Anacardiaceae GH: 01868422 Rhus trilobata Nuttall USA: Wyoming Southern flank of the Owl Creek Range, east ... Ced. L. Porter & M. W. Porter 8585 1961-6-13
Apocynaceae GH: 02179906 Apocynum cannabinum Linnaeus USA: Nebraska 30 miles south of Chadron, on Cottonwood Cre... Ced. L. Porter & M. W. Porter 8771 1961-7-19
Asclepiadaceae GH: 00961086 Asclepias pumila (A. Gray) Vail USA: Nebraska Chadron State Park, 9 miles south of Chadron Ced. L. Porter & M. W. Porter 8808 1961-7-19
Asteraceae GH: 00968512 Artemisia cana Pursh USA: Wyoming Northwestern Fremont County Wind River Range... Ced. L. Porter & M. W. Porter 8827 1961-8-15
GH: 02020907 Cirsium foliosum (Hooker) de Candolle USA: Wyoming N. E. part of Laramie near the high school Ced. L. Porter & M. W. Porter 8819 1961-8-3
GH: 02022039 Cirsium vulgare (Savi) Tenore USA: Idaho [data not captured] Ced. L. Porter & M. W. Porter 8843 1961-8-17
GH: 02142661 Crepis modocensis Greene USA: Wyoming 35 miles west of Casper; south of Poison Spi... Ced. L. Porter & M. W. Porter 8550 1961-6-6
GH: 02142650 Crepis modocensis Greene USA: Wyoming Fremont - Hot Springs County Line; Owl Creek... Ced. L. Porter & M. W. Porter 8612 1961-6-14
GH: 02352170 Erigeron ochroleucus Nuttall USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8562 1961-6-7
GH: 02351051 Erigeron pulcherrimus A. Heller USA: Utah Hills 5 miles west of Vernal, on US 40 Ced. L. Porter & M. W. Porter 10388 1961-6-20
GH: 02351862 Erigeron strigosus Muhlenberg ex Willdenow USA: Nebraska 20 miles south of Chadron Ced. L. Porter & M. W. Porter 8780 1961-7-19
GH: 01835321 Lygodesmia grandiflora (Nuttall) Torrey & A. Gray USA: Wyoming East side of Alcova Reservoir on the North P... Ced. L. Porter & M. W. Porter 8569 1961-6-8
Boraginaceae GH: 01996820 Lithospermum occidentale (Mackenzie) Weakley, Witsell & D. Estes USA: Nebraska 20 miles south of Chadron. Ced. L. Porter & M. W. Porter 8792 1961-7-19
GH: 01997227 Lithospermum ruderale Douglas ex Lehmann USA: Wyoming Fremont - Hot Springs County Line; Owl Creek... Ced. L. Porter & M. W. Porter 8609 1961-6-14
GH: 01997982 Mertensia humilis Rydberg USA: Wyoming South side of Casper Mountain. Ced. L. Porter & M. W. Porter 8564 1961-6-7
GH: 02058119 Mertensia lanceolata (Pursh) de Candolle USA: Wyoming South side of Casper Mountain. Ced. L. Porter & M. W. Porter 8565 1961-6-7
GH: 02060661 Oreocarya glomerata (Pursh) Greene USA: Wyoming 35 miles west of Casper, on a sandstone ridg... Ced. L. Porter & M. W. Porter 8546 1961-6-6
GH: 02061342 Oreocarya thyrsiflora Greene USA: Wyoming Along US 87, 20 - 30 miles north of Cheyenne... Ced. L. Porter & M. W. Porter 8666 1961-6-22
Brassicaceae GH: 01153807 Barbarea vulgaris W. T. Aiton USA: Wyoming Southeastern Carbon County; West slope of Me... Ced. L. Porter & M. W. Porter 8695 1961-6-30
GH: 00944325 Boechera sp. USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8608 1961-6-14
GH: 01098015 Camelina microcarpa Andrzejowski ex de Candolle USA: Wyoming Fremont - Hot Springs County Line. Owl Creek... Ced. L. Porter & M. W. Porter 8646 1961-6-14
