THE FLORA OF THE MALAY· PENINSULA

Platyclinis.] CXXXVI. ORCHIDElE.
distant. Leaf coriaceous elliptic-Ianceolate blunt, base narrowed,
4'5 in. long, 1'5 in. wide or smaller; petioles '5 in. long. Scape
nodding, 4 to 6 in. long, basal half nude. Bracts lanceolate blunt.
Flowers numerous fleshy. Sepals broad lanceolate blunt. Petals
shorter. Lip fleshy, side-lobes minutely toothed, tips free lanceolate
acuminate, ridges 2, short from base to near middle of lip, midlobe
ovate acuminate toothed. Column short straight, hood oblong tall
toothed, arms short from near stigma, broad acuminate. Hab.
Perak, Gunong Kerbau at 6500 ft. altitude (Robinson).
(9) P. Kingii Hook. /il. F.B.I. v. 708; Ic. Pl. t. 2015.
Pseudo bulbs elliptic-oblong, I in. long. Leaf lanceolate-linear
acuminate, 6 to 10 in. long, '25 in. wide. Racemes 9 in. long,
lower half nude. Flowers about 24, pale green, lip darker, '25 in.
wide. Bracts lanceolate twice as long as ovary. Sepals lanceolate
acute. Petals wider. Lip side-lobes broad round, midlobe ovate
or lanceoiate with 2-curved calli at base. Column very short,
broad arms short toothed from upper part, hood long entire. Hab.
Mountains, Pahang, Gunong Tahan. Perak, Thaiping Hills (all
collectors); Gunong Kerbau (Robinson). Distrib. Borneo.
(10) P. sarawakensis Ridl. Journ. Linn. Soc. xxxi. 267.
Pseudobulbs oblong, '75 in. long. Leaf lanceolate, 7 in. long,
'75 in. wide; petioles I in. long. Racemes 8 in. long. Bracts
lanceolate acute. Sepals lanceolate acute. Petals blunt, all
greenish yellow. Lip side-lobes sub-quadrate toothed, midlobe
oblong ovate cuspidate, green, a double keel at base. Column
short, hood large, arms very short oblong toothed. Hab. Rare.
Perak, Thaiping Hills (Curtis). Distrib. Borneo.
6. DIPLOCAULOBIUM, Rchb. fi1.
Epiphytes pseudobulbs slender crowded. Leaf I, coriaceous.
Flower solitary terminal from an ovate or lanceolate bract on a
long slender peduncle. Sepals and petals lanceolate caudate,
mentum short blunt. Lip 3-lobed, side-lobes erect falcate, midlobe
longer, base narrowed, tip abruptly dilate with 2 keels.
Column very short. Species about 30, Amboina, Papua, Polynesia,
I in Singapore and Borneo.
(I) D. longicolle Kranzl. Pflanzen reich. iv. 50, p. 340. Dendrobium
longicolle Lmdl. Bot. Reg. 1840; Mt·sc. 127; Ridl. Mat. i. 34.
Rhizome short; pseudobulb in large clumps flattened, clubshaped,
4 to 8 in. long, '12 in. through at base. Leaf lanceolate
unequally bilobed, 5 in. long, I in. wide. Bracts brown lanceolate
acute, I in. long. Pedicel 3 in. long. Sepals 1'5 in. long, '25 in.
wide at base, yellow, tipped red, mentum '25 in. long. Petals
similar smaller. Lip yellow, side-lobes '25 in. long, midlobe cordate,
edge crisped, base narrowed. Column yellow. Hab. Rare. On
tree-stumps and on ·the ground, woods near the sea, Singapore
(Cuming); Sungei Morai (Ridley). Distrib. Borneo.