Flora of the Malayan Peninsula. 407 



We are unable to separate C. Maingayi from C. costatus. Teysmann's specimen of 

 the latter in the Kew Herbarium has only immature flower-buds, rather smaller than 

 the buds of G. Maingayi, but some of our specimens have them in quite as immature 

 a stage. Curtis says it gives a very white rubber. 



3. Leuconotis, Jack. 



Erect or climbing shrubs. Leaves opposite, distantly penninerved. 

 Floioers in pedunculate axillary cymes, 4-merous. Calyx d-lobed or 

 -partite, thickened at the base, eglandular or minutely glandular within. 

 Corolla hypocrateriform ; tube slightly dilated in the middle opposite 

 the stamens, throat naked ; lobes 4, short, overlapping to the left. 

 Stamens 4, included in the tube ; anthers linear-lanceolate, the cells 

 rounded at the base. Dish none. Ovary 2-celled ; style short ; stigma 

 thickened, with a very short bifid apiculus ; ovules 2 to 3 in each cell, 

 axile, laterally affixed. Fruit an ovoid or globose berry, pulpy within. 

 Seeds 1 to 6, ovoid-oblong ; testa membranous ; albumen none ; coty- 

 ledons thick fleshy, the inner surfaces irregular ; radicle short. — 

 DiSTEiB. Malay Peninsula and Archipelago ; about 6 species. 



Calyx 4-partite, lobes long linear ; intramarginal nerve of leaves 

 very prominent ; ovules 3 in each cell ; seeds up to 6 .. 1. L. eugenifollus. 



Calyx 4-lobed, lobes short rounded ; intramarginal nerve ob- 

 scure ; ovules 2 in each cell ; seeds usually 2 : — 



Corolla-tube "25 in. long ; peduncles very stout ; calyx and 



bracteoles very thick fleshy ; berry obovoid . . . . 2. L. Maingayi. 



Corolla-tube '3 to '4 in. long ; peduncles rather thick ; calyx 



and bracteoles moderately large and thick ; berry ellipsoid . . o. L. Grijithii. 



1. Leuconotis eugbnifolius, A. DC. Prodr. VIII. 331 (1844). 

 A small erect or climbing shrub ; branchlets thinner than a goose-quill, 

 dark-rusty-puberulous at first, afterwards glabrous, obscurely angled. 

 Leaves chartaceous ; elliptic-oblong, sometimes oblanceolate, abruptly 

 and often obliquely obtuse-caudate-acuminate at apex, rounded at base 

 or sometimes slightly cuneate ; upper surface dull olivaceous-brown, 

 lower surface pale yellowish-brown, minutely punctate and rusty- 

 puberulous on the nerves ; 2-5 to 4-5 in. long, 1 to 2 in. broad ; main 

 nerves 8 to 10 pairs, very prominent on the lower surface, at right 

 angles to the midrib, straight to join in a conspicuous intramarginal 

 nerve at nearly -1 in from the edge, the said nerve joining the midrib 

 below the acumen ; secondary nerves usually 1 or 2 between the main 

 nerves, reticulations obscure ; petiole slender, -3 to "5 in. long, rusty- 

 pubescent. Cymes 1 to 1-5 in. long, erect, rusty-pubescent, usually 

 about 6- to 12-flowered ; peduncle '5 in. long ; branches 3, the side ones 

 few-flowered, the mid one usually again branched ; pedicels about -2 to 



