrinum Small USA: Texas Austin M. S. Young 31 1918-4-1
GH: 01549580 Lepidium sordidum A. Gray USA: Texas Davis Mts. M. S. Young 1914-8-11
GH: 01549910 Lepidium virginicum medium (Greene) C. L. Hitchcock USA: Texas Austin: Austin M. S. Young 1918-3-18
GH: 01691298 Physaria recurvata (Engelmann ex A. Gray) O'Kane & Al-Shehbaz USA: Texas Austin: Austin M. S. Young 1918-3-25
GH: 01736108 Streptanthus bracteatus A. Gray USA: Texas Mt Bonnell, near Austin M. S. Young 25 1918-5-20
Bromeliaceae GH: 02014183 Hechtia texensis S. Watson USA: Texas Texas, at the great cut of the Rio Grande no... M. S. Young 1915-8-29
Caesalpiniaceae GH: 01676676 Cercis canadensis mexicana (Rose) M. Hopkins USA: Texas Austin: the Edwards Plateau M. S. Young 1919-8-16
GH: 01679780 Senna roemeriana (Scheele) H. S. Irwin & Barneby USA: Texas Austin: Austin M. S. Young 36 1918-5-4
Campanulaceae GH: 01796498 Campanula rotundifolia Linnaeus USA: Texas Davis Mts. M. S. Young 17a 1918-9-15
Caprifoliaceae GH: 02354101 Viburnum rufidulum Rafinesque USA: Texas Austin: [no additional data] M. S. Young 1918-3-27
Caryophyllaceae GH: 01740940 Arenaria benthamii Fenzl ex Torrey & A. Gray USA: Texas Austin: Austin M. S. Young 1915-4-3
GH: 01744466 Drymaria pachyphylla E. O. Wooton & P. C. Standley USA: Texas Salt Basin near Van Horn M. S. Young 1916-9-16
GH: 01714885 Paronychia jamesii Torrey & A. Gray USA: Texas Chisos Mountains M. S. Young 1916-8-13
Celastraceae GH: 01855232 Mortonia sempervirens A. Gray USA: Texas Pine Canyon- Guadalupe Mts M. S. Young 1916-8-14
GH: 01855233 Mortonia sempervirens A. Gray USA: Texas Pine Canyon, Guadalupe Mts M. S. Young 1916-8-14
Chenopodiaceae GH: 02004904 Allenrolfea occidentalis (S. Watson) Kuntze USA: Texas Salt Basin, west of Delaware Mts. M. S. Young 1916-8-6
GH: 01781560 Blitum nuttallianum Schultes USA: Texas Austin: [no additional data] M. S. Young 19 1918-3-27
GH: 01782849 Chenopodium standleyanum Aellen USA: Texas Austin: Flood plain of Waller Cr., Sidon Har... M. S. Young 1916-10-6
Convolvulaceae GH: 02057499 Evolvulus alsinoides linifolius (Linnaeus) Baker USA: Texas Chisos Mts. M. S. Young 1915-8-30
GH: 02057918 Ipomoea costellata Torrey USA: Texas Davis Mts. M. S. Young 1914-8-13
Cornaceae GH: 01845802 Cornus florida Linnaeus USA: Texas Gallatin M. S. Young 1916-4-11
Cupressaceae GH: 02104855 Juniperus deppeana Steudel USA: Texas in canyon, Davis Mts. M. S. Young 1918-9-9
GH: 02106322 Juniperus scopulorum Sargent USA: Texas Guadalupe Mts. M. S. Young 1916-8-18
Cyperaceae GH: 01930260 Froelichia gracilis (Hooker) Moquin-Tandon USA: Texas Austin: along railroad M. S. Young 21 1918-5-13
Euphorbiaceae GH: 00460979 Euphorbia commutata Engelmann ex A. Gray USA: Texas Bartin Creek valley, Austin M. S. Young 61 1918-4-15
Fabaceae GH: 01935390 Amorpha fruticosa Linnaeus USA: Texas Austin: Bank of Barton Cr. M. S. Young 38 1918-4-15
GH: 02052715 Astragalus lindheimeri Engelmann ex A. Gray USA: Texas Austin: Austin M. S. Young 41 1918-4-13
GH: 02030492 Astragalus wrightii A. Gray USA: Texas Austin: University Campus M. S. Young 37 1918-4-12
GH: 01881137 Baptisia nuttalliana Small USA: Texas near Gallatin. in East Texas M. S. Young 1916-4-10
