308 
Flora of the Malayan Peninsula. 
opening by valves ; the epicarp eircumscissile above the middle, the 
cap in separating carrying away the style ; the endocarp at first entire, 
at length rupturing irregularly. Seeds usually solitary, rarely more 
than one, black, smooth or furred, usually large. — Distrib. Species 
15, tropics generally. 
Stems winged ; bracts large, coloured ; flowers white or pale yellow ; 
leaves softly pubescent, not palmate . . . . . . 1. 0. Turpethum. 
Stems not winged ; bracts small : flowers brilliant yellow ; leaves 
glabrous, deeply palmately lobed .. .. ..2. O.tuberosa. 
1. Operculina Turpethum, Manso En. PI. Bras. 16, n. 49. A 
stout softly pubescent climber, with strong twining 4-angled or com- 
pressed less often sub-cylindric winged stems, wings membranous. 
Leaves large, ovate or oblong, obtuse or acute, 2 to 5 in. long, 1 to 3 in. 
wide, base cordate or truncate ; petiole 1 in. long. Floivers axillary, in 
few-flowered cymes ; peduncles 1 to 4 in. long ; bracts oblong, 1 in. long, 
sometimes pinkish-purple, caducous. Sepals 5, ovate, softly pubescent, 
•5 in. long; in fruit accrescent orbicular, concave, scarious and fissile, 
1 in. long. Corolla white or pale yellow, tubular-campanulate, l - 5 in. 
long. Stamens 5, included, anthers at length contorted. Capsule globose, 
■5 to -75 in. across. Seeds 4 or fewer, glabrous. Hallier f. Engl. Bot. 
Jahrb. XVIII. 120, and Verslag. Buitenzorg, 1895, 128. Convolvulus 
Turpethum, Linn. Sp. PI. 155 ; Eoxb. Hort. Beng. 14, Elor. Ind. ed. 
Carey & Wall. II. 57, and Elor. Ind. I. 476 ; Wall. Cat. 1371 ; Bot. 
Mag. t. 2093 ; Hassk. PL Jav. Ear. 518. C. anceps, Linn. Mantiss. 43. 
C. triqueter, Vahl Symb. III. 30. Ipomcea Turpethum, E. Br. Prod. 
I. 485 ; Bot. Eeg. t. 279 ; Chois. Convolv. Or. 68, and in DC. Prod. 
IX. 360 ; Kurz Bor. Flor. Burm. II. 218 ; Clarke in Hook. f. Elor. Brit. 
Ind. IV. 212. J. anceps, Eoem. & Schult. Syst. IV. 231 ; Bl. Bijdr. 714 ; 
Choisy Convolv. Or. 68, and in DC. Prod. IX. 360. I. triquetra, Eoem. & 
Schult. Syst. IV. 231. Spiranthera Turpethum, Boj. Hort. Maurit. 226. 
Argyreia alulata, Miq. Elor. Ind. Bat. II. 587. 
Andamans: Narcondam, Prain ! Nicobars: Kamorta, Kurz! 
Malacca : Griffith ! — Distrib. E. Africa, S.E. Asia, Australia, 
Polynesia. 
2. Operculina tubeeosa, Meissn. in Mart. El. Bras. VII. 212. A 
stout glabrous climber with strong twining smooth or muricate stems. 
Leaves large, ovate, deeply palmately lobed ; lobes elliptic-lanceolate, 
acuminate, entire, 3 to 5 in. across ; petiole 2 to 5 in. long. Flowers 
axillary in many-flowered cymes ; peduncles 2 to 6 in. long ; bracts 
deciduous ; pedicels -25 to 1 in. long. Sepals 5, elliptic-oblong, obtuse ; 
accrescent in fruit and spreading, ultimately 2 in. long, 1 to 1'5 in. wide. 
Corolla yellow, tubular-campanulate, 2 in. long. Stamens 5, included, 