GH: 01087666 Chorispora tenella (Pallas) de Candolle USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8644 1961-6-14
GH: 00971506 Draba oligosperma Hooker USA: Wyoming Fremont - Hot Springs County Line. Owl Creek... Ced. L. Porter & M. W. Porter 8631 1961-6-14
GH: 01540915 Isatis tinctoria Linnaeus USA: Wyoming Between Walcott Junction and Fort Steele, al... Ced. L. Porter & M. W. Porter 8576 1961-6-13
GH: 01575789 Physaria garrettii (Payson) O'Kane & Al-Shehbaz USA: Wyoming Southern flank of the Owl Creek Range, east ... Ced. L. Porter & M. W. Porter 8629 1961-6-13
GH: 01691464 Physaria spatulata (Rydberg) Grady & O'Kane USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8642 1961-6-14
GH: 01692099 Rorippa curvipes Greene USA: Wyoming Teton National Park. North end of Jackson La... Ced. L. Porter & M. W. Porter 8829a 1961-8-15
GH: 01731477 Thlaspi arvense Linnaeus USA: Wyoming West slope of Medicine Bow Range, at edge of... Ced. L. Porter & M. W. Porter 8705 1961-6-30
Caprifoliaceae GH: 02035160 Symphoricarpos vaccinioides Rydberg USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8712 1961-6-30
Caryophyllaceae GH: 01743024 Cerastium arvense Linnaeus USA: Wyoming Fremont - Hot Springs County Line. Owl Creek... Ced. L. Porter & M. W. Porter 8596 1961-6-14
GH: 01714600 Paronychia depressa (A. Gray & Torrey) Nuttall ex A. Nelson USA: Wyoming Along US 87, 20-30 miles north of Cheyenne Ced. L. Porter & M. W. Porter 8663 1961-6-22
Chenopodiaceae GH: 01781434 Blitum capitatum Linnaeus USA: Wyoming Medicine Bow Range. along N. fork of Little ... Ced. L. Porter & M. W. Porter 8809 1961-7-27
GH: 01782245 Chenopodium atrovirens Rydberg USA: Wyoming plains between Jeffrey City and Muddy Gap. Ced. L. Porter & M. W. Porter 8868 1961-8-22
GH: 01782347 Chenopodium berlandieri Moquin-Tandon USA: Wyoming 15 miles northwest of Green River. Ced. L. Porter & M. W. Porter 8747 1961-7-9
GH: 01782346 Chenopodium berlandieri Moquin-Tandon USA: Wyoming Along the Snake River 2 miles below Jackson ... Ced. L. Porter & M. W. Porter 8865 1961-8-20
GH: 01782658 Chenopodium leptophyllum Nuttall USA: Wyoming between Jeffrey City and Muddy Gap. Ced. L. Porter & M. W. Porter 8869 1961-8-22
GH: 01784131 Cycloloma atriplicifolium (Sprengel) J. M. Coulter USA: South Dakota 2 miles south of Oelrichs Ced. L. Porter & M. W. Porter 8804 1961-7-20
GH: 01784685 Grayia spinosa (Hooker) Moquin-Tandon USA: Wyoming Between Walcott Junction and Fort Steele, al... Ced. L. Porter & M. W. Porter 8577 1961-6-13
GH: 01784921 Krascheninnikovia lanata (Pursh) A. Meeuse & A. Smit USA: Wyoming 15 miles northwest of Green River. Ced. L. Porter & M. W. Porter 8746 1961-7-9
GH: 01783181 Oxybasis glauca salina (Standley) Mosyakin USA: Wyoming Along Black's Fork, about 12 miles south of ... Ced. L. Porter & M. W. Porter 8741 1961-7-9
GH: 01783274 Oxybasis rubra (Linnaeus) S. Fuentes, Uotila & Borsch USA: Wyoming Teton National Park. North end of Jackson La... Ced. L. Porter & M. W. Porter 8830 1961-8-15
