Adiantaceae A: 00459717  Astrolepis cochisensis  (Goodding) D. M. Benham & M. D. Windham USA: Arizona northeast-facing slope of the Dos Cabezas Mo...  J. Barrell & S. A. Spongberg 66-201 1966-7-26 
Anacardiaceae A: 01868128  Rhus trilobata  Nuttall USA: Colorado at the junction of Route 149 with the old ro...  J. Barrell & S. A. Spongberg 66-58 1966-6-28 
Apocynaceae A: 02179329  Apocynum androsaemifolium  Linnaeus USA: Colorado on the floodplain of the Gunnison River at i...  J. Barrell & S. A. Spongberg 74-66 1966-6-28 
Asclepiadaceae A: 00993608  Asclepias latifolia  (Torrey) Rafinesque USA: New Mexico Route 60, a couple of miles southeast of Mag...  J. Barrell & S. A. Spongberg 66-193 1966-7-25 
Asteraceae A: 00968441  Artemisia cana  Pursh USA: Colorado along the Hot Springs Creek road about three...  J. Barrell & S. A. Spongberg 66-142 1966-7-18 
 A: 00968440  Artemisia cana  Pursh USA: Colorado the floor of Soldiers Park, just north of Sa...  J. Barrell & S. A. Spongberg 66-39 1966-6-22 
 A: 02214557  Baccharis salicifolia  (Ruiz & Pavon) Persoon USA: Arizona on the height of land between Naco and Lowel...  J. Barrell & S. A. Spongberg 149-66 1966-7-27 
 A: 02020960  Cirsium hookerianum  Nuttall USA: Colorado on the southwest-facing slope of Mt. Ouray o...  J. Barrell & S. A. Spongberg 66-154 1966-7-19 
 A: 02142292  Crepis acuminata  Nuttall USA: Colorado east-facing slope of Razor Creek Valley, abo...  J. Barrell & S. A. Spongberg 60-66 1966-6-24 
 A: 02142387  Crepis atribarba  A. Heller USA: Colorado some six miles southwest of Gunnison   J. Barrell & S. A. Spongberg 47-66 1966-6-15 
 A: 02203461  Dieteria bigelovii  (A. Gray) D. R. Morgan & R. L. Hartman USA: Colorado in the ash deposits of Cochetopa Park; angle...  J. Barrell & S. A. Spongberg 66-247 1966-8-11 
 A: 02207414  Erigeron acris kamteschaticus (de Candolle) Herder USA: Colorado left bank of Cebolla Creek in... canyon, abo...  J. Barrell & S. A. Spongberg 195a-66 1966-8-16 
 A: 02207760  Erigeron bellidiastrus  Nuttall USA: Colorado southeast-facing slope of Quartz Creek Valle...  J. Barrell & S. A. Spongberg 66-63 1966-6-28 
 A: 02348602  Erigeron formosissimus  Greene USA: Colorado on the retreating shore of Dry Lake, about t...  J. Barrell & S. A. Spongberg 162-66 1966-8-2 
 A: 02353644  Erigeron leiomerus  A. Gray USA: Colorado on the very knife-edge of the Continental Di...  J. Barrell & S. A. Spongberg 124-66 1966-7-19 
 A: 02353643  Erigeron leiomerus  A. Gray USA: Colorado summit of Sawtooth Mountain, about nineteen ...  J. Barrell & S. A. Spongberg 86-66 1966-7-5 
 A: 02353895  Erigeron lonchophyllus  Hooker USA: Colorado mud of the retreating shore of Dry Lake in D...  J. Barrell & S. A. Spongberg 66-224 1966-8-2 
 A: 02352320  Erigeron peregrinus  (Banks ex Pursh) Greene USA: Colorado on the east-facing slope of the East River V...  J. Barrell & S. A. Spongberg 66-69 1966-7-1 
Bignoniaceae A: 02054533  Campsis radicans  (Linnaeus) Bureau USA: Arizona along Route 666 in the town of Clifton   J. Barrell & S. A. Spongberg 66-199 1966-7-26 
Boraginaceae A: 02026702  Eritrichium nanum elongatum (Rydberg) Cronquist USA: Colorado on the very knife-edge of the Continental Di...  J. Barrell & S. A. Spongberg 66-151 1966-7-19 
 A: 01996640  Lithospermum multiflorum  Torrey USA: Colorado yard of the Sapinero Guard Station in McInty...  J. Barrell & S. A. Spongberg 66-29 1966-6-17 
