Aerides.] 
CXXXVI. ORCHIDE^. 
183 
larger. Petals narrower. Lip large saccate, side-lobes long erect, 
curved, midlobe narrow acute, spur curved, horn-shaped. Capsule 
fusiform, 1 to 1-25 in. long. Hab. Not rare, especially on trees 
near the sea. Johor, Pulau Tinggi (Nanson). Malacca (Maingay). 
Selangor, Bukit Hitam (Kelsall). Perak. Kedah, Yan. Lankawi 
(Curtis). Disirib. Cochin-China, Indo-Malaya. 
Very variable. The peninsular form is A. virens Lindl. Bot. Reg. 41, 
with flaccid leaves and short racemes, but the finer variety A. suavissimum 
Lindl. does occur. This has the lip midlobe longer and emarginate. Var. 
bicuspidatum Hook fit. F.B.I. he. 47, with the lip bicuspidate at tip occurs 
in Perak and Malacca (Maingay). 
(2) A. multiflorum Roxb. Cor. PI. iii. 63, /. 271; Hook. F.B.I. 
vi. 44. A. affine Wall. Cat. 7316; Bot. Mag. t. 4049. A. roseum 
Lindl. Paxt. FI. Gard. ii. 109, t. 60. 
Stem stout, 4 to 10 in. long. Leaves 6 to 8 in. long, bilobed. 
Racemes 6 to 12 in. long. Flowers 75 to 1*25 in. wide, rose purple 
(sometimes spotted darker). Sepals and petals sub-equal oblong 
round tipped. Lip twice as long, sides recurved, claw geniculate, 
bent, midlobe hastate-ovate, tip round, a 2-lobed callus on base, 
spur curved forward. Capsule -6 to 2 in. long, club-shaped. Hab. 
Kedah, Baling (Williams). Disirib. India to Tenasserim. 
72. THRIXSPERMUM, Lour. 
Terrestrial or epiphytic. Stems long or rather short, rooting at 
intervals. Leaves oblong or lorate bilobed or ovate amplexicaul. 
Peduncles long, rarely short; racemes flat with persistent dis¬ 
tichous bracts gradually lengthening. Flowers large or medium, 
opening 1 or 2 at a time. Sepals and petals sub-similar lanceolate 
or ovate blunt or elongate caudate filiform. Lip saccate, side- 
lobes falcate, midlobe fleshy with 1 or 2 calli on disc. Column 
foot short. Anther ovate. Pollinia 2, with small or large disc, 
caudicle short or o. Capsule narrow elongate. 
Sepals and petals not caudate.' 
Leaves ovate amplexicaul; sepals and petals 
ovate blunt ..... 
Leaves lanceolate or lorate. 
Sepals and petals lanceolate; flowers white. 
Peduncle short flat, raceme broad. 
Midlobe large conic .... 
Midlobe short blunt .... 
Peduncle slender; raceme narrow. 
Flowers small ..... 
Sepals and petals long filiform caudate. 
Lip 3-lobed. 
Lip and petals 2 in. long, yellow; lip dotted 
pink ...... 
Lip and petals 2*5 in. long, lanceolate to long- 
acuminate yellow .... 
Lip and petals -75 in. long; lip orange, 
pubescent ..... 
(1) T. lilacinum 
(2) T. calceolus 
{3) T. pauciflorum 
(4) T. montanum 
(5) T. arachnites 
(6) T. Scortechinii 
(7} T. crassifolium 
