Didyniocarpus.] cm. gesnerace^e. 513 
Capsule pubescent. Hab. Pahang, Gunong Berumbun, Telorn at 
6000 ft. altitude (Ridley). 
Near D. albina, but smaller in all parts, inflorescence little branched and 
colour different. 
(19) D. Robinsonii Ridl. Journ. Linn. Soc. xxxviii. 318. 
Shrubby plant over 1 ft. tall, hairy, branched. Leaves paired, 
sub-equal lanceolate acuminate at both ends, crenulate hispid, sub- 
glabrous beneath, 2 in. long, *75 in. wide; petioles hairy, -25 in. 
long. Flowers in upper axils; peduncles 2 in. long. Sepals lanceo¬ 
late-linear, 4, glandular hairy. Corolla infundibuliform pubescent, 
white streaked violet, yellow blotched in tube, lower lobe longer 
than upper, 1 in. long, -3 in. across. Hab. Mountains at 3000 ft. 
altitude, Pahang, Gunong Tahan in the Gully (Robinson and 
Ridley). 
(20) D. modesta Ridl. Journ. F.M.S. Mus. vi, 53. 
Stem slender unbranched, 6 to 8 in. long, appressed hairy. 
Leaves in distant pairs equal lanceolate acuminate both ends, 
entire thin glabrous except nerves, 4 pairs beneath and edges hairy, 
2 to 3 in. long, -5 to 1 in. wide; petioles *25 to *4 in. long, slender 
hairy. Flowers solitary axillary in upper axils; peduncles *5 to 
3 in. long, hairy. Sepals narrow setaceous, purple-hairy. Corolla 
white or yellow, narrow at base gradually dilate upwards, sparsely 
hairy, lobes oblong, *4 to 'i in. long, limb *25 in. wide. Capsule 
straight, 1*1 in. long, glabrous. Hab. Perak, Gunong Kerbau at 
3000 to 5000 ft. altitude (Robinson). A smaller form with sparsely 
hairy leaves rather broader and very short peduncles, *24 in. long, 
occurred with it at 3500 ft. altitude. 
(21) D. alternans Ridl. Journ. Roy. As. Soc. S. Br. 44, p. 37; 
Journ. As. Soc. Beng., lx. 751. 
About 1 ft. tall, scabrid hairy. Leaves thin, sub-alternate 
and opposite, lanceolate acuminate, base irisequilateral cuneate, 
entire or slightly serrate, 3 in, long, 1*25 in. wide, nearly glabrous, 
only midrib and petioles *25 in. long, scabrid hairy; opposite leaf 
a small ovate blade *5 in. long or absent. Flowers solitary, on 
axillary peduncles '25 in. long or less. Sepals lanceolate acute, 
hairy. Corolla *5 in. long, white, throat yellow; tube narrowed 
at base, dilate upwards, pubescent; lips sub-equal. Capsule 
glabrous, 1 in. long. Hab. Mountains up to 4000 ft. altitude. 
Perak, Bujong Malacca (Curtis); Thaiping Hills (Kunstler). 
(22) D. glabrata Ridl. Journ. Roy. As. Soc. S. Br. 44, p. 38 
Journ. As. Soc. Beng., l.c. 751. 
Slender branched herb over 1 ft. tall, almost glabrous, slightly 
pubescent on stem and petioles. Leaves opposite, sub-equal 
elliptic or ovate, sub-acute, base cuneate or round oblique, entire, 
1*5 to 3 in. long, 1 in. wide; petioles slender pubescent, '25 in. 
long or less. Peduncles 2-flowered, 2 in. long, pubescent. Sepals 
