184 
CXXXVI. ORCHIDEiE. 
[Thrixsfiermum. 
Lip and petals *75 in. long; lip violet . . (8) T. iodochilus 
Lip and petals long white . . . (9) T. leucaraehne 
Lip entire cuspidate; flowers small . . (10) T. notabile 
(1) T. lilacinum Rchb. fil. Xen. Orch. ii. 121; Ridl. Mat. i. 181. 
Sarcochilus lilacinus Griff. Notulce, iii. 334; Ic. PI. vis. t. 320, fig. 2; 
Bot. Mag. t. 7754. 
Stems 3 to 6 ft. long or more. Leaves amplexicaul ovate 
distant, 1 in. long, 75 in. wide. Peduncles stiff, 4 to 10 in. long; 
racemes 3 to 6 in. long; bracts ovate, *25 in. long. Flowers 1 in. 
across, lilac or white. Sepals and petals ovate blunt. Petals 
smaller, spreading. Lip shorter, side-lobes falcate acute, midlobe 
blunt conic with an oblong callus on disc, base saccate. Capsule 
cylindric, 4 in. long, -2.5 in. thick. Hab. In grassy open swamps, 
terrestrial scrambling over bushes. Singapore, Holland Road; 
Selitar. Johor, Genuang. Pahang River, Pulau Chengei; Pekan. 
Malacca, Ayer Panas (Derry); Chabau. Selangor, Pudu (Good- 
enough) ; Port Swettenham (Williams). Perak, Thaiping; Changkat 
Jerin (Wray). Kelantan River near Chaning. Distrib. Borneo, 
Java. Native name : Rumput Sesudu Paya. 
var. montanum Ridl. A fairly stout, much-drawn-up plant with 
more distant lanceolate leaves and stouter peduncle with longer 
sheathing leaves and sepals and petals rather acute. Hab. Moun¬ 
tains at 4000 to 5000 ft. altitude, in forest. Pahang, Telom. Perak, 
Thaiping Hills near cottage. 
Perhaps Blume’s ill-described T. amplexicaulis. I have never been able 
to find any flowers in a fit state to describe. Blume describes the lip of 
his species as muricate. 
(2) T. calceolus Rchb. fil. Xenia, Orch. ii. 122 ; Ridl. Mat. i. 181. 
Sarcochilus calceolus Lindl. Bot. Reg. 184s, t. 10. S. brachystachys 
Hook. fil. F.B.I. vi. 41. 
Stems stout, 10 to 12 ft. long or less, slightly flattened. Leaves 
lanceolate coriaceous, 2 to 4 in. long, bilobed, sheaths -5 in. long. 
Racemes 1 in. long, one to three together, sessile. Bracts ovate 
cucullate, -25 in. long. Flowers 2 in. across, white fragrant; 
pedicels and ovary -5 in. long. Sepals broad lanceolate acute 
keeled. Petals narrower oblanceolate. Lip shoe-shaped, base 
saccate, side-lobes falcate acute, midlobe conic blunt, callus oblong 
truncate, retuse at top, all white except orange round callus, and small 
orange and crimson dots at base of lip. Capsule cylindric, 6 in. long. 
Hab. In large clumps on rocks or trees, prostrate. Singapore, 
Jurong River; Pulau Tekong. Johor, Tana Runto; Batu Pahat. 
Pahang, Kwala Tenok, Tahan River. Negri Sembilan, Gunong 
Angsi; Siliau (Williams). Dindings, Telok Sera (Curtis). Pqnang 
Hill (Maingay); Telok Bahang (Curtis). Distrib. Sumatra, Laos. 
(3) T. pauciflorum Ridl. Mat. 182. Sarcochilus pauciflorus 
Hook. fil. F.B.I. vi. 41. 
Stem -2 in. through. Leaves oblong blunt, 2*3 to 3 in. long, 