GH: 01881861 Clitoria mariana Linnaeus USA: Texas near Austin M. S. Young 43 1918-5-13
GH: 01885664 Dalea frutescens A. Gray USA: Texas Chisos Mts M. S. Young 1915-8-12
GH: 02128913 Lupinus texensis Hooker USA: Texas Austin: Austin M. S. Young 39 1918-3-25
GH: 02129877 Medicago orbicularis (Linnaeus) Bartalini USA: Texas Austin: Austin M. S. Young 34 1918-5-10
GH: 02133061 Pediomelum linearifolium (Torrey & A. Gray) J. W. Grimes USA: Texas near Paloduro Canyon. Llano Estacado M. S. Young 1917-9-9
GH: 02133129 Pediomelum rhombifolium (Torrey & A. Gray) Rydberg USA: Texas Austin: Austin M. S. Young 40 1918-5-13
GH: 02133952 Psoralidium tenuiflorum (Pursh) Rydberg USA: Texas Davis Mts. M. S. Young 1914-8-12
GH: 02135394 Sophora affinis Torr. & A. Gray USA: Texas Austin: Austin M. S. Young 163 1918-4-3
GH: 02136781 Stylosanthes biflora Britton, Stearn & Poggenburg USA: Texas Near Huntsville M. S. Young 1914-6-1
GH: 02464231 Trifolium mucronatum lacerum (Greene) J. M. Gillett USA: Texas Davis Mts. M. S. Young 1914-8-14
Gentianaceae GH: 02165762 Sabatia campestris Nuttall USA: Texas Alvin M. S. Young 1918-4-22
Geraniaceae GH: 01863987 Geranium caespitosum James USA: Texas Mt. Livermore M. S. Young 1914-8-14
GH: 01864206 Geranium carolinianum Linnaeus USA: Texas Austin: [data not captured] M. S. Young 1918-3-25
GH: 01864223 Geranium carolinianum Linnaeus USA: Texas Austin: [data not captured] M. S. Young 1918-3-25
Hydrangeaceae GH: 01750765 Fendlera falcata Thornber ex Wooton & Standley USA: Texas Guadalupe Mts. M. S. Young 1916-8-19
Iridaceae GH: 01750286 Sisyrinchium pruinosum E. P. Bicknell USA: Texas Austin: [no additional data] M. S. Young 1918-3-22
Juncaceae GH: 02102026 Juncus diffusissimus Buckley USA: Texas near Huntsville M. S. Young 1914-6
Krameriaceae GH: 01788511 Krameria lanceolata Torrey USA: Texas Austin: [no additional data] M. S. Young 1918-5-24
GH: 01788535 Krameria lanceolata Torrey USA: Texas near Pine Spring. Guadalupe Mts. M. S. Young 1916-8-15
Lamiaceae GH: 01555003 Agastache pallidiflora havardii (A. Gray) R. W. Sanders USA: Texas Fort Davis: [no additional data] M. S. Young 132 1918-9-15
GH: 01554989 Hedeoma costatum pilchella (Greene) R. S. Irving USA: Texas Chisos Mts. M. S. Young 1915-8-14
GH: 01553211 Hedeoma hispidum Pursh USA: Texas Houston: Harrisburg M. S. Young 1918-4-22
GH: 01553244 Hedeoma mollis Torrey USA: Texas Chisos Mts. M. S. Young 1915-8-9
GH: 01599445 Monarda pectinata Nuttall USA: Texas Davis Mts. M. S. Young 1918-9-9
GH: 02466792 Monarda punctata Linnaeus USA: Texas Austin: Colorado river flood plain. M. S. Young 1910-5-22
GH: 01696702 Salvia texana (Scheele) Torrey USA: Texas Austin: Mt. Bonnell M. S. Young 1915-4-15
Lentibulariaceae GH: 01974688 Utricularia cornuta Michaux USA: Texas Near Huntsville. Nelson Cr. M. S. Young 1914-6-4
Lobeliaceae GH: 01797682 Lobelia cardinalis Linnaeus USA: Texas Head of branch of Paloduro Canyon. Llano Est... M. S. Young 1917-9-9
GH: 01797949 Lobelia fenestralis Cavanilles USA: Texas Fort Davis: [no additional data] M. S. Young 1918-9-10
