THE FLORA OF THE MALAY· PENINSULA

200 CXXXVI. ORCHIDEA':. [Thelasis.
node globose, upper cylindric, I in. long. Leaves 2, lower one small,
upper 4 to 6 in. long, I in. wide, lanceolate or oblong petioled.
Scape 6 to 10 in. long. Flowers green. Bracts lanceolate cuspidate.
Sepals oblong blunt, not keeled. Petals smaller. Lip lanceolate
sub-acute. Hab. Mountains. Selangor, Gunong Mengkuang
Lebah (Robinson). Perak, Thaiping Hills; Bujong Malacca
(Ridley).
(4) T. carinata Bl. Btjdr. 386; Orch. Arch. Ind. 25, pl. 7, fig. 3.
T. elata Hook fil. F.B.I. vi. 87. Oxyanthera elata Hook. fil.
Ie. Pl. 2156; Ridl. Mat. i. 200.
Pseudobulb none. Sheathing base of leaves 2 in. long, blade
12 to 13 in. long, I in. wide, lorate blunt. Scape 12 to 18 in. long,
racemose part 2 to 4 in. long. Flowers very numerous. Bracts
lanceolate. Sepals lanceolate connivent acute. Petals smaller,
all green tipped white. Lip with short erect side-lobes, mid lobe
oblanceolate mucronate white. Column short. Rostellum much
longer bifid. Pollinia 6, semi-globose on a slender pedicel. Capsule
'12 in. long, fusiform, terminated by the withered perianth. Hab.
Common on mangroves and other trees. Singapore, Sungei Buluh ;
Kranji. Pahang, Pekan; Kota Glanggi. Selangor, Batu Caves
(Ridley). Perak, Goping (Kunstler). Hermitage Hill (Curtis).
Kedah Peak (Robinson). Penang Hill (Maingay). Dlstrzb. Borneo,
Sumatra, Java.
(5) T. decurva Hook. fil. F.B.I. vi. 87. Oxyanthera decurva
Hook. fil. Ie. Pl. 2157. O. micrantha Rldl. Mat. i. 200.
Leaves 4 or 5 lanceolate blunt or sub-acute; sheaths I to 1'5 in.
long, blade 6 in. long, '5 in. wide. Scape very slender, 5 in. long,
raceme '5 in. long, decurved. Flowers '12 in. long, fawn-colour.
Bracts ovate blunt. Sepals and petals lanceolate blunt. Lip
lanceolate acute. Pollinia 8. Rostellum very long bifid. Capsule
fusiform, '12 in. long. H abo On mangroves and trees on river
banks, Singapore, Kranji. Pahang, Tahan River. Penang Hill.
Distrlb. Malay Isles.
TRIBE III. NEOTTIE£ (GENERA 79-1°4)
79. VANILLA, Sw.
Fleshy climbers with ovate leaves or leafless. Racemes short
stout axillary. Flowers usually large. Sepals and petals sub-equal
spreading. Lip large 3-lobed or entire, flat or convolute. Column
long, anther broad; pollinia granular. Rostellum entire or nearly
so. Fruit long fleshy terete. Seeds minute globose.
Species about 20, all tropical countries.
Leaves large ovate·lanceolate.
LIp explanate 3-lobed short. .
Lip convolute entire long . .
Leafless; flowers rather small, IIp pink
(I) V. Griffithii
(2) V. montana
(3) V. aphylla