Boraginaceae GH: 01995392 Lappula squarrosa (Retzius) Dumortier USA: Wyoming 10 miles north of Muddy Gap D. F. Costello & R. C. Rollins 2073 1936-6-20
GH: 02060090 Oreocarya cinerea Greene USA: Wyoming half way between Lander and Three Forks D. F. Costello & R. C. Rollins 2073a 1936-6-16
GH: 02060361 Oreocarya flava A. Nelson USA: Wyoming Roadside 10 miles north of Muddy Gap D. F. Costello & R. C. Rollins 2075 1936-6-20
Brassicaceae GH: 00932323 Boechera divaricarpa (A. Nelson) A. Löve & D. Löve USA: Wyoming Dickinson Park - Wind R. Mts. - 15 mi. west ... D. F. Costello & R. C. Rollins 2046 1936-6-18
GH: 00932652 Boechera holboelii pendulocarpa (A. Nelson) N. Snow USA: Wyoming Dickenson Park, Wind River Mountains, 15 mil... D. F. Costello & R. C. Rollins 2047 1936-6-18
GH: 00944125 Boechera stricta (Graham) Al-Shehbaz USA: Wyoming eastern slope of the Wind River Mountains, 8... D. F. Costello & R. C. Rollins 2065 1936-6-18
GH: 00986449 Descurainia incisa (Engelmann) Britton USA: Idaho 6.2 miles S of Banner Summit, State Hwy. 21,... D. F. Costello & R. C. Rollins 86140 1986-6-28
GH: 01084214 Descurainia pinnata intermedia (Rydberg) Detling USA: Wyoming 10 miles north of Muddy Gap D. F. Costello & R. C. Rollins 2074 1936-6-20
GH: 00971461 Draba oligosperma Hooker USA: Wyoming Dickenson Park, Wind River Mountains, 15 mil... D. F. Costello & R. C. Rollins 2044 1936-6-18
Fabaceae GH: 02049966 Astragalus pectinatus (Douglas ex Hooker) Douglas ex G. Don USA: Wyoming 12 miles east of Parco D. F. Costello & R. C. Rollins 2040 1936-6-16
GH: 02131509 Oxytropis sericea Nuttall USA: Wyoming At the top of the grade D. F. Costello & R. C. Rollins 2060 1936-6-18
Plantaginaceae GH: 02120023 Penstemon gracilis Nuttall USA: Wyoming eastern slope of Wind River Mountains, 10 mi... D. F. Costello & R. C. Rollins 2057 1936-6-20
Polemoniaceae GH: 01574719 Phlox multiflora A. Nelson USA: Wyoming Dickinson Park, Wind River Mts., west of Win... D. F. Costello & R. C. Rollins 2056 1936-6-18
Ranunculaceae GH: 01659020 Delphinium geyeri Greene USA: Wyoming half way between Three Forks and Lander D. F. Costello & R. C. Rollins 2037 1936-6-16