XCII. ASCLEPIADACE^E. 
397 
Hoy a.] 
(7) H. citrina Ridl. Journ. Roy. As. Soc. S. Br. 86, p. 300. 
Stems stout, very long. Leaves thick fleshy drying stiffly 
coriaceous, ovate acute, base broad, round cordate; nerves 3, 
conspicuous when dry with about 4 pairs of nervules from the 
central one broken up into large lax reticulations, 4 to 4-5 in. long, 
3 in. wide; petioles stout, 75 in. long. Peduncles stout, 2-24 in. 
long, raceme thickened lengthening to over x in.; pedicels *6 in. 
long, slender. Calyx-lobes ovate blunt. Corolla *3 in. wide, 
lobes triangular-ovate acute not cordate, light yellow. Corona 
as in H. parasitica, but pinkish red, lower lobe long lanceolate 
acute. Hab. Limestone precipices. Selangor, Batu Caves. Perak, 
Ulu Bubong on a tree in jungle (Kunstler); Batu Kurau (Scor- 
techini). 
(8) H. coriacea Bl. Bijdr. 1063; Rumphia, iv. t. 187; King, 
l.c. 573 ; Bot. Mag. t. 4518. 
Leaves thinner than most species, ovate-lanceolate acute, base 
round; nerves 4 to 6 pairs with reticulations prominent; 6 in. 
long, 2-5 in. wide; petioles 75 in. long. Peduncles 2 to 5 in. long, 
rachis thick lengthening to 75 in. long. Flowers numerous, creamy 
white or creamy yellow, 75 in. across. Corolla-lobes triangular ovate, 
velvety acute. Corona-lobes white edged purplish, ovoid inflated 
acute. Follicle 4-5 to 5 in. long, *5 to 75 in. wide, lanceolate 
woody. Seed obianceolate, *25 in. long. Hab. Not common. 
Lowlands near the sea, also mountains to 3000 ft. altitude. Singa¬ 
pore, Tampinis (D’Almeida). Pahang, Pekan; Rumpin River 
(Evans). Malacca (Maingay). Selangor, Semangkok Pass 
(Machado). Perak (Scortechini). Disirib. Java, Borneo. 
(9) H. Forbesii King and Gamble, l.c. 574. 
Branches thick, slightly angled. Leaves coriaceous, elliptic- 
oblong or obovate acuminate blunt, base narrowed rounded, stout, 
midrib and nerves 7 pairs elevate when dry, 4 to 7 in. long, 2-5 to 
4 in. wide; petioles thick. Peduncle 75 in. long, rachis short; 
pedicels *5 in. long. Flowers -4 in. across, greyish white. Corolla 
purple-tipped, lobes triangular acute incurved, puberulous outside. 
Corona lower lobes narrow-oblong. Hab. Perak (Scortechini). 
Rare. Distrib. Sumatra. 
(10) H. Finlaysonii Wight, Contrib. 38; King, l.c. 574. 
Stem fairly stout. Leaves coriaceous, ovate or oblong lanceo¬ 
late, blunt acuminate, base rounded or narrow blunt, greenish 
red above, dark red beneath; nerves 5 to 7 pairs joining an intra¬ 
marginal, elevate as are reticulations when dry; 5 to 7 in. long, 
1-5 to 2-5 in. wide; petioles thick, -25 to -5 in. long, a gland just 
above it. Peduncles 175 in. long, rachis very short; pedicels 
75 in. long. Flowers numerous, cream-colour and pink, and 
corona white; *4 in. across. Corolla pubescent inside, lobes 
triangular-ovate acute. Corona-lobes ovate acute. Follicle 1, 
very slender, 7-5 in. long, -25 in. wide. Seeds cylindric, -3 in. long, 
