46 
Flora of the Malayan Peninsula. 
Heads -4 to -6 in. in diam., on slender erect solitary peduncles 3 to 8 in. 
long. Cypselas brown ; pappus shining, white. DC. Prod. Y. 679 ; 
Wall. Cat. 3197; Clarke Comp. Ind. 142; Hook. fil. PI. Br. Ind. III. 
311 ; Prain Bengal Plants, 618. 
In cultivated and waste places : an introduction. 
21. Centipeda, Lour. 
Annual or perennial herbs. Leaves alternate, entire or toothed. 
Heads small, axillary, sessile or racemose, heterogamous, disciform, 
yellow. Outer florets 2 , in many rows, fertile, their corollas minute, 
obscurely lobed. Disk-florets i , few, fertile, their corollas with short 
tube and campanulate 4-fid limb. Involucre hemispheric, its bracts in 
2 series, spreading in fruit ; receptacle naked. Anthers obtuse and 
entire at the base. Style-arms of $ flower short, truncate. Cypselas 
4-angled, the apices obtuse, the angles hairy ; the hairs sometimes 
hooked; pappus none. — Distkib. 43 species, Asiatic, Australian, and 
South American. 
Centipeda obbiculabis, Lour. PI. Cochinch. III. 493. An annual 
prostrate herb with numerous thin rooting stems, glabrous or sparsely 
tomentose. Leaves obovate-oblong or cuneate, - 2 to - 5 in. long, sparsely 
toothed. Heads • 1 to - 15 in. in diam., globose, solitary, axillary, sub- 
sessile. Florets, 2 minute, numerous, tubular, minutely 3-toothed ; 
£ 10 to 12, 4-toothed. Cypselas with simple hairs. Hook. fil. FI. 
Br. Ind. III. 317 ; Prain Bengal Plants, 620. C. minuta, Benth. in 
Bth. & Hook. fil. Gen. PI. II. 230 ; Clarke Comp. Ind. 151. Myriogyne 
minuta, Less. ; DC. Prod. YI. 139. Cotula sternutatoria, Wall. Cat. 
3259. C. minima, Willd. Sp. PI. III. 2170. Dichrocephala Schmidii, 
Wight Ic. 1610. Artemisia sternutatoria, Eoxb. PI. Ind. III. 423. 
A. minima, Linn. Sp. PI. 849. Sphceromorphcea centipeda, DC. 
l.c. 140. 
In all the provinces : by the sides of roads in cultivated ground, 
not common. 
22. Aktemisia, Linn. 
Herbs or shrubs, usually fragrant. Leaves alternate, 1- to 3-pinna- 
tisect, serrate or entire. Heads small, numerous, racemose or panieled, 
solitary or in fascicles (never corymbose), heterogamous or homogamous, 
disciform. Outer florets 2, in a single series, fertile, very slender, 
2- to 3-toothed. Disk-florets § , fertile or sterile, the limb 5-fid. Invo- 
lucre ovoid, sub-globose or hemispheric ; bracts in few series, the outer 
shorter, their margins scarious ; receptacle flat or convex, naked or 
hairy. Anthers with entire obtuse bases. Style-arms of the £ florets 
with truncate, usually penicillate, tips. Cypselas very minute, oblong, 