 A: 01996635  Lithospermum multiflorum  Torrey USA: Colorado west bank of Razor Creek just below the cany...  J. Barrell & S. A. Spongberg 63-66 1966-6-24 
 A: 01997077  Lithospermum ruderale  Douglas ex Lehmann USA: Colorado yard of the Sapinero Guard Station in McInty...  J. Barrell & S. A. Spongberg 66-29 1966-6-17 
 A: 01997657  Mertensia ciliata  (James) G. Don USA: Colorado Spring Creek, about four miles south of Cath...  J. Barrell & S. A. Spongberg 50-66 1966-6-19 
 A: 02058203  Mertensia lanceolata nivalis (S. Watson) L. C. Higgins USA: Colorado slope of Mt. Ouray, just above Marshall Pass   J. Barrell & S. A. Spongberg 123-66 1966-7-19 
Brassicaceae GH: 01155680  Dimorphocarpa wislizenii  (J. Engleman) Rollins USA: New Mexico Route 85, about ten miles south of Belen   J. Barrell & S. A. Spongberg 135-66 1966-7-25 
 GH: 01155891  Draba aurea  Vahl USA: Colorado extending into Razor Creek Park from the Sou...  J. Barrell & S. A. Spongberg 67-66 1966-6-25 
 GH: 01155892  Draba aurea  Vahl USA: Colorado west of Cochetopa Pass recently devastated b...  J. Barrell & S. A. Spongberg 110-66 1966-7-14 
 GH: 01155929  Draba crassifolia  Graham USA: Colorado east-facing slope of Calf Creek Plateau, abo...  J. Barrell & S. A. Spongberg 83-66 1966-7-3 
 GH: 01155935  Draba crassifolia  Graham USA: Colorado base of east-facing talus of the cone of Saw...  J. Barrell & S. A. Spongberg 66-86 1966-7-5 
 A: 01548574  Lepidium draba  Linnaeus USA: Colorado over Cochetopa Pass near the summit   J. Barrell & S. A. Spongberg 66-123 1966-7-14 
 A: 01691373  Physaria rollinsii  G. A. Mulligan USA: Colorado edge of the old road to South Beaver Creek s...  J. Barrell & S. A. Spongberg 66-20 1966-6-15 
 GH: 01691388  Physaria rollinsii  G. A. Mulligan USA: Colorado slope of a small canyon opening onto the flo...  J. Barrell & S. A. Spongberg 73-66 1966-6-28 
 GH: 01716190  Sisymbrium loeselii  Linnaeus USA: Colorado yard of the Powderhorn Postoffice   J. Barrell & S. A. Spongberg 52-66 1966-6-22 
 GH: 01716392  Smelowskia americana  Rydberg USA: Colorado on the east-facing slope of Calf Creek Plate...  J. Barrell & S. A. Spongberg 66083 1966-7-3 
Caesalpiniaceae A: 01873714  Caesalpinia gilliesii  (Hooker) D. Dietrich USA: New Mexico in the outskirts of the twon of Socorro   J. Barrell & S. A. Spongberg 66-191 1966-7-25 
 A: 01676923  Hoffmannseggia glauca  (Ortega) Eifert USA: New Mexico in the undisturbed right-of-way of Route 85;...  J. Barrell & S. A. Spongberg 66-211 1966-7-28 
Caryophyllaceae A: 01713650  Minuartia rubella  (Wahlenberg) Hiern USA: Colorado on the north bank of Henson Creek about a mi...  J. Barrell & S. A. Spongberg 66-3 1966-6-8 
 A: 01713651  Minuartia rubella  (Wahlenberg) Hiern USA: Colorado on the rocky summit of Sawtooth Mountain, ab...  J. Barrell & S. A. Spongberg 66-90 1966-7-5 
 A: 01715014  Paronychia pulvinata  A. Gray USA: Colorado on the very edge of the Continental Divide; ...  J. Barrell & S. A. Spongberg 66-150 1966-7-19 
 A: 01715061  Paronychia sessiliflora  Nuttall USA: Colorado growing in Cochetopa Park ash deposits, angl...  J. Barrell & S. A. Spongberg 66-244 1966-8-11 
 A: 01751138  Silene acaulis  (Linnaeus) Jacquin USA: Colorado on the shore of a small tarn on the east-fac...  J. Barrell & S. A. Spongberg 66-81 1966-7-3 
