4G IXXI. C0MP0SIT.T5. 



black. FI. B. I. v. 3, p. 311 ; C. B. Clarke, Comp. Tnd. p. 142 ; Trim. 

 Fl. Ceyl. V. 3, p. 42; Woodr. in Journ. Bomb. Nat. v. 11 (1898) 

 p. G50. — Flo\^'er.s more or less throughout the year. 



A n;itive of Central America. It has become completely naturalized in tlie Bombay 

 Presidency, especially in the Deccan, where it is very abundant. 



38. CENTIPEDA, Lour. 



Annual or perennial herbs. Leaves alternate, often spathulate, entire 

 or coarsely toothed. Heads small, sessile on the branches or racemose, 

 heterogamous, disciform, yellow ; outer flowers $ , many-seriate, fertile; 

 disk-flowers ^ , few, fertile. Involucre hemispheric : bracts 2-seriate, 

 subeqnal and with searious margins, Eeceptacle flat or slightly convex, 

 naked. Corollas all regular, tubular ; tube very short ; limb in $ flowers 

 narrow, 2-3-lobed, in the g flowers broader, campaiuilate, 4-fid. 

 Anther-bases obtuse, entire. Style-arms of ^ flowers short, truncate. 

 Pappus 0. Achenes 4 -angled ; tip obtuse; angles hairy. — DisxiiiB. 

 Asia, Australia, and Tropical S. America; species 3. 



1. Centipeda orbicularis, Lour. Fl. Cocliincli. (1790) p. 493. A 

 small annual ; stems numerous, 4-8 in. long, spreading from the root, 

 prostrate, slender, leafy, usually glabrous. Lea\'es numerous, subsessile, 

 T~i '^y 8~T6 ^"-i oblong-spathulate, with few teeth (usually 2 on each 

 side), base tapering. Heads jV~i i"- ^"^ diam., globose, solitary, axillary, 

 subsessile. Invol.-bracts (in flower) small, oblong, obtuse, with mem- 

 branous margins. Pappus 0. Achenes minute, 4-angled, bristly on the 

 angles. Fl. B. L v. 3, p. 317 ; C. B, Clarke, Comp. Ind. p. 151 ; Trim. 

 Fl. Ceyl. V. 3, p. 42. 2Ii/ro(jyne minutUj Less, in DC. Prodr. v. 6, p. 139. 

 DichrocepJiala Schmidii, Wight, Icon. t. 1610. — Flowers : Dec.-Feb. 



S. M. CouNTitY : Londa, JJaojil Kanaka: Gonje, liUchie, 1184!; Kala naddi, 

 H'lfcluc, 1184 !— DisTitiB. Throughout India in moist places; Ceylon, Al'ghani.stan, 

 Malaya, China, Australia, and the Pacific Islands. 



89. ARTEMISIA, Linn. 



Herbs or shrubs usually strongly scented. Leaves alternate, entire, 

 incised or 1-3-pinnatisect. Heads small, solitary or fascicled, racemose 

 or panicled, never corymbose, heterogamous with the outer flowers $ , 

 fertile, 1 -seriate, or homogamous, the $ flowers wanting ; inner or disk- 

 flowers ^ , fertile or sterile. Involucre ovoid or broadly campanulate ; 

 bracts few-seriate with searious margins, the outer shorter, lieceptacle 

 flat, convex or hemispheric, naked or hirsute. Corollas of $ flowers 

 slender, tubular, shortly 2-3-fld at the apes; coi-ollas of g flowers 

 regular, tubular, the limb slightly enlarged or campanulate, o-fld. 

 Anther-bases obtuse, entire. Style-arms of ^ flowers truncate, usually 

 penicillate ; tips often connate in the sterile flowers. Pappus 0. 

 Achenes vei'y small, ellipsoid, oblong or subobovoid, faintly striate, 

 glabrous or pilose.' — Histiub. Chiefly in X. temperate regions, a few in 

 S. America; species about 150. 



Disk-flowers sterile. 



Lower leaves sessile, simple, cnncatc 1. A. parviflora. 



Lower leaves petioled, l-ii-pinnatisect 1'. A. gcoparia. 



Disk-flowers fertile. 



Outer iJivol. -bracts smaller than (he inner .3. A. vith/ai-is. 



Outer invol.-bracts larger than the inner 4. A. pftl/eiis. 



