THE FLORA OF THE MALAY· PENINSULA

218 CXXXVI. ORCHIDElE. [Zeuxine
lanceolate acute glabrous reddish. Petals white ad nate to upper
one. Lip, base saccate narrowed to limb, which is bilobed, lobes
oblong divaricate, callus in sac conic emarginate. Hab. Very
rare. Perak, Temengoh in a grassy swamp, one plant (Ridley).
(6) Z. biloba Rtdl. Journ. F.M.S. Mus. iv. 73.
Stem 6 to 7 in. tall. Leaves ovate-Ianceolate, base round, tip
acute, 2'5 to 3 in. long, '75 to 1 in. wide; petioles '5 to '74 in.
long. Scape 8 in. tall, pubescent, lower part nude. Flowers about
20, lax. Upper sepal lanceolate blunt red-spotted at base, tip
white, laterals oblong blunt red-hairy, '25 in. long. Petals linear
blunt. Lip, base saccate, 2 short crenulate ridges inside, claw short
channelled with a pair of triangular lobes on edge, limb large of
2 white obovate round lobes. Hab. Rare. Mountain forests.
Pahang, Telom (Ridley).
(7) Z. rupestris Rtdl. Journ. Roy. As. Soc. S. Br. 39, p. 86;
Mat. i. 218.
Plant slender, 6 to 8 in. tall. Leaves few lanceolate narrow
blunt, '5 to '75 in. long, '12 in. wide. Scape slender pubescent.
Flowers 2, terminal white. Sepals ovate hairy. Petals adnate
to upper sepal. Lip with 2 linear processes in sac, claw minutely
denticulate terete, limb of two oblong truncate lobes. Capsule
'25 in. long. Hab. Rare, on the top of rocks in dead leaves at
2500 ft. altitude. Penang Hill (Ridley).
(8) Z. violascens Rtdl. Mat. i. 218. Hetreria purpurascens
Bl. Orch. Ind. 105, pl. 37. Psychechilus purpurascens Bl. l.c. p. 71,
pl. 18, fig. 3.
Slender plant, 6 to 10 in. tall. Leaves lanceolate or ovatelanceolate
acute purple with or without a central pink vein, '5 to
1 in. long, '5 in. wide; petioles '12 in. long. Scape pubescent.
Flowers 5 or 6 crowded at tip. Sepals oblong blunt, '2 in. long.
Petals adnate to upper one. Lip as long as sepals, 2 curved processes
in sac, sides involute, tip broader rounded obtuse. H abo
Very rare, in wet forest, Johor, Tanjong Kupang (Ridley). Distrlb.
Sumatra, Java.
98. CHEIROSTYLIS, Bl.
Terrestrial herbs, with small flowers in a raceme. Sepals connate
in a gibbous-based tube to middle. Petals narrow. Lip insert at
base of column, base saccate erect, limb shortly clawed, then
broadly dilate toothed, crenate or entire. Column short with
2 appendages in front. Rostellum bifid; stigmas 2 lateral. Anther
erect, pollinia 2, caudicle short, disc oblong. Species about 20,
Indo-Malaya, China, Formosa.
(1) Ch. flabellata Wight, Ic. v. 16; Hook. fil. F.B.I. vi. 105.
C. Goldschmidtiana Schlechter Orclus, 1915, 4, pl. i.
Whole plant 3 to 6 in. tall. Leaves ovate, '5 to 6 in. long,
'25 in. wide, blunt. Scape slender with a few rather large sheathing