Stobea.| COMPOSIT (Hary.) 487 
Stem wings short and broad ; 
lys. glandular above... ... (9) onopordifolia, 
Lower (medial) lys. obovate- -oblong, re- ; 
pand, very rough above .,. ... (10) Radula, 
Heads caillehas radical and lower leaves on spine-bordered petioles : 
Radical lvs. rigid, pinnatifid or sinuous lobed, tapering at base: 
lvs. sparingly-cobwebbed or 
nude beneath au 1) petiolata. 
Rad. lvs. white-woolly beneath . . (12) echinopoda, 
Radical lvs, thin, oblong or elliptical, 
repand ; spines minute ... ... ... (13) membranifolia. 
Heads discoid : 
Lvs. sinuato-pinnatifid, spinellose above, cob- 
webbed beneath _.. . (8) spheerocephala. 
Lys. lanceolate, sharply 1 \-toothed at each 
side, tomentose canescent .. oy pep (21) ene 
(b.) Cauline-leaves sessile, very shortly subdecurrent or - adnate ; stem not winged : 
Radical lvs. conspicuously petioled : 
Rad. lvs. cordate, oblong, or oval, entire or sinuous-lobed; heads 
radiate : 
— land-setose ; lvs, thin, scabrous above, 
very small marginal spines... (14) speciosa. 
Stem pau glabrous, lvs. rigid, glabr. above, 
with strong marg. spines and interposed 
spinules = (15) acanthopoda. 
Rad. lvs. pinnati- partite | or deeply pinnatifid : heads discoid : 
Lvs. spinellose above, deeply pinnatisect .. sa epitrachys. 
Lys. smooth above, pinnati-partite ; 
petiole and crown of root very woolly .. an eriobasis. 
Radical lvs. not petioled : 
Stem shrubby, much branched ; Ivs. pinnatipar- 
tite, the lobes 4-5 pair, rigid, nearly entire, 
spine-tipped (18) cardopatifolia, 
Herbaceous, branching " gland- -puberulent on all 
young parts; lvs. concolourous, the radical 
sinuato-pinnatifid, with rounded lobes ... (19) onobromoides. 
Herb., simple-stemmed ; rad. lvs. glabr. above, 
white-woolled beneath, pinnatisect, lobes 18-20 
pair, simple or 3-5-fid, spine-pointed ... ... (20) multijuga. 
Sect. 2. Eu-Srop#za. Ovaries and young achenes pubescent or silky ; ripe achenes 
sometimes becoming glabrous. (Sp. ea 
(a.) Cauline leaves decurrent in long, spine-bordered stem wings : 
Radical lvs. large, obovate or oblong, entire or pinnatifid ; cauline small : 
Rad. lvs. cobwebbed-cottony or woolly beneath : 
Rad. lvs, elongate, sinuous-pinnatifid, cob- 
webbed ; fl. purple (or white)... (22) purpurea. 
Rad. lvs. obovate-oblong, subentire, white 
beneath ; fl. yellow... (23) rhapontica, 
Rad. Ivs. concolorous on both sides, nearly glabrous : 
Stem wings narrow, their — = 
4-6 lines long a! et vee see (24) @ristosa, 
Stem wings ad, eir marg. “spines 1-2 
lines long —... «+ wee «ee (25) platyptera. 
No large rad. lvs. ; stem leafy to the summit ; lys. " spinoso-setose above : 
Lys. close-set, lanceolate, 2-3 in. long, 4-6 lines 
WHOS coc. ae ee ss» se. (26) echinacea, 
Lvs. subdistant, linear, 1-1} in. “long, 2 L wide (27) Gerrardi. 
(b.) Cauline leaves sessile, or very shortly decurrent ; stem not winged : 
