Lecanorchis .] cxxxvi. orchidevE. 207 
Angsi. Perak, Temengoh. Penang Hill. Kedah Peak. Dislrib. 
Borneo, Siam. Native name: Angrek Besih. 
Schlechter, in Fedde’s Repertorium ix. 248, makes the Bukit Timah plant 
a new species under the name of L. Ridleyana on the ground of its having a 
more or less 3-Iobed lip, and suggests that the other ones are L, javanica Bl. 
I cannot see any difference between the Singapore plant and the Malacca 
one, and think it is quite distinct from the Java plant. 
86. LEUCOLENA, Ridi. 
Leafless saprophyte with elongate fusiform rhizome. Stem 
slender, raceme few-flowered. Flowers small. Upper sepal lanceo¬ 
late blunt, laterals connate beneath lip. Petals adnate to upper 
sepal. Lip small subquadrate or bilobed, clawed. Column with 
very long decurved arms. Anther ovate papillose, attached to 
top of column with a short or long filament. Pollinia 2 or 4, longi¬ 
tudinally grooved on a quadrate disc. Rostellum very small, 
entire or absent. Species 1. 
(1) L. ornata Ridl. Journ. Linn. Soc. xxvii. 340, pi. 43 ; Jonrn 
Roy. As. Soc. S. Br. 50, p. 142; Mat. i. 147. 
Stem 9 to 12 in. tall, olive coloured. Flowers about 7 ; pedicels 
short. Upper sepal and petals *25 in. long, olive brown, laterals 
olive brown with 2 darker streaks and a rosy base. Lip shorter, 
white, centre violet, quadrate bilobed. Column white. Pollinia 2, 
grooved flesh-colour on a disc. Hob. In dense forest. Malacca, 
Bukit Sadanen and Ophir range. Negri Sembilan, Bukit Tangga. 
var. singapurensis. Lip sub-quadrate, with a median tooth, 
limb white, claw violet. Rostellum none. Pollinia 4 free, no 
disc, self-fertilised. Anther-filament much shorter than in type. 
Hob. Singapore, Stagmount on a stream bank. Johor, Sedenak 
(Ridley). 
87 . GASTRODIA, Bl. 
Leafless saprophytes with a cylindric rhizome and a solitary 
brownish succulent stem. Flowers in a lax raceme. Sepals and 
petals connate in a tube more or less split. Lip short adnate to 
the foot of the column and to the perianth entire obscurely 3-lobed. 
Column usually long, 2-winged, foot short or 0, arms short erect. 
Rostellum small; anther hemispheric. Pollinia in 2 granular 
masses. Species 8, Indo-Malaya, Japan, China, Australia. 
Stem tall; perianth lobes free nearly to base . . (1) G. malayana 
Stem short; perianth campanulate .... (2) G. Hasselfci 
(1) G. malayana Ridl. Mat. i. 207. 
Rhizome cylindric, 6 in. long, ringed, -5 in. thick. Stem 9 in. 
tall, purplish brown, with short sheaths with ovate limbs. Flowers 
few short peduncled. Bracts ovate, -25 in. long. Upper sepal 
lanceolate-lorate blunt, laterals prolonged into a short mentum, 
tips pustular, purple brown, mentum green. Petals lorate blunt, 