GH: 01797950 Lobelia fenestralis Cavanilles USA: Texas Fort Davis: bed of Limpia Cr. M. S. Young 3 1910-9-4
Malvaceae GH: 02070871 Abutilon fruticosum Guillaumin & Perrottet USA: Texas Austin: [no additional data] M. S. Young 92 1918-4-12
GH: 02202267 Callirhoe involucrata (Torrey & A. Gray) A. Gray USA: Texas Alvin M. S. Young 175 1918-4-22
GH: 02202266 Callirhoe involucrata (Torrey & A. Gray) A. Gray USA: Texas Austin: [no additional data] M. S. Young 90 1918-4-10
GH: 02202460 Callirhoe pedata (Nuttall ex Hooker) A. Gray USA: Texas Austin: [no additional data] M. S. Young 89 1918-5-1
GH: 02201997 Malvastrum coromandelianum (Linnaeus) Garcke USA: Texas Austin: [no additional data] M. S. Young 1915-11-5
GH: 02200433 Sida abutilifolia Miller USA: Texas University Campus Moric. M. S. Young 91 1919-4-5
GH: 02199379 Sphaeralcea angustifolia (Cavanilles) G. Don USA: Texas Chisos Mts. M. S. Young 1918-8-11
Mimosaceae GH: 01786781 Leucaena retusa Bentham USA: Texas Pine Canyon. Chisos Mts. M. S. Young 1915-9-6
Moraceae GH: 01545259 Morus microphylla Buckley USA: Texas in Edwards Plateau, near Austin M. S. Young 15 1918-5-20
Nyctaginaceae GH: 01641065 Boerhavia coulteri palmeri (S. Watson) Spellenberg USA: Texas Rio Grande, Big Bend, near Chisos Mts. M. S. Young 1915-8-26
GH: 01641279 Boerhavia intermedia M. E. Jones USA: Texas Rio Grande, Big Bend, near Chisos Mts. Tex. M. S. Young 1915-8-26
GH: 01641325 Boerhavia linearifolia A. Gray USA: Texas foothills of Chenate Mts. M. S. Young 1914-9-11
GH: 01846300 Mirabilis multiflora (Torrey) A. Gray USA: New Mexico Sacramento Mts. M. S. Young 1916-7-31
Oleaceae GH: 01847489 Forestiera pubescens Nuttall USA: Texas Oalo duno Canyon M. S. Young 1915-9
GH: 01848313 Fraxinus berlandieriana A. de Candolle USA: Texas Austin: [no additional data] M. S. Young 1918-5-20
GH: 01848317 Fraxinus berlandieriana A. de Candolle USA: Texas Onion Creek near Austin M. S. Young 1918-5-17
GH: 01850408 Fraxinus velutina Torrey USA: Texas Mouth of Pine Canyon. Guadalupe Mts. M. S. Young 1916-8-14
GH: 01850409 Fraxinus velutina Torrey USA: Texas Fort Davis: [no additional data] M. S. Young 1918
GH: 01850714 Menodora heterophylla Moricand ex A. de Candolle USA: Texas Austin: University Campus M. S. Young 1918-3-22
GH: 01850753 Menodora longiflora Engelmann ex A. Gray USA: Texas Davis Mts. M. S. Young 1914-8-28
GH: 01850761 Menodora longiflora Engelmann ex A. Gray USA: Texas Lower slopes of Guadalupe Mts M. S. Young 1916-8-28
GH: 01850838 Menodora scabra A. Gray USA: Texas Guadalupe Mts M. S. Young 1916
Onagraceae GH: 01624597 Calylophus drummondianus berlandieri (Spach) Towner & P. H. Raven USA: Texas Austin: Austin M. S. Young 100 1918-4-10
GH: 01624598 Calylophus drummondianus berlandieri (Spach) Towner & P. H. Raven USA: Texas Austin: Austin M. S. Young 99 1918-5-4
GH: 01624601 Calylophus drummondianus berlandieri (Spach) Towner & P. H. Raven USA: Texas Austin: Austin M. S. Young 1918-5-4
GH: 00054121 Gaura australis Grisebach USA: Texas Austin: M. S. Young 95 1918-4-8
GH: 01777966 Gaura drummondii Torrey & A. Gray USA: Texas Austin: Austin M. S. Young 97 1918-5-15
GH: 00054121 Gaura parviflora Douglas USA: Texas Austin: M. S. Young 95 1918-4-8