 A: 01752321  Silene hitchguirei  Bocquet USA: Colorado edge of Calf Creek Plateau overlooking Devil...  J. Barrell & S. A. Spongberg 66-84 1966-7-3 
 A: 01752322  Silene hitchguirei  Bocquet USA: Colorado northwest-facing slope of Sawtooth Mountain,...  J. Barrell & S. A. Spongberg 66-87 1966-7-5 
 A: 01623217  Stellaria longipes  Goldie USA: Colorado bank of an old beaver dam in the narrow vall...  J. Barrell & S. A. Spongberg 49-66 1966-6-19 
Chenopodiaceae A: 01784805  Krascheninnikovia lanata  (Pursh) A. Meeuse & A. Smit USA: Colorado floodplain of the Gunnison River at its west...  J. Barrell & S. A. Spongberg 66-64 1966-6-28 
 A: 01785075  Sarcobatus vermiculatus  (Hooker) Torrey USA: Colorado banks of Hot Springs Creek just south of Rou...  J. Barrell & S. A. Spongberg 66-141 1966-7-18 
Convolvulaceae A: 02042277  Ipomoea longifolia  Bentham USA: Arizona on the east-facing slope of the height of la...  J. Barrell & S. A. Spongberg 66-209 1966-7-27 
Cornaceae A: 02019009  Cornus stolonifera  Michaux USA: Colorado about two miles southwest of Lake City   J. Barrell & S. A. Spongberg 66-9 1966-6-8 
Crassulaceae A: 01991483  Sedum lanceolatum  Torrey USA: Colorado above the sagebrush plateau some six miles s...  J. Barrell & S. A. Spongberg 66-24 1966-6-15 
Cyperaceae A: 02503251  Carex brevipes  W. Boott ex B. D. Jackson USA: Colorado just east of the open slope of Dakota quartz...  J. Barrell & S. A. Spongberg 66-70 1966-7-1 
 A: 02393648  Carex canescens  Linnaeus USA: Colorado backwater of Henson Creek near the Henson Cr...  J. Barrell & S. A. Spongberg 66-8 1966-6-8 
 A: 02503251  Carex deflexa boottii L. H. Bailey USA: Colorado just east of the open slope of Dakota quartz...  J. Barrell & S. A. Spongberg 66-70 1966-7-1 
 A: 02370345  Carex hoodii  Boott USA: Colorado just west of the East River and the road to ...  J. Barrell & S. A. Spongberg 76-66 1966-7-1 
 A: 02368413  Carex micropoda  C. A. Meyer USA: Colorado North-facing, alpine slope of American Basin...  J. Barrell & S. A. Spongberg 166-66 1966-8-3 
 A: 02368291  Carex nigricans  C. A. Meyer USA: Colorado slope of American Basin, about a half-mile b...  J. Barrell & S. A. Spongberg 66-225 1966-8-3 
 A: 02369154  Carex praegracilis  W. Boott USA: Colorado west bank of Hot Springs Creek, just north o...  J. Barrell & S. A. Spongberg 118-66 1966-7-18 
 A: 02369153  Carex praegracilis  W. Boott USA: Colorado on the west bank of Hot Springs Creek, just ...  J. Barrell & S. A. Spongberg 120-66 1966-7-18 
 A: 01775075  Carex saxatilis  Linnaeus USA: Colorado [data not captured]   J. Barrell & S. A. Spongberg 191-66 1966-8-15 
 A: 02370273  Carex vallicola  Dewey USA: Colorado SW-facing slope of McIntyre Gulch above Sapi...  J. Barrell & S. A. Spongberg 66-27 1966-6-7 
 A: 02370271  Carex vallicola  Dewey USA: Colorado E-facing slope of Razor Creek Valley, about ...  J. Barrell & S. A. Spongberg 66-48 1966-6-24 
 A: 02370270  Carex vallicola  Dewey USA: Colorado E-facing slope of Razor Creek Valley, about ...  J. Barrell & S. A. Spongberg 66-48 1966-6-24 
 A: 02370269  Carex vallicola  Dewey USA: Colorado some 6 mi SW of Gunnison   J. Barrell & S. A. Spongberg 45-66 1966-6-15 
Ericaceae A: 01117678  Arctostaphylos pungens  Kunth USA: Arizona just outside the entrance to the Chiricahua ...  J. Barrell & S. A. Spongberg 66-204 1966-7-26 
