XCII. ASCLEPIADACEAL 
395 
Hoy a.] 
Leaves lanceolate; flowers very small. . . (22) H. parviflora 
Leaves ovate or lanceolate; flowers rather small, 
edge of leaf thickened . . . . (23) H. revoluta 
Leaves ovate lanceolate, edge not thickened ; 
flowers -4 in. across . . . (24) H. plicata 
Leaves large ovate, stem back of leaves and petioles 
densely red woolly .... (25) H. rufo-lanata 
(1) H. caudata Hook. fil. F.B.I. iv. 60; King, Lc. 568. 
Long climbing epiphyte. Leaves fleshy coriaceous, ovate 
acuminate, base rounded or cordate, edges strongly undulate, 
recurved, 3 to 7 in. long, 2 to 3 in. wide; petioles very thick, *25 in. 
long. Peduncles 1 in. long, stout, rachis thick, - 5 to 1 in. long; 
pedicels filiform, *5 in. long, all glabrous. Calyx-lobes linear 
lanceolate glabrous. Corolla *5 to *75 in. wide, lobes oblong long 
caudate acuminate silvery-pilose within white suffused with pink. 
Corona fleshy, lower lobes horizontal, elliptic-ovate, upper with a 
long subulate spur. Stamen-appendages white, thin, long, caudate 
acuminate. Hab. Hill forests. Malacca (Maingay); Mt. Ophir, 
Penang, Richmond pool (leaves smaller, edge entire, dull pink). 
var. crassifolia Ridl. Journ. Roy. As. Soc. S. By. 61, p. 30. 
Leaves very coriaceous denticulate on the edge. Peduncles and 
petioles bristly-hairy. Corolla-lobes triangular cuspidate, pink, 
villous edged with long hairs. Perak, Tapah on the Temoh Road 
(Ridley). 
(2) H. latifolia Don. Hist. Diehl. PL iv. 127; King, Lc. 568. 
A long climbing and creeping epiphyte. Leaves very thick 
coriaceous, ovate or oblong-ovate acute, base round or cordate, 
reddish green; nerves 3 to 5 from base; 5 to 10 in. long, 3 to 7 in. 
wide; petioles stout, *25 to *5 in. long. Peduncles 6 or 7, stout 
2 in. long on short axillary tubercles, '25 in. long and very thick; 
rachis thick, 1 in. long; pedicels slender, *25 in. long. Flowers 
small, *35 in. across, pink. Calyx minute, lobes ovate acute. Corolla 
rotate pubescent inside, lobes ovate. Corona-lobes membranous, 
lower lobe ovate, horizontal, upper shorter, erect acute. Staminal 
column very short. Follicle 3 in. long, *2 in. through, puberulous. 
Hab. Common in forests epiphytic on high trees or on river banks, 
but not often flowering. Singapore, Garden Jungle; Cluny Road; 
Changi, etc. (Ridley). Johor, Sungei Tebrau. Pahang, Kota 
Glanggi; Kota Tongkat (Evans). 
In flowering branches often the leaves either fall or are not produced, 
making a long floriferous panicle. 
(3) H. lacunosa Bl. Bijdr. 1063; King, Lc. 569; Hook. Bot. 
Mag. 4826, 5272. 
Creeping slender epiphyte. Leaves thick fleshy, ovate to 
lanceolate acute or acuminate, base round or narrowed, 75 to 
175 in. long, *5 to 75 in. wide; petioles *15 in. long. Peduncles 
thick, 75 to 17 in. long, rachis lengthening to *25 in. long; pedicels 
■25 to ‘35 in. long. Calyx-lobes as long as tube. Corolla ‘25 in. 
