30 Flora of the Malayan Peninsula. 



In all the provinces, in cultivated places. — Disteib. The tropics 

 generally. 



5. MiKANiA, Willd. 



A twining herb (in Indo-Malaya). Leaves opposite, petiolate. Heads 

 small, in spikes racemes or panicles, homogamous, usually 4-flowered. 

 Involucre oblong, its bracts 4, narrov,^, sometimes with a small outer 

 one ; receptacle small, naked. Corollas all equal, regular, tubular, the 

 tube narrow ; the limb campanulate, 5-fid. Anthers appendiculate, the 

 base obtuse. Style-arms long, acute. GyjJselas with truncate apices, 

 .5-angled ; pappus with one or more rows of scabrid hairs, often con- 

 nate at the base. — Disteib. About 60 species, all in the warm parts of 

 America and Africa except the following. 



MiKANiA scANDENS, Willd. Sp. PI. 1743. A glabrous or puberulous 

 climber ; young branches less than half as thick as a goose-quill, brown 

 and striate when dry. Leaves membranous, on long petioles, ovate, 

 acuminate ; the base broad, cordate, often almost sagittate, the edges 

 sinuate ; main-nerves a single pair, ascending from the base and 

 branching outwards ; length 1 to 2 in. ; breadth -6 to 1'25 in. ; petioles 

 •5 to 1 in., slender. Heads narrow, 4-flowered, in lax corymbose cymes, 

 on slender peduncles much longer than the leaves, peduncles and 

 branches angled when dry, puberulous. Scales of involucre chaffy, 

 narrowly oblong, obtuse. Cypselas glabrous ; pappus reddish. DC. 

 Prod. V. 199; Clarke Comp. Ind. 34; Hook. fil. PL Br. Ind. III. 

 244 ; Prain Bengal Plants, 592. M. voluhilis and M. chenopodifolia, 

 Willd. I.e. 1745 ; DC. I.e. 199 and 201. Eupatorium scandens, Linn. ; 

 Jacq. Ic. t. 169. 



In all the provinces, common. — Disteib. British India, Malay 

 Archipelago, Tropical Africa. 



6. DiCHROCEPHALA, DC. 



Annuals, with alternate toothed lyrate or pinnatifid leaves. Heads 

 small, heterogamous, globose or hemispheric, not rayed, in panicles ; 

 Outer florets $ , in many rows, slender, fertile, rigid, 2-3 -toothed or 

 cleft. Disk-florets ^ , fertile, narrow, 4- or 5-toothed. Anthers with 

 truncate bases. Style-arms of ^ florets short, flattened, the tips 

 lanceolate ; pappus none or (in the ^ ) of 2 minute bristles. — Disteib. 

 Species 5, Asiatic and African. 



DiCHEOCEPHALA LATiFOLiA, DC. in Guill. Archiv. Bot. 11. 518. An 



annual weed, 12 to 24 in. high, erect or spreading, glabrous pubescent 



or villous. Leaves very variable, ovate lanceolate or obovate, entire 



pinnatifid or lyrate, with the terminal lobe broadly ovate and coarsely 



240 