Fabaceae A: 01967262  Acmispon wrightii  (A. Gray) Brouillet USA: Colorado at the junction of Route 149 and the old roa...  J. Barrell & S. A. Spongberg 66-60 1966-6-28 
 A: 01967264  Acmispon wrightii  (A. Gray) Brouillet USA: Colorado west side of Willow Creek Valley, about seve...  J. Barrell & S. A. Spongberg 56-66 1966-6-22 
 A: 02064094  Astragalus alpinus  Linnaeus USA: Colorado bank of Spring Creek, about four miles south...  J. Barrell & S. A. Spongberg 66-34 1966-6-19 
 A: 02044087  Astragalus drummondii  Douglas ex Hooker USA: Colorado in the grassy dooryard of the Sapinero Range...  J. Barrell & S. A. Spongberg 66-28 1966-6-17 
 A: 02044884  Astragalus hallii  A. Gray USA: Colorado west side of Willow Creek valley, about seve...  J. Barrell & S. A. Spongberg 66-42 1966-6-22 
 A: 02052105  Astragalus kentrophyta implexus (Canby) Barneby USA: Colorado growing in Cochetopa Park ash deposits, angl...  J. Barrell & S. A. Spongberg 66-246 1966-8-11 
 A: 02052896  Astragalus microcymbus  Barneby USA: Colorado near the road to Big Mesa, about three-quart...  J. Barrell & S. A. Spongberg 71-66 1966-6-28 
 A: 02049781  Astragalus oophorus  S. Watson USA: Colorado west side of the Willow Creek Valley, about ...  J. Barrell & S. A. Spongberg 66-41 1966-6-22 
 A: 02049905  Astragalus pattersonii  A. Gray USA: Colorado along the east bank of Prosser Creek, about ...  J. Barrell & S. A. Spongberg 66-45 1966-6-22 
 A: 02049906  Astragalus pattersonii  A. Gray USA: Colorado along the east bank of Prosser Creek, about ...  J. Barrell & S. A. Spongberg 66-45 1966-6-22 
 A: 02048444  Astragalus robbinsii  (Oakes) A. Gray USA: Colorado at the confluence of Sheep and Spring Creek,...  J. Barrell & S. A. Spongberg 66-33 1966-6-19 
 A: 02048803  Astragalus striatus  Nuttall USA: Colorado at the edge of an old road; west side of the...  J. Barrell & S. A. Spongberg 66-62 1966-6-28 
 A: 02048804  Astragalus striatus  Nuttall USA: Colorado at the summit of Cochetopa Pass; near the ro...  J. Barrell & S. A. Spongberg 66-133 1966-7-14 
 A: 02048806  Astragalus striatus  Nuttall USA: Colorado Cochetopa Park (Piedra formation) near the r...  J. Barrell & S. A. Spongberg 188-66 1966-8-13 
 A: 02048891  Astragalus tenellus  Pursh USA: Colorado on a low promontory extending into Razor Cre...  J. Barrell & S. A. Spongberg 65-66 1966-6-25 
 A: 02048892  Astragalus tenellus  Pursh USA: Colorado on a low promontory extending into Razor Cre...  J. Barrell & S. A. Spongberg 65-66 1966-6-25 
 A: 02048893  Astragalus tenellus  Pursh USA: Colorado about a half-mile south of Dry Lake Park on ...  J. Barrell & S. A. Spongberg 51-66 1966-6-19 
 A: 01921521  Dalea scariosa  S. Watson USA: New Mexico right-of-way of Route 85, about ten miles so...  J. Barrell & S. A. Spongberg 66-185 1966-7-25 
 A: 01959579  Glycyrrhiza lepidota  Nuttall ex Pursh USA: Colorado between Route 50 and Tomichi Creek, about se...  J. Barrell & S. A. Spongberg 66-143 1966-7-18 
 A: 01958065  Hedysarum alpinum  Linnaeus USA: Colorado about five hundred feet north of Needle Cree...  J. Barrell & S. A. Spongberg 70-66 1966-6-25 
 A: 02085058  Lupinus argenteus  Pursh USA: Colorado just north of the Continental Divide and wes...  J. Barrell & S. A. Spongberg 179-66 1966-8-11 