GH: 01785467 Suaeda depressa (Pursh) S. Watson USA: Wyoming Along Black's Fork, about 12 miles south of ... Ced. L. Porter & M. W. Porter 8743 1961-7-9
Convolvulaceae GH: 02055885 Convolvulus arvensis Linnaeus USA: Wyoming 10 miles west of Pine Bluffs Ced. L. Porter & M. W. Porter 8755 1961-7-11
GH: 02042217 Ipomoea leptophylla Torrey USA: Nebraska Chadron State Park, 9 miles south of Chadron Ced. L. Porter & M. W. Porter 8805 1961-7-19
Cupressaceae GH: 02105828 Juniperus osteosperma (Torrey) Little USA: Wyoming Southern flank of the Owl Creek Range, east ... Ced. L. Porter & M. W. Porter 8650 1961-6-13
GH: 02105827 Juniperus osteosperma (Torrey) Little USA: Wyoming Southern Sweetwater County 5 miles E of the ... Ced. L. Porter & M. W. Porter 8735 1961-7-8
GH: 02106204 Juniperus scopulorum Sargent USA: Nebraska 8 miles south of Scottsbluff, in the Wildcat... Ced. L. Porter & M. W. Porter 8754 1961-7-11
GH: 02106476 Juniperus scopulorum Sargent USA: Wyoming Canyon of the Snake River. Ced. L. Porter & M. W. Porter 8857 1961-8-19
Cyperaceae GH: 01774454 Carex rostrata Stokes USA: Wyoming [data not captured] Ced. L. Porter & M. W. Porter 8849 1961-8-18
GH: 02370301 Carex vallicola Dewey USA: Wyoming Owl Creek Range east of the Wind River Canyo... Ced. L. Porter & M. W. Porter 8647 1961-6-14
GH: 01774889 Carex vesicaria Linnaeus USA: Wyoming [data not captured] Ced. L. Porter & M. W. Porter 8850 1961-8-18
Fabaceae GH: 02064724 Astragalus bisulcatus (Hooker) A. Gray USA: Wyoming Southern flank of the Owl Creek Range, east ... Ced. L. Porter & M. W. Porter 8580 1961-6-13
GH: 02047380 Astragalus cibarius E. Sheldon USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8599 1961-6-14
GH: 02044150 Astragalus drummondii Douglas ex Hooker USA: Wyoming Fremont - Hot Springs County Line. Owl Creek... Ced. L. Porter & M. W. Porter 8598 1961-6-14
GH: 02044151 Astragalus drummondii Douglas ex Hooker USA: Wyoming Along US 87, 20-30 miles north of Cheyenne Ced. L. Porter & M. W. Porter 8671 1961-6-22
GH: 02049065 Astragalus miser oblongifolius (Rydberg) Cronquist USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8728 1961-6-30
GH: 02049009 Astragalus miser decumbens (Nuttall) Cronquist USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8563 1961-6-7
GH: 02049010 Astragalus miser decumbens (Nuttall) Cronquist USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8600 1961-6-14
GH: 02048237 Astragalus purshii Douglas ex Hooker USA: Wyoming Fremont - Hot Springs County Line. Owl Creek... Ced. L. Porter & M. W. Porter 8639 1961-6-14
GH: 02048765 Astragalus spatulatus E. Sheldon USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8566 1961-6-7
GH: 02048964 Astragalus tenellus Pursh USA: Wyoming Along US 87, 20-30 miles north of Cheyenne Ced. L. Porter & M. W. Porter 8670 1961-6-22
GH: 01921448 Dalea purpurea Ventenat USA: Nebraska 20 miles south of Chadron Ced. L. Porter & M. W. Porter 8782 1961-7-19
GH: 01921639 Dalea villosa (Nuttall) Sprengel USA: South Dakota 2 miles south of Oelrichs Ced. L. Porter & M. W. Porter 8801 1961-7-20
