Araceae GH: 01654158 Arisaema triphyllum (Linnaeus) Schott USA: Arkansas southeast end of Magazine Mt. R. T. Clausen 7657 1949-5-9
GH: 01654215 Arisaema triphyllum (Linnaeus) Schott USA: Minnesota at base of cliffs along south side of North ... R. T. Clausen 7759 1949-6-4
GH: 01655494 Calla palustris Linnaeus USA: New York 1.6 km east of Endicott R. T. Clausen 7884 1949-7-31
Aspleniaceae GH: 01919952 Asplenium platyneuron (Linnaeus) Britton, Sterns & Poggenburg USA: Arkansas Eastern base of Magazine Mt., south of Milla... R. T. Clausen 1949-5-10
GH: 02070181 Asplenium trichomanes Linnaeus USA: Arkansas north-facing cliffs of limestone near southe... R. T. Clausen 7655 1949-5-9
Betulaceae GH: 02194975 Betula papyrifera Marshall USA: Minnesota [data not captured] R. T. Clausen 7763 1949-6-4
GH: 02193590 Betula populifolia Marshall USA: New York [data not captured] R. T. Clausen 7879 1949-7-31
Brassicaceae GH: 01098839 Cardamine clematitis Shuttleworth ex A. Gray USA: Tennessee [data not captured] R. T. Clausen 7737 1949-5-23
GH: 01561508 Draba sp. USA: Minnesota [data not captured] R. T. Clausen 7762 1949-6-4
GH: 01561664 Erysimum asperum de Candolle USA: Arkansas West end of Magazine Mt. R. T. Clausen 7694 1949-5-12
GH: 01687737 Physaria newberryi A. Gray USA: New Mexico Rocky bank along highway to Raton, about 7 m... R. T. Clausen 7826 1949-6-21
Cactaceae GH: 01875861 Opuntia polyacantha Haworth USA: New Mexico valley of Rio Fernando de Taos about 18 km. ... R. T. Clausen 7827 1949-6-21
Caesalpiniaceae GH: 01676171 Cercis canadensis Linnaeus USA: Arkansas north slope of northeast spur of Magazine Mt... R. T. Clausen 7707 1949-5-14
GH: 01679774 Senna roemeriana (Scheele) H. S. Irwin & Barneby USA: Texas 1 mile south of Temple R. T. Clausen 7649 1949-5-6
Crassulaceae GH: 01987552 Echeveria agavoides Lemaire Mexico: Coahuila 1.6 km. north of Chorro Grande R. T. Clausen 7,605 1949-4-23
GH: 01987805 Kalanchoe pinnata (Lamarck) Persoon Mexico: Tamaulipas 3 km. southwest of Encina R. T. Clausen 7412 1949-2-25
GH: 01991032 Lenophyllum acutifolia Haworth Mexico: Nuevo León in small canyon on northern side of Cerro So... R. T. Clausen 7620 1949-4-27
GH: 01991041 Lenophyllum reflexum S. S. White Mexico: Nuevo León La Boca Canyon 3 km. east of Villa Santiago R. T. Clausen 7561 1949-4-11
GH: 01990119 Rhodiola integrifolia Rafinesque USA: New Mexico On south-facing, rocky slope, north side of ... R. T. Clausen 7847 1949-6-24
GH: 01990128 Rhodiola integrifolia leedyi (Rosendahl ex J. W. Moore) H. Ohba USA: Minnesota South side of North Branch of Root River, fa... R. T. Clausen 7760 1949-6-4
GH: 01990129 Rhodiola integrifolia leedyi (Rosendahl ex J. W. Moore) H. Ohba USA: Minnesota South side of North Branch of Root River, fa... R. T. Clausen 7760 1949-6-4
GH: 00042536 Sedum caducum R. T. Clausen Mexico: Tamaulipas Canyon 15 km southwest of Ciudad Victoria, 2... R. T. Clausen 7370 1949-2-13
GH: 01990597 Sedum calcicola B. L. Robinson & Greenman Mexico: Nuevo León In big canyon south of the saddle, Saddle Mo... R. T. Clausen 7573 1949-4-13