 A: 02085238  Lupinus argenteus rubricaulis (Greene) L. W. Hess & D. B. Dunn USA: Colorado about two and one-half miles north of the Sa...  J. Barrell & S. A. Spongberg 48-66 1966-6-17 
 A: 02085239  Lupinus argenteus rubricaulis (Greene) L. W. Hess & D. B. Dunn USA: Colorado east bank of Prosser Creek, about three and ...  J. Barrell & S. A. Spongberg 58-66 1966-6-24 
 A: 02085390  Lupinus bakeri amplus (Greene) L. S. Fleak & D. B. Dunn USA: Colorado on the east bank of Prosser Creek, about thr...  J. Barrell & S. A. Spongberg 57-66 1966-6-24 
 A: 02085807  Lupinus caudatus  Kellogg USA: Colorado high butte at the junction of Rt 149 and the...  J. Barrell & S. A. Spongberg 66-43 1966-6-22 
 A: 02132570  Oxytropis deflexa  (Pallas) de Candolle USA: Colorado on the east side of Cochetopa Pass   J. Barrell & S. A. Spongberg 109-66 1966-7-14 
 A: 02131406  Oxytropis sericea  Nuttall USA: Colorado slopes above the series of fish ponds in Van...  J. Barrell & S. A. Spongberg 66-248 1966-8-11 
 A: 02131405  Oxytropis sericea  Nuttall USA: Colorado north-facing slope south of the road to Los ...  J. Barrell & S. A. Spongberg 66-44 1966-6-24 
 A: 02134076  Psorothamnus scoparius  (A. Gray) Barneby USA: New Mexico rights-of-way of Route 85, about ten miles s...  J. Barrell & S. A. Spongberg 66-184 1966-7-25 
 A: 02135729  Sphaerophysa salsula  (Pallas) de Candolle USA: Colorado Route 285, a mile or so south of La Jara   J. Barrell & S. A. Spongberg 160-66 1966-7-29 
 A: 02342650  Trifolium dasyphyllum  Torrey & A. Gray USA: Colorado southwest-facing slope of Mt. Ouray, just ab...  J. Barrell & S. A. Spongberg 66-153 1966-7-19 
Gentianaceae A: 02167293  Gentianella amarella  (Linnaeus) Börner USA: Colorado Cochetopa Park, in the angle of the land bet...  J. Barrell & S. A. Spongberg 182-66 1966-8-11 
Geraniaceae A: 01863415  Erodium cicutarium  (Linnaeus) L'Heritier ex Aiton USA: Arizona at the edge of an old road in the cordillera...  J. Barrell & S. A. Spongberg 66-198 1966-7-25 
 A: 01863747  Geranium atropurpureum cowenii (Rydberg) Dorn USA: Colorado growing in the Piedra ash deposits of Cochet...  J. Barrell & S. A. Spongberg  1966-8-11 
 A: 01863748  Geranium atropurpureum cowenii (Rydberg) Dorn USA: Colorado steep south-facing wall of the Cebolla Creek...  J. Barrell & S. A. Spongberg 66-17a 1966-6-11 
 A: 01866027  Geranium richardsonii  Fischer & C. A. Meyer USA: Colorado on the left bank of Cebolla Creek in the dee...  J. Barrell & S. A. Spongberg 190-66 1966-8-14 
Haloragaceae A: 01628218  Myriophyllum sibiricum  Komarov USA: Colorado pond in the east fork of Cochetopa Creek a c...  J. Barrell & S. A. Spongberg 66-135 1966-7-14 
Iridaceae A: 01749310  Sisyrinchium demissum  Greene USA: Arizona near the Horseshoe Cienaga, a few miles nort...  J. Barrell & S. A. Spongberg 66-196 1966-7-25 
Juncaceae A: 02099231  Juncus balticus  Willdenow USA: Colorado east-facing slope of Razor Creek Valley, abo...  J. Barrell & S. A. Spongberg 66-49 1966-6-24 
 A: 02101450  Juncus confusus  Coville USA: Colorado just west of the East River, about four mile...  J. Barrell & S. A. Spongberg 66-72 1966-7-1 
 A: 02102109  Juncus drummondii  E. Meyer USA: Colorado Henson Creek; about a mile and one-half abov...  J. Barrell & S. A. Spongberg 36-66 1966-6-8 
 A: 02400581  Juncus mertensianus  Bongard USA: Colorado Henson Creek; about a mile and one-half abov...  J. Barrell & S. A. Spongberg 35-66 1966-6-8 