GH: 02148491 Lathyrus bijugatus T. G. White USA: Colorado West side of Cameron Pass, at the Crags Camp... Ced. L. Porter & M. W. Porter 8690 1961-6-28
GH: 02149305 Lathyrus leucanthus Rydberg USA: Wyoming Southeastern Carbon County. West slope of Me... Ced. L. Porter & M. W. Porter 8703 1961-6-30
GH: 02085183 Lupinus argenteus Pursh USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8614 1961-6-14
GH: 02085184 Lupinus argenteus Pursh USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8615 1961-6-14
GH: 02177902 Lupinus plattensis S. Watson USA: Wyoming Along US 87, 20 - 30 miles north of Cheyenne... Ced. L. Porter & M. W. Porter 8659 1961-6-22
GH: 02129264 Lupinus wyethii S. Watson USA: Wyoming South side of Casper Mountain. Ced. L. Porter & M. W. Porter 8555 1961-6-7
GH: 02129542 Medicago falcata Linnaeus USA: Wyoming 2 miles east of Bosler, along the Laramie Ri... Ced. L. Porter & M. W. Porter 8732 1961-7-5
GH: 02129721 Medicago lupulina Linnaeus USA: Nebraska 20 miles south of Chadron. Ced. L. Porter & M. W. Porter 8789 1961-7-19
GH: 02130893 Oxytropis besseyi ventosa (Greene) Barneby USA: Wyoming between Shoshoni and Boysen Dam Ced. L. Porter & M. W. Porter 8620 1961-6-14
GH: 02131016 Oxytropis lambertii Pursh USA: Wyoming Along US 87, 20-30 miles north of Cheyenne. Ced. L. Porter & M. W. Porter 8675 1961-6-22
GH: 02131230 Oxytropis nana Nuttall USA: Wyoming Hills south of Casper Mountain. Ced. L. Porter & M. W. Porter 8552 1961-6-6
GH: 02131554 Oxytropis sericea spicata (Hooker) Barneby USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8616 1961-6-14
GH: 02131762 Pediomelum argophyllum (Pursh) Rydberg USA: Nebraska 20 miles south of Chadron. Ced. L. Porter & M. W. Porter 8787 1961-7-19
GH: 02342998 Trifolium gymnocarpon Nuttall USA: Wyoming South side of Casper Mountain. Ced. L. Porter & M. W. Porter 8554 1961-6-7
GH: 02343120 Trifolium hybridum Linnaeus USA: Wyoming Southeastern Carbon County. West slope of Me... Ced. L. Porter & M. W. Porter 8702 1961-6-30
GH: 02343967 Trifolium pratense Linnaeus USA: Wyoming Southeastern Carbon County. West slope of Me... Ced. L. Porter & M. W. Porter 8701 1961-6-30
GH: 02345214 Vicia americana Muhlenberg ex Willdenow USA: Wyoming Southeastern Carbon County. West slope of Me... Ced. L. Porter & M. W. Porter 8697 1961-6-30
GH: 02345323 Vicia americana minor Hooker USA: Wyoming Fremont - Hot Springs County Line; Owl Creek... Ced. L. Porter & M. W. Porter 8638 1961-6-14
Juncaceae GH: 02401135 Juncus ensifolius Wikström USA: Wyoming Northwestern Fremont County; Wind River Rang... Ced. L. Porter & M. W. Porter 8823 1961-8-15
GH: 02400681 Juncus mertensianus Bongard USA: Wyoming Northwestern Fremont County; Wind River Rang... Ced. L. Porter & M. W. Porter 8822 1961-8-15
GH: 02397586 Juncus torreyi Coville USA: Wyoming 2 miles west of Van Tassel, on the Niobrara ... Ced. L. Porter & M. W. Porter 8761 1961-7-18
GH: 02397996 Juncus triglumis albescens (Lange) Hultén USA: Wyoming Medicine Bow Range. Near Telephone Lakes. Ced. L. Porter & M. W. Porter 8810 1961-7-27
