80 



Utali, Wulifeatch Mts., near Halt Lake City, and on Antt-lopc Island, 

 :)()00 f€et altitude {Walficn. in 18(1!)), near Ogden ((Umllcr, in 1.S72), 8 Utah 

 {('apt. F.M. Bishop, in 187:i), Utah Valley (./o«r.s KISO, in 18S(I). Fl. May 

 and June. 



t t F/oxccrs purple. 



JO. C. purpureus Watson, Am. Nat. vii. ;}00. Whole plant 

 jjiirplish, nearly acaulesccnt, glabrous: leaves broadly triangular in 

 outline, 'Z to 8-pinnate, the broad segments coarsely mucronate- 

 dentate: peduncles stout, exceeding t/.e leaves: umbel unequall}' 

 8 to r2-rayed, with mostly no involucre, and involucels of lanceo 

 late bractlets united near the base and nearly equalling the yellow- 

 ish-purple flowers: fruit 4 lines long, each carpel with 3 to 5 broad 

 membranous wings: oil-tubes 4 or 5 in the intervals, S on the com- 

 missural side: seed-face deeply sulcate. 



New Mexico {Palmer) and N. Arizona [Mrs. h'. I'. Thompson. Pahnci 

 177, in 1877) Palmer 177 may be from S. Utah. 



11. C. Jonesii. Nearly acaulesccnt, glaucous and glabrous: 

 leaves ternate then pinnate to bipinnate, with ultimate segments 

 rather broad and mucronate-toothed : peduncles stout and longer 

 than the lea\es, *,' to 7) inciies high: umbels 5 to 12-rayed, with no 

 involucre and involucels of small lanceolate bractlets somewhat 

 united at base; rays about an inch long; pedicels 2 to 8 lines long; 

 fruit globose, 4 lines in diametei', the T) carpel wings broad and 

 thin ( ^•ery thick at base): oil-tubes solitary in the very narrow 

 intervals, 2 on the commissural side: seed-face deeply sulcate. 

 (Fig. 82.) 



Frisco, Utah, altitude 8000 feet, June 22, is,s(i {Jones 1808). 



Distributed as C. purpurms, but differing decidedly in its fruit, whicli 

 lias wings very thick at base, veiy narrow intervals in which are solitary 

 oil-tubes, and but 2 oil-tubes on the conunissui-al side. 



12. C. cinerarius Gray, Froc. Am. Acad. vi. 585. Acau- 

 lesccnt, with subterranean creeping rootstock : peduncles (2 or 3 

 inches high) and petioles glabrous: lea\x's somewhat cordate in 

 outline, bipinnate with toothed segments, glaucous-cinereous with 

 a fine rough pubescence: rays few, short or almost none; involu- 

 cels of numerous united somewhat membranous long-acuminate 

 segments: fruit 8 lines long, with rather narrow undulate wings: 

 oil-tubes 8 in the interv:ds, several on the commissural side; seed 

 narrow, strongly curved, with a deep central channel. 



