86 
Flora of the Malayan Peninsula. 
Plumbago zeylanica, Linn. Sp. PI. (1753) 151. A straggling 
perennial herb; branches rounded, striate, glabrous. Leaves alternate, 
ovate, shortly acute at apex, rounded at base and suddenly narrowed 
and decurrent, 2 to 5 in. long, 1 to 2 - 5 in. broad, entire, thin, glabrous 
above, somewhat scurfy beneath and often glaucous ; midrib slender, 
prominent beneath, main-nerves 6 to 7 pairs, also prominent, curving 
upwards, secondary nerves and reticulations obscure ; petiole ’5 to 1 in. 
long, winged by the gradually narrowing decurrent base of the blade, 
auricled and amplexicaul at base. Inflorescence a terminal leafy panicle 
of spicate racemes, the raehis densely glandular ; bract ovate, acumi- 
nate, bracteoles 2, linear-subulate ; pedicels very short or none, bracts 
and pedicels glandular. Calyx narrowly tubular, about -5 in. long, 
more or less deeply 5-fid ; lobes slender, hyaline on the margins, 
covered thickly on the back with prominent stalked red glands. 
Coi o/fa-tube white, slender, funnel-shaped, membranous, about 1 in. 
long; lobes 5, nearly -5 in. long, ovate, acute, patent. Stamens 5, free; 
filaments very slender ; anthers oblong, dorsifixed, exsert. Ovary ovoid ; 
style filiform, dividing into 5 stigmatose branches. Capsule mem- 
bianous below, thick above, 5-furrowed, sharply pointed ; seed pendu- 
lous, oblong; cotyledons obtuse. DC. Prod. XII. 692; Eoxb. Hort. 
Beng. 13, PI. Ind, I. 462 ; Wall. Cat. 7241g ; Wight 111. t. 179 ; Miq. 
FI. Ind. Bat. II. 994 ; Dalz. and Gibs. Bomb. PI. 220 ; Kurz in Journ. 
As. Soc. Beng. XLVI. ii. 217 ; Clarke in Hook. f. PI. Br. Ind. III. 480 ; 
Trimen PI. Geyl. Ill, 65; Prain Beng. Plants I. 639. P. auriculata, 
Bl. Bijclr. 736. P. viscosa, Blanco PI. Filip, ed. I. 78. ‘ Tumba- 
codivdli,’ Bheede Hort. Mai. X. t. 8. 
Penang : Curtis 93 ; Deschamps. Negri Sembilan : Ridley 10095. 
Singapore : Deschamps ; King’s Collector 284.— Distrib. Tropical 
regions of the Old World, doubtfully indigenous in the Malay Penin- 
sula or elsewhere. 
Order LXXVIII. GENTIANACE2E. 
[By C. B. Clarke.] 
Herbs, erect, twining, or floating ; glabrous except Microrphium. 
Leaves entire ; those of the lower main stem opposite except in the 
floating plants. Inflorescence in 2- to 3-divided cymes, or peduncles 
1-flowered. Flowers symmetric in calyx, corolla, stamens (except in 
Canscora). Calyx tubular or campanulate ; lobes 4 to 5 (or by accident 
(?) 6), oblong or linear. Corolla gamopetalous, tube long or short; 
lobes as many as calyx-segments, usually dextrorsely contorted in the 
bud. Stavions as many as the corolla-segments, all perfect (except in 
