THE FLORA OF THE MALAY· PENINSULA

I2 CXXXVI. ORCHIDE..£. [Microstylis.
long, 1'20 in. wide or less. Raceme 4 in. tall, nude below with
about 6 flowers, distant at the top. Bracts lanceolate acuminate
deflexed, '1 in. long. Pedicel and ovary slender, '3 in. long. Sepals
and petals linear narrow, '25 in. long. Lip oblong-orbicular, base
broad truncate, no auricles, edge toothed, teeth rather long
acuminate, '25 in. across, green, strongly veined. Column short,
arms short blunt emerald green. Hab. Lankawi, Kwala Kwah
(Haniff).
The original M. macrochila Rolfe, is considerably larger than this, the
lip being 1 m. long and dark red. It is a native of Siam.
(5) M. congesta Rchb. fil. Walp. Ann. vi. 206; King, Ann. Bot.
Gard. Calc. viii. 19, pl. 23; Ridl. Mat. i. 14.
Stem swollen at base, 2 in. tall. Leaves 4 to 5 unequal ovate
to ovate-Ianceolate acuminate, largest 6 to 7 in. long, 2 in. wide.
Raceme 8 to 12 in. long, basal half nude. Flowers very small
crowded yellow or crimson. Sepals oblong, laterals broader.
Petals linear. Lip, auricles 0, 3-lobed, side lobes broad blunt,
median longer narrower. / Capsule '5 in. long, oblong obconic ribs
crenulate. Hab. Common in dry woods, Singapore, Bukit Timah;
Kranji. Malacca, Batu Tiga; Mount Ophir and Sungei Hudang
(Derry). Pahang, Selinsing (Machado). Perak, Thaiping Hills at
2500 ft. altitude. Penang Hill and Pulau Betong (Curtis), Lankawi
(Curtis). Setul. Distrib. India, Cochin-China. Borneo, China,
Australia. Natwe name: Sigundol hutan.
(6) M. flavoviridis Ridl. Journ. Roy. As. Soc. S. Br. 61, p. 37.
Stem weak ascending, whole plant II in. long. Leaves scattered
lanceolate, 2 in. long, '75 in. wide, narrowed to petiole, '5 in.
long. Raceme few-flowered; flowers distant small. Bracts -12 in.
long, very narrow. Flowers '12 in. wide, greenish yellow turning
light red; pedicels slender longer than bract. Upper sepal linear,
laterals deflexed wider oblong blunt. Petal narrower oblong. Lip
sub-triangular oblong; auricles long acute, limb triangular-Ianceolate
narrowed to retuse lip. Hab. Very rare, Perak, Gunong Kerbau
on Gunong Bal, at 4500 ft. altitude (Haniff).
(7) M. micrantha Hook. fil. F.B.I. v. 688; Ie. Pl. t. 1834;
Ridl. Mat. i. 14.
Stem not swollen, slender creeping, 6 in. long or more. Leaves
sub-distichous, lanceolate or ovate-Ianceolate, acute crisped coppery,
2 to 4 in. long, '75 in. wide; petioles purple, '5 in. long. Scapes
1 to 2 slender, 6 to 8 in. long. Flowers very small, scattered.
Sepals lorate blunt, purplish. Petals a little smaller. Lip ovate,
auricles lorate blunt large, teeth at tip 4, short acute and median
one blunt, bright yellow. Column green, arms rounded. Capsule
oblong, '5 in. long. Hab. On rocks, and among dead leaves in damp
forest, Singapore, Changi; Selitar. Johor, Batu Pahat; Tempayan
River, Malacca (Derry). Perak, Thaiping Hills (Hervey, Scortechini).
Distrib. Borneo.