('orLTPMt AND ROSK — NORTH AMERICAN UMHKLLIFERAK. 145 



to, th(> 



to 7.."' 

 hnut 



'2 or ;■. 



K.. 17lt. 

 .f I'ikcs 



i:'., issi, 



jJiimt' sl;i- 

 tit,"); Hllllir 



u'Htatiiiri, 

 Ih'spt'riis, 



Fid. 4t;. 



)('(Umtl<' 

 \ from 

 ; Iciitlcts 

 )ni('\vliiit 

 linciiv or 

 hcs; pi'- 



niorc^ or 



Ullltx'l 



i(l-likt'; 



3 to 5 



or loss 



)us (lis- 

 4 niiu. 



' (■(((•(/ '111, 

 Iters, r. /■: 



r l)riii t- 

 u. loni'. 

 itcrvaU. 



Ilijifh nioimtalns ol" Colorado iind extending into I'tali. 



^•inrliiinis I'Xiiiiiniiil : 



Coi.oKADo: ir<(//'7:n, ill 1S7H; typo Hpcciiiu'iis um cited under type lueality; (irays 

 Teak, aititmie :i,;{00 to 4,L'()() meters, l'<iHirs„ii IM (sinail f.iriu), Ah^'UhI, 1885; 

 same statiiiii, altitude ;!,!t!»0 meters. < 'nimhill, .]\\\y IS, 1S<»'_'; Flat Tup M..uii- 

 taiiis, altitude 'J, 700 nu-ters, and l/eadville Mimntains, altitude li, ;>()(( meters, 

 HitlKl, Jidy, 18i>4; Cameron Viw, altitude :{.(>()() meters, ('niiiilnll2~, July T), 

 ISiM; near l.eadville, Oslrrlniiil, June, ISIt'i; mountains alxive Hcu'eas, alti- 

 tude ;{,()(»(» meters, Citiirn ISti, August li, IS!*,"); near Veta I'ass, liiidlicrij, ,]n\w 

 '.'(), lilOO. 

 I'tau: Mount Kllen. Henry Mountains, altitude .'i,H(M) meters, .Jiiiiik 5(i(l(l, .Fuly 

 •J"), 1S(»4; Hromide Pass, Henry Muimlains, altitude :!,0()() nu'lers, .Ai//(.'( .")((!»5, 

 July 27, 18it4; near Fish Lake, altitude :.',7(M) meters, .A>//( ,s r)82(), August 11, 

 lS!t4. 

 We have seen no specimens of this from Tikes Peak, where <). /ko/nV/.s especially 

 ali'iunds, hut it extends over the western mountains anil into I'tali. 



We have excluded certain larger forms, with very different foliage, which have 

 linii distrihuteil as O. Iiiiiiilli.'< (('iiiiKipli rii.i (i/piinis). In the ahsence of fruit their 

 K liitionship can not he deti'rmined. If they Ix'long to Onu.ris the genus certaiidy 

 I ciiiiaiiis one (>!• t wo adilitioiial s|»e('ieH and has a moreextended range. The excluded 

 ^liK'tsare as follows: Arizona, /'<///;(((• 40, in IS()!); Fort Wingate, N. Mex., .l/^c.v/i 22, 

 M;iy 2r>, lS,s;i; (irays Peak, J'ulhrson ;{!» (largt- form), August, 1885. 



45. THASPIUM Niitt. (ion. 1: llHl. LSlS. 



("iilyx t(>oth coiispiciioiis. Fruit ovoid to ol)l<)ii^', sliohtly llattoiiod 

 doisally if at till, mostly olahi-ous. C'arpol witli o or 4 or idl tlio 

 tills stroiio'lv wiiiocd. 

 Si\ hipodimii waiitiiio-; 

 stylos loiio-. Oil tiihos 

 solitiiry ill tlio intorvids, 

 ■_' on tlio coiiiniissiiral 

 side, Sood stilcato 1)0- 

 neath the oil tllbos, 

 almost torot«> or soiiio- 

 what dor.sally Utittoiiod, 

 willi I llano face. 



l'oroiinials(t)to ladm. 

 liiuli), with toriiatoly 

 compound loiivos (divi- 

 sions sonu'tiiin's pin- 

 nate) iind Itroiid sorrato or toothed loatlt>ts (or lowiM* loaves simple), 

 mostly no involucre, involueels of small liriietlets, mostly yellow How- 

 et>. and idl the fruits pedieelled. 



I'irst species cited, 77i(f.y>iion <n(i'r)ni) Nutt. 



A ooims of 3 .spi'c'ies belon^inj;* to eastern North America. 



ha- il leaves Himjile or once ternate 1. T. tr'ifolhitnm. 



I'asil leaves twice or more ternate or pinnate. 



1/ aHots ovate, serrate to lanceolate 2. T. hdrh'mode. 



l.'uliets pinnately cut into linear or ohlong lolies H. 7'. pitmatijidum. 



Fro. 47. — Thnspinm trifoliiitum: a. h, x 8. 