Lamiaceae GH: 01599107 Monarda fistulosa menthifolia (Graham) Fernald USA: Nebraska 20 miles south of Chadron. Ced. L. Porter & M. W. Porter 8785 1961-7-19
GH: 01597069 Prunella vulgaris Linnaeus USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8715 1961-6-30
GH: 01696987 Scutellaria brittonii Porter USA: Wyoming Along US 87, 20-30 miles north of Cheyenne Ced. L. Porter & M. W. Porter 8673 1961-6-22
Nyctaginaceae GH: 01642444 Abronia fragrans Nuttall ex Hooker USA: South Dakota Oelrichs: 2 miles south of Oelrichs Ced. L. Porter & M. W. Porter 8799 1961-7-20
Oleaceae GH: 01849511 Fraxinus pennsylvanica Marshall USA: Nebraska Chadron State Park, 9 miles south of Chadron... Ced. L. Porter & M. W. Porter 8766 1961-7-19
Onagraceae GH: 01624925 Calylophus serrulatus (Nuttall) P. H. Raven USA: Nebraska Chadron State Park, 9 miles south of Chadron... Ced. L. Porter & M. W. Porter 8807 1961-7-19
GH: 01776108 Epilobium hornemannii Reichenbach USA: Wyoming Medicine Bow Range. Near Telephone Lakes Ced. L. Porter & M. W. Porter 8812 1961-7-27
GH: 01645485 Oenothera canescens Torrey & Fremont USA: Nebraska 20 miles north of Kimball. Ced. L. Porter & M. W. Porter 8751 1961-7-11
Orobanchaceae GH: 02033558 Castilleja angustifolia (Nuttall) G. Don USA: Wyoming between Shoshoni and Boysen Dam; Owl Creek R... Ced. L. Porter & M. W. Porter 8626 1961-6-14
GH: 02081301 Orthocarpus luteus Nuttall USA: Nebraska 20 miles south of Chadron Ced. L. Porter & M. W. Porter 8781 1961-7-19
GH: 02080506 Pedicularis crenulata Bentham USA: Wyoming 2 miles east of Bosler, along the Laramie Ri... Ced. L. Porter & M. W. Porter 8729 1961-7-5
Pinaceae GH: 00398606 Pinus edulis Engelmann USA: Wyoming Southern Sweetwater County. 5 miles E of the... Ced. L. Porter & M. W. Porter 8734 1961-7-8
Plantaginaceae GH: 02212670 Callitriche palustris Linnaeus USA: Wyoming Teton National Park, North end of Jackson La... Ced. L. Porter & M. W. Porter 8833 1961-8-15
GH: 01998878 Collinsia parviflora Lindley USA: Wyoming Fremont - Hot Springs County Line; Owl Creek... Ced. L. Porter & M. W. Porter 8601 1961-6-14
GH: 01998877 Collinsia parviflora Lindley USA: Wyoming South side of Casper Mountain. Ced. L. Porter & M. W. Porter 8560 1961-6-7
GH: 02002168 Penstemon angustifolius Nuttall ex Pursh USA: Wyoming Along US 87, 20 - 30 miles north of Cheyenne... Ced. L. Porter & M. W. Porter 8672 1961-6-22
GH: 02118274 Penstemon cleburnei M. E. Jones USA: Wyoming 35 miles west of Casper, on a sandstone ridg... Ced. L. Porter & M. W. Porter 8545 1961-6-6
GH: 02119384 Penstemon eriantherus Pursh USA: Wyoming Fremont - Hot Springs County Line; Owl Creek... Ced. L. Porter & M. W. Porter 8637 1961-6-14
GH: 02120076 Penstemon grandiflorus Nuttall USA: Nebraska Chadron State Park, 9 miles south of Chadron... Ced. L. Porter & M. W. Porter 8794 1961-7-19
GH: 02120783 Penstemon laricifolius Hooker & Arnott USA: Wyoming Southern flank of the Owl Creek Range, east ... Ced. L. Porter & M. W. Porter 8587 1961-6-13