GH: 01990598 Sedum calcicola B. L. Robinson & Greenman Mexico: Tamaulipas On south side of canyon 16 km. southwest of ... R. T. Clausen 7378 1949-2-15
GH: 01990601 Sedum calcicola B. L. Robinson & Greenman Mexico: Nuevo León Villa de Garcia R. T. Clausen 7599 1949-4-21
GH: 01990600 Sedum calcicola B. L. Robinson & Greenman USA: New York Ithaca: Greenhouse R. T. Clausen 7599 1949-10-21
GH: 01991324 Sedum cockerellii Britton USA: New Mexico south side of Rio Hondo Canyon 4 km. northea... R. T. Clausen 7853 1949-6-24
GH: 01990624 Sedum diffusum S. Watson Mexico: Nuevo León Below grotto of Villa de Garcia R. T. Clausen 7595 1949-4-21
GH: 01990626 Sedum diffusum S. Watson Mexico: Nuevo León Southern slope of La Boca Canyon 3 km. east ... R. T. Clausen 7544 1949-4-11
GH: 01991347 Sedum diffusum S. Watson USA: New York Ithaca: Greenhouse R. T. Clausen 7,363 1949-10-14
GH: 01990735 Sedum glabrum Praeger Mexico: Coahuila West of Saltillo R. T. Clausen 7612 1949-4-25
GH: 01990499 Sedum hultenii Fröderström Mexico: Canyon of Texcoco River, 1 km. north-northwe... R. T. Clausen 7,472 1949-3-8
GH: 01991425 Sedum integrifolium procerum R. T. Clausen USA: New Mexico north side of Rio Hondo canyon 4 km. below (... R. T. Clausen 7847 1949-6-24
GH: 01990808 Sedum nanifolium Fröderström Mexico: Coahuila West of Chorro Grande and north of spring R. T. Clausen 7607 1949-4-23
GH: 01990852 Sedum palmeri S. Watson Mexico: Nuevo León On south side of canyon on west side of Sier... R. T. Clausen 7568 1949-4-13
GH: 01990851 Sedum palmeri S. Watson Mexico: Nuevo León Exposed to southeast, below grotto, Villa de... R. T. Clausen 7596 1949-4-21
GH: 01990850 Sedum palmeri S. Watson Mexico: Nuevo León On south side of La Boca Canyon, 3 km. east ... R. T. Clausen 7545 1949-4-11
GH: 01991770 Sedum palmeri S. Watson USA: New York Ithaca: Greenhouse R. T. Clausen 47-79 1949-12-21
GH: 01990872 Sedum retusum Hemsley Mexico: 15 km. southeast of Joya de Sales, northwest... R. T. Clausen 7416 1949-2-25
GH: 01990878 Sedum rhodocarpum Rose Mexico: Nuevo León North facing slope, La Boca Canyon, 3 km. ea... R. T. Clausen 7546 1949-4-11
GH: 01990877 Sedum rhodocarpum Rose Mexico: Nuevo León On western side of Sierra de la Silla, south... R. T. Clausen 7567 1949-4-13
GH: 01990119 Sedum rosea integrifolium (Rafinesque) Hultén USA: New Mexico On south-facing, rocky slope, north side of ... R. T. Clausen 7847 1949-6-24
GH: 01990128 Sedum rosea leedyi Rosend. & J. W. Moore USA: Minnesota South side of North Branch of Root River, fa... R. T. Clausen 7760 1949-6-4
GH: 01990129 Sedum rosea leedyi Rosend. & J. W. Moore USA: Minnesota South side of North Branch of Root River, fa... R. T. Clausen 7760 1949-6-4
GH: 00591440 Sedum telephium Linnaeus USA: Vermont East Berkshire R. T. Clausen 7891 1949-8-17
GH: 01990379 Sedum ternatum Michaux USA: Tennessee At base of steep slope near Red Fork, 4.8 km... R. T. Clausen 7728 1949-5-21
Ericaceae GH: 01537979 Chamaedaphne calyculata (Linnaeus) Moench USA: New York 1.6 km. east of Endicott R. T. Clausen 7880 1949-7-31
GH: 01594795 Leiophyllum buxifolium (Bergius) Elliott USA: Tennessee on summit of Roan Mountain. R. T. Clausen 7724 1949-5-19
