Chrysanthellum.] xxvi. cowrosmx. (J. D. Hooker.) . 311 
lobed or cut. Heads } in. diam. in flower, } in. in fruit. Achenes de in. long, equal- 
ling the invol. bracts.—-This has been united with the American and Senegal species 
by Bentham, Clarke and others; but the achenes are smaller and never broadly 
winged as in the American species. 
62*. GALINSOGA, Rutz et Pav. 
Annual herbs. eaves opposite, entire or toothed. Heads small, peduncled, 
subterminal and axillary, heterogamous, rayed ; ray-fl. few, 2, l-seriate, fertile, 
ligule yellow spreading; disk-fl. %, fertile, tubular, limb 5-fid. Involucre 
hemispheric ; bracts few, 1-2-seriate, ovate, obtuse, striate ; receptacle conic or 
elongate; pales slender, serrate. Anther-bases subentire. Style-arms of D 
acute or with an acute short tip. Achenes angled or the outer dorsally com- 
pressed; pappus of a few scarious, entire awned or fimbriate scales, of the ray 
often 0.—DizsrRIB. Species 5, tropical American. 
G. parviflora, Cav. Ic. iii. 41, t. 281; DC. Prodr. v. 677; Clarke 
Comp. Ind. 112. 
A weed in cultivated and waste places in the HrwALAYA, alt. 48000 ft., introduced 
from America. 
A weak, erect, hispid or glabrous herb, 6-12 in. high. Leaves petioled, 1-2 in., 
membranous, ovate, obtusely acuminate, 3-nerved, subserrate. Heads $ in. diam. ; 
peduncles very slender; invol. bracts broad, green. 
62**, TRIDAX, Linn. 
Perennial herbs. Leaves opposite, pinnatisect; segments few, narrow. 
Heads very long-peduncled, heterogamous, rayed; ray-fl. 9, fertile, ligulate or 
2-lipped, with the outer lip large 3-fid or 3-partite, the inner small 2-lobed or 
-parted or 0; disk-fl. D, fertile, tubular, limb elongate 5-fid. Invol. bracts 
few-seriate, outer short, broad, herbaceous; receptacle flat or convex ; pales 
membranous. Anther-bases with short, acute auricles. Style-arms of Y hairy 
above, tips subulate. Achenes turbinate or oblong, silky; pappus of short or 
long aristate, feathery bristles.—DrsrRis. Species 7, tropical American, of 
which one is introduced into India. 
T. procumbens, Linn.; DC. Prodr. v. 679; proeumbent, hirsute, 
leaves ovate or lanceolate deeply irregularly serrate, peduncles 2-3 times as long 
as the stem. Wall. Cat. 3197 ; Clarke Comp. Ind. 142. 
Abundant in various parts of INDIA, introduced from S. America. 
A weak straggling herb, 1-2 ft. long, with few leaves 1-2 in. long, and very long 
slender solitary peduncles a foot long and more. Heads $ in. diam. Achenes brown; 
pappus A in. long, shining. 
TRIBE VL—A NTHEMOIDEZJE. 
63. ACHILLEA, Linn. 
Perennial pubescent or villous herbs. Leaves alternate, narrow, serrulate or 
pinnatisect. Heads small, corymbose, heterogamous and St or homogamous 
and disciform ; ray-fl. few, 9 , rarely neuter, ligule short white pink or yellow ; 
disk-fl. J, fertile, tube terete or compressed and 2-winged, base often produced 
over the top of the achene, limb 5-fid. Invol. bracts in few series, appressed, 
margins oftea scarious and black, outer shorter; receptacle flat or elevated, 
pales membranous. Anther-bases obtuse. Style-arms of O with truncate and 
penicillate tips. Achenes oblong or obovoid, dorsally compressed, glabrous, with 
2 cartilaginous wings; pappus 0.—Distr1s. About 50, of temp. N. regions, 