GH: 02121629 Penstemon paysoniorum D. D. Keck USA: Wyoming Beaver Hill, about 35 miles east of Lander. Ced. L. Porter & M. W. Porter 8578 1961-6-13
GH: 02122078 Penstemon radicosus A. Nelson USA: Wyoming Fremont - Hot Springs County line. Owl Creek... Ced. L. Porter & M. W. Porter 8607 1961-6-14
GH: 02122801 Penstemon strictus Bentham USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8716 1961-6-30
GH: 01804022 Plantago tweedyi A. Gray USA: Colorado West side of Cameron Pass, at The Crags Camp... Ced. L. Porter & M. W. Porter 8684 1961-6-28
GH: 01805364 Veronica argute-serrata Regel & Schmalhausen USA: Wyoming Fremont - Hot Springs County Line; Owl Creek... Ced. L. Porter & M. W. Porter 8635 1961-6-14
Poaceae GH: 01812869 Andropogon hallii Hackel USA: Nebraska 8 miles south of Scotttsbluff, in the Wildca... Ced. L. Porter & M. W. Porter 8753 1961-7-11
Polemoniaceae GH: 01083744 Aliciella pinnatifida (Nuttall ex A. Gray) J. M. Porter USA: Wyoming Southern Albany County. Dale Creek Station o... Ced. L. Porter & M. W. Porter 8757 1961-7-17
GH: 01092538 Collomia linearis Nuttall USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8645 1961-6-14
GH: 01000872 Gilia tweedyi Rydberg USA: Wyoming 35 miles west of Casper, on a sandstone ridg... Ced. L. Porter & M. W. Porter 8551 1961-6-6
GH: 00985052 Gymnosteris parvula A. Heller USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8556 1961-6-7
GH: 00985347 Ipomopsis aggregata attenuata (A. Gray) V. E. Grant & A. D. Grant USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8714 1961-6-30
GH: 01571180 Phlox andicola E. E. Nelson USA: Wyoming Northeastern Laramie County. Along US 85, ne... Ced. L. Porter & M. W. Porter 8680 1961-6-27
GH: 01574367 Phlox hoodii glabrata (E. E. Nelson) Wherry USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8568 1961-6-7
GH: 01574714 Phlox multiflora A. Nelson USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8553 1961-6-7
Polygonaceae GH: 01618217 Eriogonum annuum Nuttall USA: Nebraska 30 miles south of Chadron, on Cottonwood Cre... Ced. L. Porter & M. W. Porter 8774 1961-7-19
GH: 02043757 Eriogonum umbellatum majus Bentham USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8725 1961-6-30
GH: 02364811 Persicaria coccinea (Muhlenberg ex Willdenow) Greene USA: Nebraska 2 miles east of Bushnell. Ponds along Lodgep... Ced. L. Porter & M. W. Porter 8748 1961-7-11
GH: 02006429 Rumex acetosella Linnaeus USA: Wyoming West slope of Medicine Bow Range, on Brush C... Ced. L. Porter & M. W. Porter 8706 1961-6-30
GH: 02005576 Rumex maritimus fueginus (Philippi) Dusén USA: Wyoming Teton National Park. North end of Jackson La... Ced. L. Porter & M. W. Porter 8828 1961-8-15
Portulacaceae GH: 01859916 Lewisia rediviva Pursh USA: Wyoming Northern end of the Sierra Madre, 26 miles s... Ced. L. Porter & M. W. Porter 8710 1961-6-30
Potamogetonaceae GH: 01572495 Potamogeton friesii Ruprecht USA: Wyoming Ponds 1 mile southwest of Moose Ced. L. Porter & M. W. Porter 8859 1961-8-19
