Centipeda.] Lxxviii. composite!. (J. D. Hooker.) 317 



axillary and terminal, fl. $ -with a flattened 3-4-toothed corolla lobed at the 

 base, achenes of the ray hardly winged. Clarke Comp. Ind. 150. Matricaria 

 aurea, Boiai. Fl. Orient, iii. 324. Anacyclus aureus, Lamk. III. t. 700. 



The PnNJAB ; Peshawar, Stewart. — Distrib. Persia, Syria, Malta, Algeria, Spain. 



Hahit of a Cotala 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 ^-i in. diam., subhemispheric ; invol. bracts broadly oblong. Corolla lobed at 

 the base, walls very thick below, mouth shortly 4-lobed. Aohenes oblong, flattened, 

 striated ; pericarp mucose when moistened ; pappus in Indian species (a large auricle 

 in European). 



69. CENTIPEDA, lour. 



Annual or perennial herbs. Leaves alternate, entire or toothed. Heads 

 small, sessile on the branches or racemose, heterogamous, disciform, yellow ; 

 outer fl. S> , 00 -seriate, fertile, coruUa minute obscurely lobed ; disk-fl. g , few, 

 fertile, tube short, limb campanulate 4-fid. Involua-e hemispheric ; bracts 2- 

 seriate, spreading in fruit ; receptacle naked. Anther-hoses obtuse, entire. Styles 

 artns of § short, truncate. Achenes 4-angled, tip obtuse, angles hairy, hairs 

 sometimes hooked ; pappus 0. — Uisibib. Species 3, Asiatic, Australian, and 1 

 tropical South American. 



1. C. orbicularis, Lour. Fl. Coch. ; annual, prostrate, glabrous or 

 sparsely woolly, leaves obovate-oblong, heads globose solitary axillary subsessile, 

 corolla of 5 fl. a very minute cylindric tube, hairs of achenes simple. C. minuta, 

 Benth. in Gen. PI. ii. 230; Clarke Comp. Ind. 151. Myriogyne minuta. Less.; 

 DC. Prodr. vi. 139. Ootula sternutatoria. Wall. Cat. 3^59. 0. minima, Willd. 

 Sp. PL iii. 2170. Dichrocephala Schmidii, Wight Ic. t. 1610. Artemisia ster- 

 nutatoria, Roxh. Fl. Ind. iii. 423. A. minima, Linn. Sphseromorphsea centi- 

 peda, DC. Prodr. vi. 140.— JJarm. Fl. Ind. t. 58, f. 3. 



Throughout the plains of India and Ceylon in moist places. — ^Distbib. Affghanis- 

 tan, Eastern tropical Asia, Austrnlia, and the Pacific Islands. 



Stems excessively numerous, spreading from the root, 4-8 in. long, slender, leafy. 

 Leaiies J-J in. long ; teeth few. Heads ^-J in. diam. — I see no reason for doubting 

 that Lessing'a Myriogyne minuta and I>e CandoUe's Sphceromorphtea centipeda should 

 be referred to Loureiro's Centipeda orbicidaris. The genus should be placed next to 

 Dichrocephala. 



70. SPXaSROnXORPHJEA, DC. 



A small perennial, pubescent with crisped hairs, vnth woody root and 

 prostrate rather woody branches. Leaves alternate, sessile, obovate. Heads 

 axillary, subsolitary, shortly peduncled, heterogamous, disciform, yellow ; outer 

 fl. 5 , multiseiiate, fertile, corolla elongate slender tubular inflated below ; disk 

 fl. g , fewer, fertUe, tubular, 4-cleft. Involucre hemispheric ; bracts many-seriate, 

 oblong, obtuse, coriaceous, incurved in fruit ; receptacle naked. Anther-hasea 

 obtuse, entire. Style-arms of g and § 2-fld. Achenes subcylindric, slender, 

 broadly ribbed, hairy at the base only ; pappus 0. 



1. S. Russellana, DC. Prodr. vi. 140; Deless. Ic. Sel. iv. t. 49. Centi- 

 peda orbicularis, Clarke Comp. Ind. Ifil ; Kurz in Jowm. As. Soc. 1877, ii. 179, 

 not of Loureiro. Ootula Russeliana, Wall. Cat. 8240. 



Westkbn Peninsula ; the Circars, Rttasel. — Distrib. Siam. 



Boot stout, woody, 6-10 in. long. Stem much branched from the woody stock ; 

 branches straggling, 6-8 in. long, flesuous, woody below. Leaves \~\ io., contracted 

 into a petiole, obtuse, irregularly toothed. Heads globose, ^\ in. diam. ; invol, bracts 

 very coriaceous, obscurely pube&cent. — This is a very rare plant ; I have seen no speci- 



