Flora of the Malayan Peninsula. 115 



Miq. Fl. Ind. Bat. II. (1856) 121; Koord. & Val. Boomsoort. Java in 



Mededeel. 'sLands Plant. XXXIII. (1900) 43. 



Perak : Wray 1496, at 4900 feet on Ulu Batang Padang. Distrib, 



Sumatra ; Java. 



Nat. Old. LIX. RDBIACE^. 



Trees, shrubs or herbs, erect, climbing, twining or prostrate, un- 

 armed or spinous. Leaves simple, opposite, usually quite entire ; 

 stipules inter- or intra-petiolar, free or united to each, other or to the 

 petiole ; in the tribe Galiese leaf -like and forming a whorl with the 

 leaves. Inflorescence various. Flowers usually hermaphrodite, mostly 

 regular and symmetrical. Calyx-iuhe adnata to the ovary : its limb 

 various, sometimes pefcaloid. Corolla gamopetalous, regular, usually 

 4-5-lobed, rarely bilabiate ; the lobes of the limb valvate, imbricate or 

 contorted. Stamens equal in number to the lobes of the corolla, sessile 

 or on short or long filaments ; anthers 2-celled, usually linear, dorsifixed, 

 and dehiscing longitudinally, rarely with poi-ous dehiscence. Disk 

 epigynous, usually annular or cushion-shaped, sometimes lobed, or 

 reduced to glands. Ovary inferior, 1-10-celled ; style simple or cleft 

 (but rarely cleft to the base) ; stigmas various, usually on the style- 

 arms, but sometimes connate and fusiform, oblong, capitate or mitriform 

 and simple or lobed. Ovules in the ovarian cells solitary or in pairs, 

 or numerous. Fruit capsular, baccate, drupe-like, 2-10-celled, or 

 dehiscing into 2 or more dehiscent or indehiscent cocci. Seeds various, 

 with horny albumen ; embryo straight or curved ; cotyledons flat or 

 semi-terete ; radicle superior or inferior. — Distrib. About 4,800 species, 

 chiefly tropical and sub-tropical. 



Ovules numerous in each cell of the ovary : — 



Fruit dry, capsular or separating into 2 or 4 cocci: — 

 Flowers oHected into dense globular heads : corolla 

 fannel-shaped, its lobes valvate or imbricate in bad : 

 • stigma simple : — 



Lobes of the corolla valvate 

 Lobes of the corolla imbricate : — 

 Tubes of the calyces concrete 

 Tubes of the calyces free : — 



Seeds not winged ... >,, . 



Seeds winged : — 

 Trees : — 



Capitules solitary or few 

 Capitules numerous, small 

 Climbers : — 



Capitules usually solitary, ."xxillary, oi.i 

 peduncles curving into hooks when in 

 fruit ... ... ... ... 6. Uncaria. 