Fabaceae GH: 01967768 Amorpha fruticosa Linnaeus USA: Arkansas by roadside 4 miles east of Brinkley R. T. Clausen 7720 1949-5-16
GH: 02047079 Astragalus canadensis Linnaeus USA: New Mexico Roadside, north side of Taos R. T. Clausen 7854 1949-6-24
GH: 02049544 Astragalus nuttallianus de Candolle USA: New Mexico Taos River Drainage; Roadside bank 4 miles e... R. T. Clausen 7835 1949-6-22
GH: 02030562 Astragalus sp. USA: Oklahoma 5 km. west of Wilburton R. T. Clausen 7653 1949-5-7
GH: 02030563 Astragalus sp. USA: Texas 1 mile south of Temple R. T. Clausen 7647 1949-5-6
GH: 02048924 Astragalus tenellus Pursh USA: New Mexico 7 miles northwest of Elizabethtown. R. T. Clausen 7829 1949-6-22
GH: 02030741 Baptisia bracteata Muhlenberg ex Elliott USA: Arkansas on east slope of southeast spur of Magazine ... R. T. Clausen 7662 1949-5-9
GH: 02030963 Baptisia leucantha Torr. & A. Gray USA: Oklahoma 1 km. west of Red Oak R. T. Clausen 7654 1949-5-7
GH: 01881217 Baptisia sphaerocarpa Nuttall USA: Oklahoma 3 miles west of Wilburton R. T. Clausen 7650 1949-5-7
GH: 02149302 Lathyrus leucanthus Rydberg USA: New Mexico eastern slope of Middle Ridge of Sierra Blan... R. T. Clausen 7789 1949-6-14
GH: 02150609 Lathyrus sp. USA: New Mexico 7 miles northwest of Elizabethtown R. T. Clausen 7828 1949-6-22
GH: 02150608 Lathyrus sp. USA: New Mexico [no additional data] R. T. Clausen 7830 1949-6-22
GH: 02150415 Lathyrus venosus Muhlenberg ex Willdenow USA: New Mexico upper canyon of Ruidosa Creek R. T. Clausen 7812 1949-6-18
GH: 02150404 Lathyrus venosus Muhlenberg ex Willdenow USA: Minnesota [data not captured] R. T. Clausen 7764 1949-6-4
GH: 02085957 Lupinus caudatus argophyllus (A. Gray) L. Ll. Phillips USA: New Mexico 6 km. east of Red River Pass R. T. Clausen 7836 1949-6-22
GH: 02128645 Lupinus sierrae-blancae E. O. Wooton & P. C. Standley USA: New Mexico Middle Ridge of Sierra Blanca R. T. Clausen 7802 1949-6-18
GH: 02128948 Lupinus texensis Hooker USA: Texas south of Temple R. T. Clausen 7642 1949-5-6
GH: 02129899 Medicago polymorpha Linnaeus USA: Texas 1 mile south of Temple R. T. Clausen 7645 1949-5-6
GH: 02130325 Melilotus indicus (Linnaeus) Allioni USA: Texas 1 mile south of Temple R. T. Clausen 7646 1949-5-6
GH: 02130371 Melilotus officinalis (Linnaeus) Lamarck USA: Iowa [data not captured] R. T. Clausen 7765 1949-6-7
GH: 02130611 Orbexilum pedunculatum Rydberg USA: Arkansas [data not captured] R. T. Clausen 7668 1949-5-9
GH: 02130641 Orbexilum pedunculatum Rydberg USA: Illinois [data not captured] R. T. Clausen 7751 1949-5-30
GH: 02131475 Oxytropis sericea Nuttall USA: New Mexico near summit of Monjeau R. T. Clausen 7820 1949-6-19
GH: 02131468 Oxytropis sericea Nuttall USA: New Mexico Elizabethtown. R. T. Clausen 7842 1949-6-22
GH: 02133637 Psoralidium lanceolatum (Pursh) Rydberg USA: Oklahoma Prairie 6 km. northeast of Claremore R. T. Clausen 7778 1949-6-11
GH: 02133834 Psoralidium tenuiflorum (Pursh) Rydberg USA: Missouri [data not captured] R. T. Clausen 7766 1949-6-8
GH: 02134801 Robinia hispida Linnaeus USA: Tennessee [data not captured] R. T. Clausen 7730 1949-5-21
GH: 00571280 Robinia neomexicana A. Gray USA: New Mexico eastern slope of Sierra Blanca R. T. Clausen 7786 1949-6-14
