Cynanchum ,] xcii. asclepiadaceas. 381 
(1) C. ovalifolium Wight, Contrib. 57; King, l.c. 533 - 
A slender herbaceous climber. Leaves membranous or slightly 
fleshy ovate to oblong-lanceolate, shortly acuminate, base round 
or narrowed; nerves 7 to 8 pairs; 3 to 4*5 in. long, i - 25 to 2 in. 
wide; petioles -5 to 75 in. long. Cymes racemose, 4- to 15 flowered, 
•5 in. long; peduncles *5 to 1 in. long, from between the petioles 
and subtended by little round leaves -25 in. wide. Calyx-lobes 
ovate blunt, much shorter than the corolla. Corolla *25 m. wide, 
yellowish green, tube very short; lobes oblong-blunt fleshy. 
Corona tubular, 5-lobed or cut down nearly to base. Stamens 
sub-coriaceous. Follicles smooth, green, ovoid-lanceolate, 4 in. 
long, 1*25 in. wide when dehisced. Seed orbicular, *3 in. long, 
•25 in. wide, plume 1-25 in. long. Hab. In hedges and woods. 
Not rare. Singapore, Cluny road, bamboo hedges; Bukit Timah. 
Johor, Gunong Pulai. Malacca, Bukit Bruang (Cantley). Negri 
Sembilan Tampin. Perak, Thaiping (Kunstler); Haram Parah 
(Scortechini). Province Wellesley, Ara Kudah. Penang, Telok 
Bahang (Curtis); Rifle Range. Penara Bukit 1000 ft. altitude. 
Lankawi (Curtis); Terutau, Telok Wan (Robinson). Setul. 
Tringganu, Bundi (Rostados). Distrib. Java. Native name: Akar 
Bano. 
This varies much in the form of the leaf as well as the depth to which 
the corona is cut down. A form with oblong-lanceolate leaves almost acute 
at base may be called var. angustifolia. It occurs in Penang and Terutau. 
(2) C. corymbosum Wight, Contrib. 56; King, l.c. 534. 
Slender twiner. Leaves thinly membranous, glaucous beneath, 
ovate cordate cuspidate, with a tuft of glands in the sinus; nerves 
6, radiating from the sinus; 2 to 6 in. long, 1 to 3 in. wide; petioles 
1 '5 to 3 in. long. Cymes corymbose, 2 or 3 in an axil, branched 
or simple. Flowers distant, not distinctly umbellate; pedicels 
*12 in. long; peduncles 1*5 in. long. Calyx-lobes ovate acute. 
Corolla campanulate, -3 in. wide, lobes oblong, rather long blunt. 
Buds conic, blunt. Corona as long as the corolla, irregularly 
crenately xo-lobed. Pollinia ellipsoid with short clavate caudicles. 
Follicles 1 or 2, reddish, lanceolate long-acuminate, thickly covered 
with soft hooked spines, 3 to 5 in. long, 1 to 1*5 in. wide. Seeds 
orbicular-ovoid *5 in. long and nearly as broad; plume 1*5 in. long 
Hab. Rare in forests. Perak, Larut; open jungle 300 to 500 ft. 
altitude (Kunstler). Penang (Wallich). Distrib. India. 
(3) C. Seimundii Ridl. Journ. R. As. Soc. S. Br. 86, p. 300. 
Herbaceous climber, glabrous except the inflorescence. Leaves 
thinly membranous, not glaucous beneath ovate acute, base cordate, 
upper leaves round, entire; nerves 6 pairs; 6 in. long, 5 in. wide; 
petioles 3 in. long; upper leaves smaller. Corymbs solitary 
axillary umbelliform; peduncles 1-5 in. long. Flowers about 20; 
pedicels *5 in. long, puberulous. Buds sub-globose. Calyx-lobes 
very short, rounded ovate. Corolla *23 in. across; tube very 
