Tanacetum. | LXXVIII. COMPOSITÆ. (J. D. Hooker.) 821 
*** Leaves cuneiform, 3-fid. 
12. T. gossypinum, Hook. f. $ T.; Clarke Comp. Ind. 154; dwarf, 
densely tufted, softly woolly, leafy shoots short densely compacted clothed with 
short quadrate silky most densely imbricating leaves 4 in. long, flowering stems 
1-2 in. stout simple densely leafy with cuneiform 3-fid leaves 4—4 in., heads 1 in. 
diam. in rounded terminal woolly dense clusters, invol. bracts linear-oblong, 
margins scarious purple, receptacle hemispheric. 
Sixxm HiuaraxaA, on the Tibetan frontier, alt. 16—18,000 ft., J. D. H. 
A very singular species, forming dense cushions, at the highest elevation reached 
by flowering plants in Sikkim, resembling one of the moss-like Eritrichiwms in habit. 
The short flowerless shoots have often silvery white silky pubescence, which contrasts 
with the tawny wool of the flowering branches, which are club-shaped, the dense in- 
florescence forming the broad end of the club. The achenes are narrowly obovoid, 
with a lax pericarp and small cupular tip, and with the corollas are in. long. 
72. ARTEMISIA, Linn. 
- Herbs or shrubs, usually strong-scented. Leaves alternate, entire serrate or 
1-3-pinnatisect. Heads small, solitary or fascicled, racemose or panicled, never 
corymbose, heterogamous or homogamous, disciform; outer fl. 9 , 1-seriate, fer- 
tile, very slender, 2—3-toothed ; disk fl. D , fertile or sterile, limb 5-fid. Involucre 
ovoid, subglobose or hemispherie; bracts few-seriate, outer shorter, margins 
scarious; receptacle flat or raised, naked or hirsute. Anther-bases obtuse, entire. 
Style-arms of Y with truncate usually penicillate tips. often connate in the 
sterile fl. Achenes very minute, ellipsoid oblong or subobovoid, faintly striate ; 
perp 0.—Distris. Species about 150, in the N. temperate regions, and a few 
. American ones. 
Sect. I. Dracunculus. Heads heterogamous; outer fl. 9; disk fl. 5, 
sterile ; receptacle naked. Leaves glabrous or villous, never appressedly tomen- 
tose. 
* Perennials. 
1, A. salsoloides, Willd. ; Boiss. Fl. Orient. iii. 262 ; perennial, glabrous 
or sparsely villous, stems many strict angled pale shining, leaves glaucous 2-8- 
pinnatisect, segments slender obtuse or acute, upper quite entire, racemes simple 
or paniculately branched, heads 4-4 in. long subsessile or pedicelled broadly 
ovoid or subglobose, invol. bracts glabrous ovate or obovate-oblong obtuse pale 
with broad scarious margins, achenes glabrous. DC. Prodr. vi. 94.; Ledeb. Fl. 
Ross. ii. 560; Clarke Comp. Ind. 157. 
Western Ter, alt. 12-14,000 ft., from Rupehu(N. of Kumaon) westwards.—Drs- 
TRIB. Mongolia, Siberia, Caucasus. 
Hoot very stout, long and woody, sometimes 12 in. Leaves 1-2 in., radical many 
or 0. Racemes copious. Heads shining; flowers very few. Achenes 2-3, narrowly 
ellipsoid, +, in. long, delicately ribbed.—Clarke describes this species as biennial, but 
the root appears to be perennial. 
Var. 1. salsoloides proper; stems very numerous from the crown, racemes sub- 
simple. 
Van. 2. paniculata; taller, stem stout branched above the root, racemes panicled. 
A. Halimodendron, Ledeb.; Herb. Ind. Or. H. f. & T. (not of Turczaninow, which has 
much larger more ovoid heads 1 in. long, with longer hard invol. bracts, and achenes 
twice as large). i t 
2. A. Dracunculus, Zinn. ; DC. Prodr. vi. 97; herbaceous, perennial, 
glabrous, radical leaves 3-fid or 0, cauline sessile linear or linear-oblong acute 
entire or toothed, racemes panicled, heads subglobose j in. diam. sessile or pedi- 
VOL. III. ¥ 
