the upper sheath (on either side of the pseudobulb) being 
elongate and leaf-bearing ; pseudobulbous portion strong- 
ly complanate, narrowly cylindric to ellipsoid, unifoliate, 
up to about 5 cm. long and 1.5 cm. wide in the dried 
specimen. Leaves linear to linear-elliptic, up to 17.5 em. 
long and 1.3 cm. wide, narrowed to an acute apex, cu- 
neate-narrowed to a subsessile base, thickly chartaceous 
when dried. Inflorescences one or two to a pseudobulb, 
lateral, short but surpassing the pseudobulb, up to about 
9 cm. tall, very loosely 4- to 6-flowered, with the slender 
rachis more or less flexuous above. Floral bracts broadly 
ovate, acute, cucullate, spreading, up to 7 mm. long, 
membranaceous. Flowers very small for the genus, with 
spreading segments and with subfleshy sepals and petals. 
Dorsal sepal free, oblanceolate-elliptic, about 18 mm. 
long and 4.8 mm. wide, acute, 5-nerved, dorsally subcari- 
nate. Lateral sepals elliptic-oblong, about 13.7 mm. long 
and 4mm. wide, acute, 5-nerved, dorsally carinate along 
the middle. Petals similar to the dorsal sepal, obliquely 
oblong-oblanceolate, sharply acute, about 12.1 mm. long 
and 4 mm. wide, 8- (or indistinctly 5-) nerved. Lip ad- 
nate up to about the middle of the column; suborbicular- 
obovate in outline, spreading, about 11 mm. long and 
12 mm. wide when expanded, broadly cuneate toward 
the base, lightly retuse at the apex, with irregularly 
crenulate margins except near the base; lamina slightly 
concave near the base with a small forcipate pubescent 
callus. Column short and stout, about 5.7 mm. long at 
the back, with a pair of prominent porrect obliquely 
triangular fleshy arms just above the junction with the 
lip; clinandrium large, with high erect and irregularly 
denticulate margins. Anther obliquely semiorbicular- 
conic, papillose. Pollinia two, complanate-ovoid. 
Aspasia pusilla is remarkable for its small size and 
slender proportions. In having a dorsal sepal which is 
[ 22 ] 
