CRUCII Kl; AK (Ml 'STAR I) FAMILY) 



petioled, 15-30 mm. long: raceme crowded even in fruit : petals obovale, 

 emarginate, 5-7 rnm. long: silique subglobose, S mm. in diameter, twice 

 us lontr :i- the style; pedicels stout, recurved, 5-10 mm. long. Naked clay 

 ridges and flats; lied Desert, Wyoming. 



ii. Lesquerella prostrata A. Nels. Hull. Torr. Hot. Hub 2o: 121. IS'.)'.). 

 Tin- stellate-pubescence dense arid silvery: stem- .-.everal to many, rosulately 

 spreading, sometime- branched: crown-leaves densely rosulate, rhomboidal, 

 orbicular, oval or oblong, 5 !"> nun. long, the petioles often longer; cauline 

 few, oblanceolate to linear: raceme in fruit (i 1^ cm. long: silique BUOglobo06 

 or broadly ovate, as long as the style but somewhat surpassed by the curved, 

 spreading or recurved pedicel. '[/,. iitu- db. Hull. Torr. Hot. Club 



30: 262, 1903; L. Mam-nnii Greene, I'itt. i: :;io. 1<M)1 (?).) Wyoming, Hah. 



and probablv Colorado. 



4. Lesquerella condensata A. NY1>. Hull. Torr. Hot. Club 20: 22X. ixw. 

 Depn the caudex mult icipit al, not rising above the ground, 

 acaulesrent, the linear leaves and small crowded racemefl on the crowns and 

 sube(juul: petals spatulate, about (i mm. long: silique ovate, compn 

 summit, :> mm. long, two-ovuled in each cell (usually only one maturing). 

 (L. parrnln (ireene. Pitt. ! : oOS. P.K)1., Harren and rocky slopes; one of the 

 earliest plant- to bloom; southern Wvoming and in Colorado. 



5. Lesquerella al pi na (.Nutt.j Wat-. Proc. Am. . \cal. 23: 251. iss.s. Cau- 

 dex few-branched; the branches usually rising a few cm. above the ground, 

 thickl;. .'. ith the pern-tent Ieaf-ba0es: leaves all linear, t lifted on the 

 .several crowns and on the ba-e of the very ihoi raceme slender- 

 I>edunculate, often few-flowered; the pedicels slender-, erect oi- recurved, much 

 longer than the silique: siliqu- 'Unewhat angle(l but scarcely eom- 



:. i', 1 mm. long, nearlv equaled by the -lender M vie. (/.. sjinttmlatn. 

 Kydb.Cont. I". S. Nat. Herb.':;: 86. IS upper Wiasouri region. 



0. Lesquerella curvipes A. Neb. Hull. Torr. Hot. Club 25: 3):,. Is'.tx. 

 numerous on the expanded crown of the woody root, in fruit \.:> ;', dm. 



long: radical leaves oblanceolate, on margined petiole-; cauline oblanceolate 



to linear, with a narrowed petiole-lil-.- 6 cm. long: cliques ovate, com- 



i at summit, gibbously convex toward the base, about s mm. long; 



what shorter; pedicel-. 1 'J cm. long. " s "-shaped (the 



proximal part' curved upward, the distal downward, with ascending tip;: 



2 in each cell, rarely 1 or '.'>. Wyoming. 



7. Lesquerella montana (dray) Wats. Proc. Am. Acad. 2ii: 2.11 

 Caudex u.-ually simph-. th- MIS rcwulate-spreading: stemi mo-tly 



,sim[>le, -hort : crown-1 .ded, some of them broad (orbicular, oboxate, 



or rhomboid), passing into the oblanceolate one- of the stem , 1 _' cm. long: 

 siliques oblong, not. compres.-ed at -umrnit but sometime- slightly <juad- 

 rangular, about f) mm. long, somewhat exceeding the style, u-ually en 

 the upwardly turned tip o! the widelv divaricate ,-ube(jual [jedicel. (L. 

 db. Hull. Torr. Hot. club 29:237, P.oii; L. rosiUata A. Nek. Hull. 

 Torr. Hot. Club 2.">: L'O/i. L8980 Colorado and -outhern Wyoming. 



H. Lesquerelk valida C Ireene, Pitt. ! 68. IS?M. Silvery lepidote-atellate, 

 the leave- and i'-cumbent, 1 2 dm. high: 



basal ! tire or toothed, obovatc or spatulate, petioled; cauline (jb- 



lanceol '.<>r\ and den-e, hardly rnor-e than corymbose even in 



fruit: siliqiK '.rnewhat comf)n'ss-d, tipped with a style of half their 



own length; the cells about o-ovuled. Southern Colorado and New Mexico. 



I). Lesquerella Fendleri (Cray) Wats. Proc. Am. Acad. 2:i: 2.".1 . L888. White- 



nt : caudex multicipital .'T-al. slender, erect. 1 2 dm. high: 



all linear or narrowly oblanceolate: raceme -hort, dense: siliques 



glabrou-, s.ubglobo.-e, 4-6 mm. in diameter, on '-lender much longer 



pedice Le about equal in length; the cells 10-10-ovuled. Southern 



:'|0 tO Te 



10. Lesquerella Engehnannii Wats. 1. c. 254. Silvery canescent : stem- 

 low and simple or taller and branched, 1 -'.', dm. long: some of the radical 

 leaves broad (orbicular to oblanceolate), petioled; cauline oblong or oblanceo- 



