314 LXXVIII, composir#. (J. D. Hooker.) [ Allardia. 
Western Trpet; Ladak, Stoliczka; Lahul, Jaeschke, Stewart. 
Habit of A. tomentosa, and probably a state of that plant, but quite glabrous; the 
heads are too young to describe, 
DOUBTFUL SPECIES. 
A. INCANA, Klatt in Sitzunb. Münch. Akad. 1878, 88, with trilobate cano-tomentose 
leaves, is possibly A. vestita or nivea, but the description is insufficient to identify it. 
66. CHRYSANTHEMUM, Linn. 
Perennial or annual herbs, rarely shrubs. eaves alternate, entire toothed 
lobed or pinnatitid. Heads large, terminal, long-peduncled, or smaller and 
corymbose, heterogamous, rayed (very rarely disciform); ray-fl. Q, l-seriate, 
fertile, ligule spreading white yellow or rosy; disk-fl. 5, fertile, tube terete or 
2-winged, limb 4-5-fid. Znvolucre hemispheric or broader; bracts oc -seriate, 
broad, appre:sed, inner with scarious tips, outer shorter often with scarious 
coloured margins; receptacle various, naked. . Anther-bases obtuse, entire. 
Style-arms of Y with truncate penicillate tips. Achenes subterete or angled, 
variously ribbed or winged; pappus O or short, or a cup or auricle.— DISTRIB. 
Species about 80, of N. temperate regions. 
Two species of Chrysanthemum are cultivated in Indian gardens, and indeed all 
over the world. One, the common garden chrysanthemum, C. indicum, Linn. ( Wall. 
Cat. 3227; Roxb. Fl. Ind. iii, 436 ; Clarke Comp. Ind. 146. Pyrethrum indicum, 
DC. Prodr. vi. 62), is a plant only known in a garden state. The other, C. corona- 
rium, Linn. (DC. Prodr. vi. 64; Clarke Comp. Ind. 147. C. Roxburghii, Desf.; DC. 
l.c. Pyrethrum indicum, Roxb. Fl. Ind. iii. 436. Matricaria oleracea, Ham. in Wall. 
Cat. 3229), is also only known in India in a garden state, but is a native of the Medi- 
terranean region. 
1. C. tibeticum, Hook. f. $ "TL: Clarke Comp. Ind. 147; shrubby, 
puberulous and viscid, branches many slender, leaves 1-3 in. }-pinnatifid or 2- 
p segmenta linear narrow acute or obtuse, heads long- peduncled, invol. 
racts pubescent and viscid, margins scarious and purple, outer lanceolate acute, 
inner oblong obtuse, achenes subterete, pappus obscure or 0, ? Pyrethrum 
Roylei, DC. Prodr. vi. 56. 
Western Tirer, alt. 9-13,000 ft.; Shayuk valley, and Indus valley at Kalatza, 
Thomson. 
Viscid and aromatic, 6-8 in. high; stems branching from the base; branches 
woody below, stiff, leafy upwards, terminating in solitary heads j-1j in. diam.; re- 
ceptaele small, eonvex ; ligules large, numerous, white or rosy, spreading, linear-oblong, 
tips entire; achenes immature.—Royle’s specimens of Pyrethrum Roylei are very poor ; 
they are more glabrous, the leaves are more deeply pinnatifid than Thomson's, and the 
heads many sessile, but I cannot separate it satisfactorily as a species. 
2. C. Stoliczkai, Clarke Comp. Ind. 147; shrubby, branched from the 
base, pubescent and viscid, leaves 3-1 in., radical petioled, cauline sessile linear 
1-2-pinnatifid, segments slender linear acute, heads long-peduncled, invol. bracts 
pubescent and viscid, margins scarious purple, outer lanceolate, inner oblong ob- 
tuse, achenes narrow strongly 5-ribbed, pappus a large membranous dimidate or 
lobed sheath, 
Western Tiset; Dras, alt. 9000 ft., Thomson; Kargil, Stoliczka. 
Habit of C. tibeticum, but the branches are longer, more slender, and less divided, 
the leaves more divided, the receptacle broader, the outer acute invol. bracts more 
numerous, and the pappus quite different, half as long as the achene. The ligules are 
numerous, large, spreading, and white.—C. Griffithii, Clarke, of Affghanistan, is very 
closely allied to this, and has the same pappus (which Clarke has overlooked in C, 
Btolicz kai), 
