Rhynchostylis.] 
CXXXVI. ORCHlDEx®. 
163 
64, RHYNCHOSTYLIS, Bl. 
Epiphytes; stems short stout. Leaves coriaceous lorate bilobed. 
Raceme short stout dense-flowered. Flowers small pink or white. 
Sepals and petals subequal. Lip adnate to column, base spurred, 
no side-lobes; midlobe clawed. Column short stout, no foot. 
x 4 nther flat beaked. Pollinia 2, semi-ovate, caudicle linear, disc 
ovate. Rostellum bifid. Species 2, Indo-Malaya. 
Leaves very broad bluntly bilobed; lip pandurate . (1) R. gigantea 
Leaves narrow, lobes acute; lip cuneiform . . (2) R. retusa 
( 1 ) R. gigantea Ridl. Journ. Linn. Soc. xxxii. 356; Mat. i. 
158. Saccolabium giganteum Lindl. Gen. and Sp. Orch. PI. 221; 
Bot. Mag. t. 5635. 
Leaves 1 ft. long, 2 to 3 in. wide, very thick. Racemes 9 to 
12 in. long, very dense-flowered. Flowers 1 in. wide, white or 
spotted pink, lip violet pink. Upper sepal ovate blunt, base narrow. 
Petals oblanceolate blunt. Lip pandurate retuse, a blunt tooth in 
notch and conic process beneath tip, spur straight flattened. Capsule 
1-5 in. long. Hab. Very rare in Peninsula. Singapore, Selitar on 
a lofty Hopea (Ridley). Pulau Aor, east coast of Johor. Dislrib. 
Cochin-China, Siam. 
{2) R. retusa BL Bijdr. 286, t. 49; Ridl. Mat. i. 158. Sacco¬ 
labium gutlatum and S. praemorsum Lindl. Orch. PI. 220, 221; Bot. 
Mag. t. 4108. S. Blumei Lindl. Seri. Orch. t. 47. 
Leaves elongate lorate obliquely bilobed, lobes acute, 10 to 20 in. 
long, -6 to 2 in. wide. Racemes 4 to 20 in. long; flowers -5 to -6 in. 
wide, white blotches rosy purple. Sepals orbicular-ovate, upper 
one oblong. Petals elliptic blunt. Lip rosy purple, limb cunei¬ 
form entire or emarginate, spur compressed blunt pubescent inside. 
Capsule clavate, 1 to 1*5 in. long. Hab. Scarce. Perak, near 
Grit (Hobson). Lankawi isles (Curtis). Setul, Bukit Rajah Wang 
(Haniff). Distrib. India, Siam, Java, Philippines. 
65 . SACCOLABIUM, Bl. 
Epiphytes; stems long or usually short. Leaves coriaceous 
lorate or oblong or terete, often bilobed at tip. Racemes or panicles 
lateral. Flowers small, usually numerous. Sepals and petals free, 
sub-similar. Lip sessile at column-base, side-lobes small erect 
forming walls to spur-mouth, midlobe small usually ovate, spur 
saccate or conic cylindric usually with a callus in the back of the 
spur mouth and frequently a ridge more or less developed on the 
lower face, scmetimes running as a wall across the spur and divid¬ 
ing it into two halves (septum). Column short footless, arms very 
short or none. Anther ovate usually beaked. Pollinia 2, more 
or less split into 4, caudicle narrow-linear, disc shorter ovate or 
SI 