GH: 02135060 Robinia pseudoacacia Linnaeus USA: New Mexico north side of Taos. R. T. Clausen 7822 1949-6-21
GH: 02136583 Stylosanthes biflora Britton, Stearn & Poggenburg USA: Illinois [data not captured] R. T. Clausen 7752 1949-5-30
GH: 02137449 Tephrosia virginiana (Linnaeus) Persoon USA: Arkansas [data not captured] R. T. Clausen 7701 1949-5-12
GH: 02137601 Tephrosia virginiana (Linnaeus) Persoon USA: Missouri [data not captured] R. T. Clausen 7769 1949-6-9
GH: 02342381 Trifolium campestre Schreber USA: Illinois [data not captured] R. T. Clausen 7744 1949-5-30
GH: 02342736 Trifolium dubium Sibthorp USA: Oklahoma 3 km west of Wilburton R. T. Clausen 7652 1949-5-7
GH: 02343255 Trifolium incarnatum Linnaeus USA: Tennessee [data not captured] R. T. Clausen 7721 1949-5-17
GH: 02464228 Trifolium mucronatum lacerum (Greene) J. M. Gillett USA: New Mexico Elizabethtwon. R. T. Clausen 7841 1949-6-22
GH: 02344009 Trifolium reflexum Linnaeus USA: Arkansas [data not captured] R. T. Clausen 7702 1949-5-13
GH: 02344293 Trifolium rydbergii Greene USA: New Mexico 4 km. north of Elizabethtown. R. T. Clausen 7845 1949-6-23
GH: 02347643 Vicia sp. USA: Texas 1 mile south of Temple R. T. Clausen 7648 1949-5-6
GH: 02150404 Vicia sp. USA: Minnesota [data not captured] R. T. Clausen 7764 1949-6-4
GH: 02347589 Vicia villosa varia (Host) Corbière USA: Arkansas [data not captured] R. T. Clausen 7719 1949-5-16
Lycopodiaceae GH: 02163481 Diphasiastrum digitatum (Dillenius ex A. Braun) Holub USA: New York Erin Township R. T. Clausen 7921 1949-10-23
GH: 02077157 Huperzia lucidula (Michaux) Trevisan USA: New York Erin Tp. R. T. Clausen 7918 1949-10-23
GH: 02077156 Huperzia lucidula (Michaux) Trevisan USA: New York Erin Township R. T. Clausen 7919 1949-10-23
Mimosaceae GH: 00444564 Painteria leptophylla (de Candolle) Britton & Rose Mexico: Tlaxcala by waterfall of Atlihuetzia, southwest of Ap... R. T. Clausen 7493 1949-3-25
GH: 01992679 Schrankia sp. USA: Texas 1 mile south of Temple R. T. Clausen 7643 1949-5-6
Nyctaginaceae GH: 01846427 Mirabilis nyctaginea (Michaux) MacMillan USA: New York railroad west of Cayuga Bridge R. T. Clausen 7872 1949-7-17
Oleaceae GH: 01846787 Chionanthus virginicus Linnaeus USA: Arkansas on north side of southeast spur of Magazine ... R. T. Clausen 7673 1949-5-10
Polygonaceae GH: 02365588 Fallopia scandens (Linnaeus) Holub USA: New York [data not captured] R. T. Clausen 7913 1949-10-2
Primulaceae GH: 01922827 Dodecatheon sp. USA: Arkansas Southeast spur of Magazine Mt. R. T. Clausen 7674 1949-5-10
Rhytidiaceae FH: 01146216 Rhytidium rugosum (Hedwig) Kindberg Mexico: Tamaulipas [data not captured] R. T. Clausen J. L. Edwards 7404 1949-2-20
Rosaceae GH: 01726919 Amelanchier arborea (F. Michaux) Fernald USA: Arkansas Along brook southwest of Millard, east slope... R. T. Clausen 7685 1949-5-11
GH: 01730834 Aronia melanocarpa (Michaux) Elliott USA: New York 1.6 km east of Endicott R. T. Clausen 7875 1949-7-31
Saxifragaceae GH: 01735597 Heuchera parvifolia Nuttall ex Torrey & A. Gray USA: New Mexico north side of Rio Hondo canyon 4 km below (w... R. T. Clausen 7848 1949-6-24