GH: 00054121 Gaura parviflora lachnocarpa Weatherby USA: Texas Austin: M. S. Young 95 1918-4-8
GH: 01643824 Oenothera speciosa Nuttall USA: Texas Austin: Austin M. S. Young 96 1918-4-12
GH: 01642034 Oenothera triloba Nuttall USA: Texas Austin: Austin M. S. Young 98 1918-3-25
GH: 01642237 Stenosiphon linifolius (Nuttall ex E. James) Heynhold USA: Texas Branch of Paloduro Canyon. Llano Estacado M. S. Young 1917-9-7
Orchidaceae AMES: 02031910 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Texas Nelson Cr. near Huntsville M. S. Young 1914
AMES: 01883976 Hexalectris grandiflora (A. Richard & Galeotti) L. O. Williams USA: Texas Cañon, Mt. Livermore, Davis Mts M. S. Young 4479 1914-8-21
AMES: 01883976 Hexalectris warnockii Ames & Correll USA: Texas Cañon, Mt. Livermore, Davis Mts M. S. Young 4479 1914-8-21
Orobanchaceae GH: 02183039 Seymeria scabra A. Gray USA: Texas Chisos Mts. M. S. Young 1915-8
Oxalidaceae GH: 01585604 Oxalis latifolia Kunth USA: Texas Chisos mts. M. S. Young 1915-9-14
Phyllanthaceae GH: 01971604 Phyllanthus polygonoides Nuttall ex Sprengel USA: Texas Austin: [no additional data] M. S. Young 56 1918
Polemoniaceae GH: 01000954 Giliastrum rigidulum (Bentham) Rydberg USA: Texas near Austin M. S. Young 1915-4-20
Polygalaceae GH: 01970056 Polygala barbeyana Chodat USA: Texas Limpia Canyon M. S. Young 1914-4-14
GH: 01970078 Polygala barbeyana Chodat USA: Texas West Texas; Chisos Mts. M. S. Young 1915
GH: 01970972 Polygala incarnata Linnaeus USA: Texas Near Huntsville M. S. Young 1916
GH: 01969821 Polygala polygama Walter USA: Texas Near Huntsville M. S. Young 1914-6-3
Polygonaceae GH: 01618008 Eriogonum abertianum Torrey USA: Texas Davis Mts. M. S. Young 1910-8-13
GH: 01618039 Eriogonum alatum Torrey USA: Colorado Green Mountain Falls M. S. Young
GH: 01618295 Eriogonum annuum Nuttall USA: Texas Llano Estacado M. S. Young 1917-9-7
GH: 01652867 Eriogonum hemipterum (Torrey) S. Stokes USA: Texas Chisos Mts. M. S. Young 1915-9-10
GH: 01851285 Eriogonum jamesii Bentham USA: New Mexico near High Rolls; Sacramento Mts. M. S. Young 1916-7-31
GH: 01851401 Eriogonum jamesii wootonii Reveal USA: New Mexico Cloud Croft, Sacramento Mts. M. S. Young 1916
GH: 02006528 Rumex altissimus Alph. Wood USA: Texas Austin: [no additional data] M. S. Young 18 1918-4-8
Pontederiaceae GH: 01919249 Heteranthera limosa Willdenow USA: Texas near Paloduno Canyon, Llano Estacado M. S. Young 1919-9-12
Portulacaceae GH: 01928020 Talinopsis frutescens A. Gray USA: Texas Davis Mts. M. S. Young 282 1914-8-28
GH: 01928231 Talinum parviflorum Nuttall USA: Texas Chisos Mts. M. S. Young 1915-8-15
GH: 01928232 Talinum parviflorum Nuttall USA: Texas Chisos Mts. M. S. Young 1915-8-15
Primulaceae GH: 01920181 Hottonia inflata Elliott USA: Texas [no additional data] M. S. Young 1916-7-13
Ranunculaceae GH: 01706273 Anemone berlandieri Pritzel USA: Texas Austin: Austin M. S. Young 23 1918-4-3
GH: 01657262 Clematis texensis Buckley USA: Texas Edwards Plateau, near Austin M. S. Young 22 1918-5-17
Rhamnaceae GH: 01789872 Ceanothus herbaceus Rafinesque USA: Texas Near Austin M. S. Young 1918
