LEGUMINOS^. (PULSE FAMILY.) o5 



serrulate: Jiowers in dense ovate spikes, at lem/t/i rrjltud, ochroleucous : calyx- 

 teeth very villous, lax, nearly effiiallint/ the jhtals : ov.irv hairv. — Torr. & Gray, 

 Fl. i. 3L3. S. W. Colorado, X. California, ()reg<.ii and Malio. 



3. T. longipes, Nutt. slender: stim usmtlty >/labrous, the leiijlrtt and 

 calyx sparin(jty villous: leaHets narrowly oblong to linear, serrulate: htads 

 ovate, looser than in the last, not le/Jexed: flowers ochroleucons or tinged with 

 ])urple : calyx-teeth straight, more or less hairy, shorter than the corolla. — 

 Torr. & Cray, Fl. i. 314. From N. Arizona and Colorado to the British 

 boundary, and west to the Pacific. 



Var. (?) latifolium, Hooker. Often low: leaflets broader: flowen* 

 pedicellate in loose heads. — With the species. 



4. T. Kingii, Watson. (I'lahmusfliroui/houf: leaflets oblong to oblanccolate, 

 very acute, sharjdy denticulate: peduncles exceeding tlie leaves: heads naked, 

 the purplish Jloicers at lemjth ro flexed; the rachis often pn^dnced above the 

 head, with a few spinesceut bracts : caly.r-teeth (tlxmt onf third the length of the 

 corolla. — Bot. King's Exp. 59. T. I/aydcni, Porter in Ilayd. Hep. 187L 

 From Montana through Idaho and Utah to N. E. California. 



-»- -«- Dwarf, cespitose, acaulescmt or nearly .to. 

 ■M. Glabrous : floioers targe: ovary smooth, linear, 4 to l-ovtded. 



5. T. nanum, Torr. Leaflets small, ohlanceolate, serrulate, strongly veined : 

 peduncles very short, radical: Jiowers 1 to 3, dark purple: calyrtreth broad, 

 acnte, shorter than the tube: ovary 4 to ^-ontlcd. — Mountains of Colonido and 

 Utali. 



6. T. Brandegei, Watson. Leaflets elliptic-oblong, thin, entire: peduncles 

 about equalling the leaves : flowers spicate in a loose naked head, purplish : ralyx- 

 teeth lanceolate, acuminate, a little longer than the tul>e : ovary stipitatf, lovuled. — 

 Proc. Am. Acad, xi. 130. S. W. Colorado and N. W. New Mexico. 



•»-•• •4-^ Pubescent : Jiowers small : ovary nbovate, densely villous, 2-ovuled, at itnifth 

 exscrted Jrom the calyx. 



7. T. gymnocarpon, Nutt. Leaflets ovate-oblong to oblance<date, .'ser- 

 rate : peduncles shorter than the leaves : flowers 2 to 6, in rather close heads, 

 on short pedicels: calyx-teetli equalling the tul)e. — Torr. & Gray, Fl. i. 320 

 Bot. King's Exp. 62, t. 8. W. Wyoming and the Wasattli. 



♦ * * Leafets 3 ; heads subtended by a mostly monnphyllous usually many-cleft 



involucre, axillary : flowers in whorls, sessile or marly so, not rffici''d. 

 ■t- Low or dwarf perennials, acaulesrent or nearly so : flowers rather large: invo- 

 lucre parted, somewhat srarious. 



8. T. Parryi, (iray. (ilabrous, often stout: Imjlts ol>long /<» olJancfolate, 

 sharply ilniiatc : bracts 5 to 7, Mong, obtuse : flt)wers 20 or m«)re in a head : calyx- 

 teeth broadly sul)ulate, equalling the tulu': con>lla rose-purple. — .\ni. .b>nr. 

 Sci. II. xxxiii. 409. — Mt)untains of Colorado, Utah, and Wyoming. 



9. T. dasyphyllum, Torr. & Gray. Cesjiitose : leaves, jHduncUs, and 

 calyx more or less silly : haflets linear lanceolate, entire: head globose, on a long 

 radical peduncle: bracts very small, unequal, lanceolate: calyx-teeth linear, 

 much lonqer ihnn tlir tube. — Mountains of Colorado, and tho Uint.a.'*. 



10. T. andinum, Nutt. Cespitose, silk-y-ranesrent : Iiaf1>ts rigid, cunrat^- 

 oWonr/, TH/m, strongly veined : peduncles radical, about f<|nalling the leavw 



