Didymocarpus.] chi. gesnerace,®. 521 
densely rough hairy all over, 6 in. long, 1*5 in. wide; petioles 
distinct, *5 in. long. Peduncles in upper and lower axils slender, 
hairy. Sepals ovate-lanceolate blunt. Corolla-tube narrow, funnel- 
shaped above, pubescent yellow. Capsule very narrow pubescent, 
3 in. long. Hab. Perak, Goping and Thaiping Hills (Kunstler). 
This is very distinct in this group from having the stem drawn out with 
alternate leaves. 
(46) D. serratifolia Ridl. Journ. As. Soc. Beng. lxxiv. (2), 
761. D. serrata Ridl. Journ. Roy. /Is. Soc. S. By. 44, p. 52 ( not 
of R. By.). 
Stem woody, 6 in. long or less, hairy above. Leaves numerous 
lanceolate acute, base narrowed, winged to base or nearly so, 
strongly, sharply toothed, glabrous above, midrib densely hairy 
beneath; nerves 40 pairs; 8 in. long, 1 in. wide. Scape slender, 
hairy, 3 in. long. Flowers 4 to 5, sub-sessile. Sepals ovate hairy. 
Corolla trumpet-shaped, 75 in. long, base narrowed, lower lip 
longer than upper; limb -25 in. across, midlobe longer than the 
others, white stained purple, outer throat yellow. Capsule very 
slender, pubescent, over 1 in. long. Hab. On rocks by a stream; 
dense jungle. Rare. Perak, Thaiping Hills at about 1500 ft. 
altitude (Ridley). 
(47) D. pectinata Clarke and Oliver, Ic. PL t. 2246; Ridl. 
Journ. As. Soc. Beng., l.c. 762. 
Stem 6 in. tall, shrubby branched. Leaves densely crowded at 
top, glabrous, deeply pectinate, 6 to 7 in. long, lobes cut to near the 
midrib, triangular blunt, *4 in. long, *125 in. wide at base. Peduncles 
several, pubescent, 2 in. long. Sepals lanceolate-acute. Corolla 
cylindric slightly inflated upwards, white tomentose, -3 in. long. 
Capsule *5 to 75 in. long, rather thick. Hab. Forests, rare. Selan¬ 
gor, Rawang (Ridley). Perak, on limestone rocks (Kunstler). 
(48) D. densifolia Ridl. Journ. Roy. As. Soc. S. Br. 44, p. 51 ; 
Journ. As. Soc. Beng., l.c. 760. 
Stem woody, 3 ft. tall. Leaves crowded alternate lanceolate 
acuminate narrowed to base, rather thick, glabrous except a few 
hairs on midrib, entire, 1-5 to 5 in. long, *25 to 75 in. wide. 
Peduncles hairy, slender, 3 in. long with a few branches. Sepals 
linear-oblong pubescent. Capsule cylindric, 1 in. long. Hab. 
Very rare, mountains, Johor, Gunong Janeng (Kelsall). 
As I was unable to get corollas, this plant is doubtful and may be a 
Parabcea. 
(49) D. longipes Clarke, DC. Mon. Phan. v. (1), p. 86; Ridl. 
Journ. Hs. Soc. Beng., l.c. 756. 
Stem woody, 2 in. long, top hairy. Leaves crowded at the 
top, 4 or 5, oblanceolate gradually narrowed to the base, obscurely 
serrate, rather fleshy glabrous except the sparsely hairy midrib 
beneath, bright green above, purple beneath, 8 in. long, 2-25 in. 