 A: 02399304  Juncus parryi  Engelmann USA: Colorado just east of the open slope of Dakota quartz...  J. Barrell & S. A. Spongberg 75-66 1966-7-1 
 A: 02366730  Luzula spicata  Linnaeus USA: Colorado Sawtooth Mountain, about nineteen miles sout...  J. Barrell & S. A. Spongberg 90-66 1966-7-5 
 A: 02366729  Luzula spicata  Linnaeus USA: Colorado slope of Saw-tooth Mountain, about nineteen ...  J. Barrell & S. A. Spongberg 66-91 1966-7-5 
Lamiaceae A: 01551373  Mentha arvensis  Linnaeus USA: Colorado on the banks of Hot Springs Creek just south...  J. Barrell & S. A. Spongberg 66-140 1966-7-18 
 A: 01699491  Stachys pilosa  Nuttall USA: Colorado along the right-of-way of Route 50 east of G...  J. Barrell & S. A. Spongberg 66-68 1966-6-28 
Linaceae A: 01968847  Linum aristatum  Engelmann USA: New Mexico Route 85, some fifteen miles south of Belen   J. Barrell & S. A. Spongberg 66-187 1966-7-25 
Malvaceae A: 02198034  Sphaeralcea munroana  (Douglas ex Lindley) Spach USA: New Mexico of Route 85, about ten miles south of Belen   J. Barrell & S. A. Spongberg 139-66 1966-7-25 
Mimosaceae A: 01680856  Acacia millefolia  S. Watson USA: Arizona between Naco and Lowell, just west of the ro...  J. Barrell & S. A. Spongberg 66-208 1966-7-27 
 A: 01680876  Acacia neovernicosa  Isely USA: Arizona on the south-facing slope of the Mule Mounta...  J. Barrell & S. A. Spongberg 66-206 1966-7-27 
 A: 01992235  Prosopis glandulosa torreyana (L. D. Benson) M. C. Johnston USA: New Mexico at the edge of the open, arid right-of-way o...  J. Barrell & S. A. Spongberg 66-190 1966-7-25 
Onagraceae A: 01671720  Epilobium haleanum  Haussknecht USA: Colorado just west of the East River and the road to ...  J. Barrell & S. A. Spongberg 77-66 1966-7-1 
Oxalidaceae A: 01585006  Oxalis decaphylla  Kunth USA: Arizona near the Horseshoe Cienaga, a few miles nort...  J. Barrell & S. A. Spongberg 66-197 1966-7-25 
Papaveraceae A: 01856615  Argemone pleiacantha  Greene USA: New Mexico right-of-way of Route 60, a couple of miles ...  J. Barrell & S. A. Spongberg 66-192 1966-7-25 
Pinaceae A: 00396043  Cedrus deodara  (Roxburgh ex Don) G. Don USA: Arizona in the town of Bisbee   J. Barrell & S. A. Spongberg 66-205 1966-7-27 
 A: 01113397  Pseudotsuga menziesii  (Mirbel) Franco USA: Colorado some six miles southwest of Gunnison   J. Barrell & S. A. Spongberg 66-26 1966-6-15 
Plantaginaceae A: 02212548  Callitriche palustris  Linnaeus USA: Colorado summit of the basaltic ridge between Powderh...  J. Barrell & S. A. Spongberg 193-66 1966-8-15 
 A: 02002047  Penstemon ambiguus  Torrey USA: New Mexico right-of-way of Route 85, about ten miles so...  J. Barrell & S. A. Spongberg 138-66 1966-7-25 
 A: 02002046  Penstemon ambiguus  Torrey USA: New Mexico right-of-way of Route 85, about ten miles so...  J. Barrell & S. A. Spongberg 138-66 1966-7-25 
 A: 02122741  Penstemon strictus  Bentham USA: Colorado embankment of the Gold Basin Creek road; abo...  J. Barrell & S. A. Spongberg 55-66 1966-6-22 
 A: 02122919  Penstemon teucrioides  Greene USA: Colorado on the southwest-facing slope of Mt. Ouray o...  J. Barrell & S. A. Spongberg 66-149 1966-7-19 
 A: 01802236  Plantago eriopoda  Torrey USA: Colorado along the bank of Hot Springs Creek, just no...  J. Barrell & S. A. Spongberg 66-138 1966-7-18 
