348 COMPOSIT ( Harv.) [ Senecio. 
100 fi. ate 
(d.) Heads radiate ; disc and ray fi. yellow : 
Crown of rootstock clothed with long, silky-woolly hairs : 
Stem, bluntly-pinnatifid lvs., and invol. glabrous (41) eriobasis. 
Stem, bluntly-pinnatifid lvs., and invol. scabro- 
Crown of rootstock nude, not silky or woolly : 
Seabro-pubescent, viscidulous ; or sparsely pubescent : 
Rad. leaves inciso-pinnatifid, or sinuate-pinnatifid : 
Inv. scales scabro-pubescent : 
Rad. lvs. inciso-pinnatifid, lobes 
Heads solitary, or 2 (on long pedicels), about 
aces .:+ se (40) hypocheeridens. 
(42) erosus. 
blunt Bi Gwe Sa ee i OAc, 
Rad. lvs. elongate-lanceolate, sin- 
uate-pinnatifid s+ ees «+. (44) robertieefolius.. 
Inv. scales glabrous ; lvs. pinnatifid, 
with many narrow lobes : (45) spireifolius. 
Rad. lvs. oblong, toothed ; heads corymbose (46) hieracioides. 
White-woolly, on leaves and involucre ; rad. lvs. 
pinnati-partite eee SORe Wvs Aaa: sem: (47) elbifolins. 
Glabrous except pedunc. and invol. ; rad. lys. 
narrow, toothed, nerveless ... (48) reptans. 
Glabrous, subovoid ; rad. lvs. obovate, crenulate ; 
scape nude, one-headed ... ... . (49) Bellis. 
§ 3. PLanTacIneI. Rootstock perennial. Radical leaves several, petioled, coria- 
ceous, linear, lanceolate or ovato-lanceolate, glabrous or cottony (not viscoso-pubes- 
cent), entire (rarely repand), mostly callous-denticulate. Stem herbaceous, subsimple, 
nude or leafy, its leaves clasping or sessile. Heads many-fi., conspicuously calycled, 
radiate or discoid ) ; fl. yellow, rarely purple. (Sp. 50-65.) 
(a.) Heads radiate ; dise and ray-fl. purple vse eves... (50) Dregeanus, 
oe Heads radiate ; disc and ray-fl. yellow : 
Crown of rootstock very woolly ; lvs. ovate-oblong (51) coronatus. 
Crown of rootstock nude, not silky or woolly : 
Cauline lvs. sessile (not decurrent at base) : 
« Achenes quite glabrous : 
Calycle of many bracteoles, much shorter than the invol. ; 
eo Disc-fl. very many ; rays 10-15 (52) Albanensis. 
a aie Dise-fi: 155 -raye §. os Re (53) inornatus. 
Calycle of few, very long bracteoles ; 
rays very long, many = 
Achenes striate, scaberulous or pubes 
Cobweb-cottony; lvs. lanceolate, 1 
inches long ; achenes 4 1. long 
Glabrous ; Ivs. oblong, 3 inches long, 
(54) caudatus. 
oe 
Hic 
(55) macrospermus. 
8-9 1. wide ; ach. pubescent... ... (56) monticolus. 
Glabr. or cobwebby ; lvs. linear, 1 line 
wide ; ach. villous... ... ... ... (57) gramineus. 
Achenes flattish, ciliate on the edges .... (58) erispus. 
Cauline lvs. decwrrent at base, as a stem wing : 
Decurrent portion of leaf coarsely toothed (59) decurrens, 
Decur. port. of leaf crenato-dentate ... ... (60) digitalifolius. 
(c.) Heads discoid ; flowers yellow : 
Inv. calycled, of about 20 narrow-linear, acuminate scales : 
Pedicels and involucre scabro-pubescent ; cauline 
‘ : ie (61) polyodon. 
 ehdy ga idan SE 
Pedicels and invol. quite glabrous : 
Cauline lvs. clasping, toothed or denticulate (62) erenulatus. 
Cauline leaves sessile, elongate-linear, with : 
Rivolithe edges = go ss (63) striatifolius. 
