Centipeda. } LXXVII. cowPOSITE. (J. D. Hooker.) 317 
axillary and terminal, fl. 9 with a flattened 3-4-toothed corolla lobed at the 
base, achenes of the ray hardly winged. Clarke Comp. Ind. 150. Matricaria 
aurea, Boiss. FI. Orient. iii. 324. Anacyclus aureus, Lamk. IUl. t. 700. 
The Ponsas; Peshawar, Stewart.—Distris. Persia, Syria, Malta, Algeria, Spain, 
Habit of a Cotula rather than of Matricaria, and the achenes are decidedly flat- 
tened. Stems 2-4 in., decumbent from the root. Leaves 1—3 in., segments very slender. 
Heads A A in. diam., subhemispherie; invol. bracts broadly oblong. Corolla lobed at 
the base, walls very thick below, mouth shortly 4-lobed. Achenes oblong, flattened, 
striated ; pericarp mucose when moistened ; pappus 0 in Indian species (a large auricle 
in European). 
69. CENTIPEDA, Lou. 
Annual or perennial herbs. eaves alternate, entire or toothed. Heads 
small, sessile on the branches or racemose, heterogamous, disciform, yellow ; 
outer fl. 9 , oo -seriate, fertile, corolla minute obscurely lobed; disk-fl. 3, few, 
fertile, tube short, limb campanulate 4-fid. Involucre hemispheric; bracts 2- 
seriate, spreading in fruit; receptacle naked. Anther-bases obtuse, entire. Style- 
arms of § short, truncate. Achenes 4-angled, tip obtuse, angles hairy, hairs 
sometimes hooked ; pappus 0.— DrsrRis. Species 3, Asiatic, Australian, and 1 
tropical South American. 
1. C. orbicularis, Lour. Fi. Coch.; annual, prostrate, glabrous or 
sparsely woolly, leaves obovate-oblong, heads globose solitary axillary subsessile, 
corolla of 9 fl. a very minute cylindric tube, hairs of achenes simple. C. minuta, 
Benth, in Gen. Pl. ii. 230; Clarke Comp. Ind. 151. Myriogyne minuta, Less. ; 
DC. Prodr. vi. 139. Cotula sternutatoria, Wall. Cat. 3259. O. minima, Willd. 
Sp. Pl. ii. 2170. Dichrocephala Schmidii, Wight Ic. t. 1610. Artemisia ster- 
nutatoria, Roxb. Fl. Ind. iti. 423. A. minima, Linn. Spheeromorphea centi- 
peda, DC. Prodr. vi. 140.— Burm. Fl. Ind. t. 58, f. 3. 
Throughout the plains of Innia and Czvrow in moist places.—Distrin. Affzhanis- 
tan, Eastern tropical Asia, Australia, and the Pacific Islands. 
Stems excessively numerous, spreading from the root, 4-8 in. long, slender, leafy. 
Leaves $-} in. long; teeth few. Heads j;-4 in. diam.—I see no reason for doubting 
that Lessing’s Myriogyne minuta and De Candolle's Spheromorphea centipeda should 
be referred to Loureiro's Centipeda orbicularis. The genus should be placed next to 
Dichrocephala. 
70. SPHEROMORPHEA, DC. 
A small perennial, pubescent with crisped hairs, with woody root and 
prostrate rather woody branches. Leaves alternate, sessile, obovate. Heads 
axillary, subsolitary, shortly peduncled, heterogamous, disciform, yellow; outer 
fl. Q, multiseriate, fertile, corolla elongate slender tubular inflated below ; disk 
fl. & , fewer, fertile, tubular, 4-cleft. Znvolucre hemispheric ; bracts many-seriate, 
oblong, obtuse, coriaceous, incurved in fruit; receptacle naked. Anther-hases 
obtuse, entire. Style-arms of Y and 9 2-fid. Achenes subcylindrie, slender, 
broadly ribbed, hairy at the base only; pappus 0. 
1. S. Russeliana, DC. Prodr. vi. 140; Deless. Ic. Sel. iv. t.49. Centi- 
peda orbicularis, Clarke Comp. Ind. 151; Kurz in Journ. As, Soc. 1877, ii. 179, 
not of Loureiro. Cotula Russeliana, Wall. Cat. 3240. à 
Western PENINSULA; the Circars, Russel.—Distrip. Siam. 
Root stout, woody, 6-10 in. long. Stem much branched from the woody stock; 
branches straggling, 6-8 in. long, flexuous, woody below. Leaves 4-1 ivn., contracted 
into a petiole, obtuse, irregularly toothed. Heads globose, 1-1 in. diam. ; invol, bracts 
very coriaceous, obscurely pubescent.—This is a very rare plant; I have seen no speci- 