GH: 01790547 Colubrina texensis (Torrey & A. Gray) A. Gray USA: Texas Austin: Edwards Plateau M. S. Young 1914-4-22
GH: 01972267 Frangula purshiana (de Candolle) A. Gray USA: Texas Chisos Mts. M. S. Young 1915-8-17
Rosaceae GH: 01587506 Cercocarpus montanus argenteus (Rydberg) F. L. Martin USA: Texas Llano Estacado Paloduro Canyon M. S. Young 1919-9-10
GH: 01587903 Cercocarpus montanus paucidentatus (S. Watson) F. L. Martin USA: Texas Chisos Mts. M. S. Young 1915-8-18
GH: 01606133 Fallugia paradoxa (D. Don) Endlicher USA: Texas Foothills of the Chisos Mts. M. S. Young 1916-8-12
GH: 00026502 Geum canadense texanum Fernald & Weatherby USA: Texas Onion Creek near Austin M. S. Young 161 1918-5-17
GH: 01722699 Prunus mexicana S. Watson USA: Texas in Edwards Plateau, near Austin M. S. Young 33 1918-4-15
Rubiaceae GH: 02355970 Arcytophyllum fasciculatum (A. Gray) Terrell & H. Robinson USA: Texas Chisos Mts M. S. Young 1915-8-8
GH: 02140659 Galium virgatum Nuttall USA: Texas Austin: University campus M. S. Young 1915
GH: 02140727 Galium wrightii A. Gray USA: Texas Davis Mts. M. S. Young 1918-9-12
GH: 02140726 Galium wrightii A. Gray USA: Texas Davis Mts. M. S. Young 1914-8-13
GH: 02140719 Galium wrightii A. Gray USA: Texas Chisos Mts. M. S. Young 1915-8-13
GH: 02354458 Houstonia acerosa (A. Gray) Bentham & Hooker f. USA: Texas near the Chisos Mts Tex. M. S. Young 1915
Rutaceae GH: 01545741 Choisya dumosa (Torrey) A. Gray USA: Texas Guadalupe Mts. M. S. Young 1916-8-18
GH: 01584411 Ptelea trifoliata mollis Torrey & A. Gray USA: Texas Austin: Shoal Creek Valley M. S. Young 60 1918-4-13
GH: 01584597 Thamnosma texanum (A. Gray) Torrey USA: Texas of the Edwards Plateau near Austin M. S. Young 44 1918-5-20
GH: 01584911 Zanthoxylum hirsutum Buckley USA: Texas Austin: Austin M. S. Young 46 1918-5-2
Sapindaceae GH: 01870175 Ungnadia speciosa Endlicher USA: Texas Austin: [no additional data] M. S. Young 1918-3-22
Saxifragaceae GH: 01735362 Heuchera leptomeria Greene USA: Texas Guadalupe Mts. M. S. Young 1916-8-18
Solanaceae GH: 00939262 Lycium berlandieri Dunal USA: Texas Foothills of Chenate Mts. M. S. Young 1914-9-8
GH: 01563089 Nicotiana glauca Graham USA: Texas Banks of the Rio Grande, Big Bend near San V... M. S. Young 1918-8-27
GH: 01563198 Nicotiana obtusifolia Mertens & Galeotti USA: Texas Davis Mountains M. S. Young 1918-9-5
Urticaceae GH: 02170645 Parietaria pensylvanica Muhlenberg ex Willdenow USA: Texas Austin: [no additional data] M. S. Young 1916-5-24
GH: 02171064 Urtica chamaedryoides Pursh USA: Texas Onion Creek, near Austin M. S. Young 16 1918-5-17
Verbenaceae GH: 01953060 Glandularia pumila (Rydberg) Umber USA: Texas Austin: [no additional data] M. S. Young 1918-3-9
GH: 01953575 Phyla cuneifolia (Torrey) Greene USA: Texas Llano Estacado. M. S. Young 1917-9-12
Violaceae GH: 02144531 Hybanthus verticillatus (Ortega) Baillon USA: Texas Austin: University Campus M. S. Young 94 1918-4-1
GH: 02211509 Viola sororia missouriensis (Greene) L. E. McKinney USA: Texas Troup M. S. Young 1916-4-12
Zygophyllaceae GH: 01788066 Larrea tridentata (de Candolle) Coville USA: Texas on the sandy borders of Salt Balin, near Ken... M. S. Young 1916