Primulaceae GH: 01942645 Androsace septentrionalis puberulenta (Rydberg) Knuth USA: Colorado West side of Cameron Pass, at the Crags camp... Ced. L. Porter & M. W. Porter 8681 1961-6-28
GH: 01922031 Dodecatheon conjugens Greene USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8557 1961-6-7
Ranunculaceae GH: 01658409 Delphinium bicolor Nuttall USA: Wyoming Fremont - Hot Springs County Line. Owl Creek... Ced. L. Porter & M. W. Porter 8610 1961-6-14
GH: 01658410 Delphinium bicolor Nuttall USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8559 1961-6-7
GH: 01659015 Delphinium geyeri Greene USA: Wyoming 35 miles west of Casper, south of Poison Spi... Ced. L. Porter & M. W. Porter 8548 1961-6-6
GH: 01661198 Halerpestes cymbalaria (Pursh) Green USA: Wyoming Along Black's Fork, about 12 miles south of ... Ced. L. Porter & M. W. Porter 8742 1961-7-9
GH: 01662605 Ranunculus alismifolius montanus S. Watson USA: Utah North end of the Sierra Madre, 26 miles sout... Ced. L. Porter & M. W. Porter 8721 1961-6-30
Rosaceae GH: 01612472 Crataegus douglasii Lindley USA: Idaho Hills 6 miles south of Victor Ced. L. Porter & M. W. Porter 8848 1961-8-17
GH: 01566041 Ivesia gordonii (Hooker) Torrey & A. Gray USA: Wyoming Fremont-Hot Springs County Line Owl Creek Ra... Ced. L. Porter & M. W. Porter 8634 1961-6-14
GH: 01590593 Physocarpus monogynus (Torrey) J. M. Coulter USA: Wyoming Southern flank of the Owl Creek Range, east ... Ced. L. Porter & M. W. Porter 8592a 1961-6-13
GH: 01557169 Rosa acicularis sayi (Schweinitz) W. H. Lewis USA: Wyoming Southeastern Carbon County. West slope of Me... Ced. L. Porter & M. W. Porter 8699 1961-6-30
Rubiaceae GH: 02358644 Galium bifolium S. Watson USA: Wyoming Fremont-Hot Springs County Line Owl Creek Ra... Ced. L. Porter & M. W. Porter 8636 1961-6-14
Saxifragaceae GH: 01153699 Lithophragma glabrum Nuttall USA: Wyoming South side of Casper Mountain Ced. L. Porter & M. W. Porter 8561 1961-6-7
GH: 01711333 Lithophragma parviflorum (Hooker) Nuttall USA: Wyoming Fremont-Hot Springs County Line. Owl Creek R... Ced. L. Porter & M. W. Porter 8643 1961-6-14
Scrophulariaceae GH: 02041454 Limosella aquatica Linnaeus USA: Wyoming Teton National Park; North end of Jackson La... Ced. L. Porter & M. W. Porter 8834 1961-8-15
Solanaceae GH: 01541270 Physalis heterophylla Nees USA: Nebraska 20 miles south of Chadron Ced. L. Porter & M. W. Porter 8791 1961-7-19
Tamaricaceae GH: 01942347 Tamarix pentandra Pallas USA: Wyoming about 12 miles south of Green River Ced. L. Porter & M. W. Porter 8740 1961-7-9
Verbenaceae GH: 01955917 Verbena stricta Ventenat USA: Nebraska 20 miles south of Chadron. Ced. L. Porter & M. W. Porter 8790 1961-7-19
GH: 01955918 Verbena stricta Ventenat USA: Nebraska 20 miles north of Kimball. Ced. L. Porter & M. W. Porter 8752 1961-7-11
Violaceae GH: 02145045 Viola bellidifolia Greene USA: Colorado West side of Cameron Pass, at The Crags Camp... Ced. L. Porter & M. W. Porter 8683 1961-6-28
GH: 02211970 Viola vallicola A. Nelson USA: Wyoming South side of Casper Mountain. Ced. L. Porter & M. W. Porter 8567 1961-6-7