 A: 01805964  Veronica peregrina  Linnaeus USA: Colorado shore of Dry Lake in Dry Lake Park, about tw...  J. Barrell & S. A. Spongberg 161-66 1966-8-2 
Poaceae A: 01813715  Bothriochloa springfieldii  (Gould) Parodi USA: New Mexico [data not captured]   J. Barrell & S. A. Spongberg 156-66 1966-7-28 
Polemoniaceae A: 01104092  Ipomopsis longiflora  (Torrey) V. E. Grant USA: New Mexico Peloncillo Mountains, near Route 80 and a mi...  J. Barrell & S. A. Spongberg 152-66 1966-7-28 
 A: 01571308  Phlox caespitosa  Nuttall USA: Colorado on the east-facing slope of Calf Creek Plate...  J. Barrell & S. A. Spongberg 66-82 1966-7-3 
 A: 01694341  Polemonium foliosissimum  A. Gray USA: Arizona near the Horseshoe Cienaga, a few miles nort...  J. Barrell & S. A. Spongberg 66-195 1966-7-25 
Polygonaceae A: 01618032  Eriogonum alatum  Torrey USA: Colorado on the east bank of Prosser Creek, about thr...  J. Barrell & S. A. Spongberg 66-46 1966-6-24 
 A: 01618033  Eriogonum alatum  Torrey USA: Colorado slope behind the Quarter-circle Circle Ranch...  J. Barrell & S. A. Spongberg 186-66 1966-8-11 
 A: 01618034  Eriogonum alatum  Torrey USA: Colorado at the western edge of Razor Creek Park, abo...  J. Barrell & S. A. Spongberg 66-50 1966-6-25 
 A: 01618816  Eriogonum coloradense  Small USA: Colorado growing in the Piedra ash deposits of Cochet...  J. Barrell & S. A. Spongberg 66-243 1966-8-11 
 A: 01652531  Eriogonum flavum  Nuttall USA: Colorado growing in Cochetopa Park ash deposits; angl...  J. Barrell & S. A. Spongberg 66-245 1966-8-11 
 A: 01851316  Eriogonum jamesii  Bentham USA: New Mexico east-facing slope of San Antonio Mountain, j...  J. Barrell & S. A. Spongberg 132-66 1966-7-24 
 A: 01851600  Eriogonum lonchophyllum  Torrey & A. Gray USA: Colorado canyon opening onto the floodplain of the Gu...  J. Barrell & S. A. Spongberg 66-67 1966-6-28 
 A: 01966558  Eriogonum microthecum simpsonii (Bentham) Reveal USA: New Mexico San Antonio Mountain, just south of the Colo...  J. Barrell & S. A. Spongberg 133-66 1966-7-24 
 A: 01986754  Eriogonum palmerianum  Reveal USA: New Mexico right-of-way of Route 60, a couple of miles ...  J. Barrell & S. A. Spongberg 66-194 1966-7-25 
 A: 01966430  Eriogonum rotundifolium  Bentham USA: New Mexico Route 85, some fifteen miles south of Belen   J. Barrell & S. A. Spongberg 66-186 1966-7-25 
 A: 02043258  Eriogonum umbellatum aureum (Gandoger) Reveal USA: Colorado at the junction of Route 149 and the old roa...  J. Barrell & S. A. Spongberg 66-56 1966-6-28 
 A: 02364717  Persicaria coccinea  (Muhlenberg ex Willdenow) Greene USA: Colorado between Route 50 and Tomichi Creek, about se...  J. Barrell & S. A. Spongberg 66-144 1966-7-18 
Portulacaceae A: 01859785  Lewisia pygmaea  (A. Gray) B. L. Robinson USA: Colorado on the very knife-edge of the Continental Di...  J. Barrell & S. A. Spongberg 66-152 1966-7-19 
Ranunculaceae A: 01707157  Anemone multifida  Poiret USA: Colorado on the west bank of the canyon of Razor Cree...  J. Barrell & S. A. Spongberg 62-66 1966-6-24 
 A: 01708963  Aquilegia coerulea  James USA: Colorado on the south-facing slope of Sawtooth Mounta...  J. Barrell & S. A. Spongberg 66-92 1966-7-5 
 A: 01663437  Ranunculus cardiophyllus  Hooker USA: Colorado on the floor of Dry Lake Park, about three m...  J. Barrell & S. A. Spongberg 66-35 1966-6-19 
