brous, slender, glabrous, more or less elongate. Rhizome 
apparently abbreviated, woody. Pseudobulbs approxi- 
mate, cylindric to fusiform, unifoliate or rarely bifoliate 
at the apex, about 8-5 cm. long, invested to above the 
middle with two to three imbricating tubular evanescent 
sheaths of which the uppermost is the largest, rather 
slender and striate-rugose in the dried specimen. Leaves 
ovate or elliptic-ovate to ovate-oblong, acute or subacute 
with a more or less conspicuous apicule, rounded to sub- 
cordate at the sessile base, about 4-8 cm. long, 2-2.7 
cm. wide, commonly horizontally spreading, green above 
and red to dark purple beneath. Inflorescence terminal, 
abbreviated, up to 2 em. long, recurved in anthesis, with 
a very short naked peduncle; raceme congested, umbel- 
liform, about 8- to 8-flowered; floral bracts lanceolate or 
ovate-lanceolate, acuminate, concave, more or less shorter 
than the pedicellate ovary. Flowers small, but large for 
the plant, with widely spreading segments. Dorsal sepal 
oblong-lanceolate or elliptic-lanceolate, acute, mucron- 
ate, 3- or sometimes 5-nerved, 10-11.2 mm. long, 8.6—4 
mm. wide, longitudinally convex. Lateral sepals ob- 
liquely oblong-lanceolate or elliptic-lanceolate, compli- 
cate-acute and mucronate with a prominent denticulate 
keel through the upper half, obliquely inserted at the 
base of the column, 8- or indistinctly 4-nerved, about 
11-13 mm. long on the posterior margin and 3.6—4.2 
mm. wide. Petals obliquely linear or oblanceolate-linear, 
acute, 1- to 8-nerved, about 9-11 mm. long and 1.3-1.9 
mm. wide above the middle. Lip adnate to the column 
up toits apex; lamina deeply 3-lobed in about the mid- 
dle, more or less deeply cordate at the base, about 4-5 
mm. long in the center and 6.2 mm. wide across the 
lateral lobes; lateral lobes obliquely semiovate or aliform, 
acute to obtuse: mid-lobe more fleshy, elliptic-ovate or 
ovate and acute, rarely ovate-lanceolate and acuminate, 
[ 140 | 
