Thrixspermum.] cxxxvi. orchide^e. *85 
1*25 to 1-5 in. wide. Racemes few-flowered, ii n. long. Bracts 
sub-acute, -12 in. long. Sepals oblong-lanceolate, -6 in. long, white. 
Petals nearly as large obovate blunt. Lip stipitate yellow, side- 
lobes broad round, blunt, midlobe fleshy blunt, a conic callus at 
base and broad lamella between side-lobes, base of lip saccate, 
conic. Anther ovate blunt. Pollinia 2, deeply bifid. Hab. Perak, 
Thaiping Hills at 3000 ft. altitude (Scortechini). 
(4) T. montanum Ridl. Journ. Linn. Soc. xli. 298. 
Stem stout, 6 in. long or more. Leaves lorate blunt, 6 in. long, 
1 in. wide. Peduncle slender, *3 in- long raceme 1 in. long, few- 
flowered, slender. Bracts ovate acute. Flowers about 7. Sepals 
oblong-lanceolate sub-falcate. Lip saccate clawed, side-lobes 
hardly distinct truncate, midlobe short round, spur conoid porrect, 
blunt. Column short broad. Anther ovate, beak truncate quad¬ 
rate. Pollinia oblong. Hab. Selangor, Ulu Langat (Kloss). 
(5) T. arachnites Rchb. fit. Xen. Orch. ii. 121. Dendrocolla arach¬ 
nites Bl. Bijdr. 287, t. 67. Sarcochilus scopa Hook. fit. F.B.I. vi. 40. 
Stem 4 to 6 in. long or more. Leaves lorate-oblong bilobed, 
•6 in. long, -75 in. wide; sheaths 1 in. long. Scapes several; 
peduncles 6 to 8 in. long; racemes 3 to 12 in. long. Bracts close 
acute, *25 in. long; pedicels hardly longer. Sepals and petals 
similar linear-lanceolate caudate, yellow, 2 in. long. Lip yellow 
red-spotted, -5 in. long, side-lobes erect falcate acute, midlobe 
blunt, thick, a quadrate truncate callus on disc, base of lip saccate 
blunt. Capsule cylindric, 3 in. long, *25 in. thick. Hab. On 
orchard trees or bushes, variable in length of stem. Singapore, 
Tanglin; Selitar. Johor, Batu Pahat; KotaTinggi ; Castlewood. 
Negri Sembilan, Siliau (Williams). Selangor, Bukit Hitam (Kelsall), 
Ulu Langat (Kloss). Perak, Chanderiang (Kunstler) Penang 
(Kunstler); Richmond Pool. Distrib. Borneo, Sumatra, Java. 
var. minor Ridl. Leaves narrow linear acute or blunt, 4 in - 
long, *5 in. wide; peduncles x in. long; racemes *25 in. wide. Petals 
and sepals -5 in. long. Lip nearly white, a purple spot at column 
base. Kelantan, Kwala Lebir (Dr. Gimlette). 
The common typical form has a short stem with close-set leaves but it 
is not uncommon to find plants with elongate stems and distant leaves, 
especially in very shady spots. This latter form is Hooker s S. scopa. 
(6) T. Scortechinii Ridl. Journ. Roy. As. Soc. S. Br. 41, p. 42; 
Mat. i. 183. Sarcochilus Scortechini Hook, fd l.c. 40. 
Stem 6 in. long, very stout. Leaves oblong-lorate obcuneate 
bilobed, 3 to 6 in. long, 1 to 1*5 in. wide. Scapes 9 in. long. Racemes 
2 in. long. Bracts close, -6 in. long. Sepals and petals lanceolate 
acuminate, not filiform at tip, 2-5 in. long, yellow. Lip saccate, 
side-lobes short curved blunt, midlobe conic fleshy, yellow mottled 
red inside. Pollinia 4 in unequal pairs, caudicle short, disc crescent¬ 
shaped. Hab. Mountains. Perak (Scortechini); Gunong Kerbau 
at 2000 ft. altitude (Robinson). Kedah Peak. 