 A: 01665863  Ranunculus macauleyi  A. Gray USA: Colorado east-facing slope of Calf Creek Plateau, abo...  J. Barrell & S. A. Spongberg 84-66 1966-7-3 
 A: 01838618  Thalictrum alpinum  Linnaeus USA: Colorado on the shore of a tarn on the east-facing sl...  J. Barrell & S. A. Spongberg 82-66 1966-7-3 
Rosaceae A: 01587344  Cercocarpus montanus  Rafinesque USA: Colorado along the Gold Basin Creek road; about ten m...  J. Barrell & S. A. Spongberg 66-40 1966-6-22 
 A: 01606065  Fallugia paradoxa  (D. Don) Endlicher USA: New Mexico Route 85; about fifteen miles south of Socor...  J. Barrell & S. A. Spongberg 66-210 1966-7-28 
 A: 01606066  Fallugia paradoxa  (D. Don) Endlicher USA: New Mexico Route 85; about fifteen miles south of Socor...  J. Barrell & S. A. Spongberg 66-210 1966-7-28 
 A: 00994757  Holodiscus discolor dumosus (Nuttall ex Hooker) Dippel USA: Colorado at the junction of Route 149 and the old roa...  J. Barrell & S. A. Spongberg 66-59 1966-6-28 
 A: 01567171  Potentilla concinna  Richardson USA: Colorado summit of Sawtooth Mountain, about nineteen ...  J. Barrell & S. A. Spongberg 88-66 1966-7-5 
 A: 01567698  Potentilla glaucophylla  Lehmann USA: Colorado in the open bottom of Henson Creek Canyon, a...  J. Barrell & S. A. Spongberg 37-66 1966-6-8 
 A: 01567699  Potentilla glaucophylla  Lehmann USA: Colorado on the very knife-edge of the Continental Di...  J. Barrell & S. A. Spongberg 125-66 1966-7-19 
 A: 01556529  Purshia tridentata  (Pursh) de Candolle USA: Colorado about six and one-third miles southwest of G...  J. Barrell & S. A. Spongberg 66-22 1966-6-15 
 A: 01556530  Purshia tridentata  (Pursh) de Candolle USA: Colorado at the junction of Route 149 and the old roa...  J. Barrell & S. A. Spongberg 66-61 1966-6-28 
 A: 01863037  Sorbus scopulina  Greene USA: Colorado just west of the East River, about four mile...  J. Barrell & S. A. Spongberg 66-73 1966-7-1 
Saxifragaceae A: 01735577  Heuchera parvifolia  Nuttall ex Torrey & A. Gray USA: Colorado primarily on and just over the edges of the ...  J. Barrell & S. A. Spongberg 66094 1966-7-5 
Selaginellaceae A: 02075275  Selaginella densa  Rydberg USA: Colorado east of the Gold Basin Creek Road, about sev...  J. Barrell & S. A. Spongberg 66-38 1966-6-22 
Solanaceae A: 01563063  Nicotiana glauca  Graham USA: Arizona on the south-facing slope of the Mule Mounta...  J. Barrell & S. A. Spongberg 148-66 1966-7-27 
 A: 01542830  Solanum elaegnifolium  Cavanilles USA: New Mexico Route 85, about ten miles south of Belen   J. Barrell & S. A. Spongberg 137-66 1966-7-25 
Talinaceae A: 01928199  Talinum parviflorum  Nuttall USA: New Mexico east-facing slope of San Antonio Mountains, ...  J. Barrell & S. A. Spongberg 66-181 1966-7-24 
Verbenaceae A: 01800480  Glandularia bipinnatifida  (Nuttall) Nuttall USA: New Mexico growing in the undisturbed right-of-way of R...  J. Barrell & S. A. Spongberg 158-66 1966-7-28 
Zygophyllaceae A: 01788032  Larrea tridentata  (de Candolle) Coville USA: New Mexico of Route 85, about fifteen miles south of Be...  J. Barrell & S. A. Spongberg 142-66 1966-7-25 
 A: 01788033  Larrea tridentata  (de Candolle) Coville USA: New Mexico of Route 85, about fifteen miles south of Be...  J. Barrell & S. A. Spongberg 142-66 1966-7-25 
 A: 01788034  Larrea tridentata  (de Candolle) Coville USA: New Mexico of Route 85, about fifteen miles south of Be...  J. Barrell & S. A. Spongberg 142-66 1966-7-25