icd or I "lit 



iitcly <li>^- 

 ■rc, in\"l- 

 iliiic. iiiul 

 ■(,iir< , and 



rorLTER AND ROSE NORTH AMERICAN UMBELUKERAK. 1 TT) 



,, 7//>/«r, .svv^/, rrfcrriiij; to the narrow aiul dfcj) sulcus of the s<'«'(i 



I.H'C. 



'Iy|)(> species, Ci/ninpfi rnK loinjljxs Wiitsoii. IJot. Kiny Surv. I:i4. 



1^7i. 



A yrouj) of !♦ sjM'cics, i-aiitfin},^ from Idaho to soutlici'ii California in 

 till' (Jrcat Hasin rcjjfion. 



riic ;.'('mis Ci/iiKijiliriiH, witli its thick corky winpH and very tint scc<l witii plane 

 iMci', is very different from AiilimfHrniiiiii, wlmse cl(is«'st atlinity is witli lliri/.rio, 

 liom wliicli it differs clii«'tiy in its less Hattcne(l seed with usually narrow and deep 

 MilcMs, and in izeucnil in its leaf habit. 



Till' cluster of piiniate leaves and peduncles ])orne at tiie sununit of a more or less 

 ilougated atem, which is conspicuously sheathed at luise. 

 I'lowers yellow. 



Involucre wanting 1. .1. Imv/iprK. 



Involucre re8end)ling the involncels l'. .1. tjhniriiiii. 



I'lowers white. 



Scahrous pulierident )5. .1. iralsunl. 



( ilahrous and glaucous 4. .1. ihajiaixf. 



l.ciives clustered at hase. 

 Wings mucli thickened at insertion. 



l''l:-wers greenish yellow; fruit 10 nnn. long 5. A. j)iniiimhil/n)st: 



■•'lowers i)urple; fruit (i to S mm. long. 



Foliage gla))rous (>. .1. jomsll. 



lM)liage with tint' rough pulK'sceuce 7. .1. fimrdriiiiii. 



W ings thin at in.sertion. 



Leaves twice or thrice piiniate 8. .1. juirinimini. 



Leaves jjinnat*', with lobed oi dividt'd pinuic it. .1. niKrl. 



1. Aulospermum longipes (Watson) (". & R. Fkj. 5*2. 



< 'i/inoptrritx Iniii/iftin Wntxim, Hot. King Surv \'24. 1871. 



(ilabrous smd j^laiicous; leaves pinnate to hipinnate, the ultimate .si'jr- 

 iiieiits oval and mucronuhito; fruitiu}^ pedmu'les lonocr than the leaves. 

 Iti (o 25 em. loiio" umltols T) to l(>-rayod, with no involucre, and invo- 

 lncels of suhuliite iU'iimiiiiiti^ hrtictlets: rays 12 to 4'' mm. lono-; pedi- 

 cels 4 to (> mm. lonj»'; fruit «! to S nun, lono', the 5 carpel win»i's 

 hroi. 1 and thin, somewhat iin(M|Uiil: oil tuhes ;5 in the intervals, t! on 

 tile coimuissural side; .seed face with deep and narrow sulcus, which 

 liroadens into ii central cavity. 



Type locality, "Wahsatch Mountains, lu'ar Salt Ijidce (Mty ITtah], 

 and on Antelope Island;" collected liy Waf.so/t, in). 451. May. .June, 

 lNti;»: type in U. S. Nat. Herb. 



I'tiih. northern Colorado, iind southwestern Wyoiniiijj. 



■^piriiiii'iix I'.ainilncd: 



Vr.wi: Walisatcli Mountaiu.s, ]Viits(iii 4'>1, in hSW); ('((pialn UixlKip ^'t/m 1872: 

 .Fuah, Joinx, April ."l, 1880; Kairview, Jomn 5r)r)4c, June :W, 1894, and f^ii27h, 

 .fuly l.S, I8«>4; Sandy, ./<n,rx, May 24, 1805; (Mty Creek Canyon, ./'-/«■••<, Ajiril 

 4, 180(). 



CoLoKADo: Yampa River, Routt County, Alice EaHh('uo(l,Jii\y I't, 1891. 



\Vyo.ming: Piedmont, Uinta County, Xelnon 4574, 4575, June 7, 1898. 



