lamina obovate to oblanceolate or elliptic, up to 7 em. 
long and 2.8 em. wide, subacute to rounded at the mi- 
nutely tridenticulate apex, more or less long-narrowed 
below, chartaceous, with three prominent nerves in the 
dried specimen; petiole slender, gradually dilated to the 
base of the leaf, up to 5 em. long. Inflorescence 1-flow- 
ered, conspicuously surpassing the leaves, arising from 
the stem below its apex, slender, erect to arcuate or flexu- 
ous, up to 19 cm. long to the base of the flower, provided 
with several inconspicuous tubular sheaths—two or three 
at the base, one on the lower or middle portion and one 
near the flower. Flower rather small forthe genus, yel- 
lowish brown with the ‘‘central lip dark red.’’ Sepals 
wide-spreading, with abrupt long tails, connate below into 
a very shallow cup, pubescent on the inner surface with 
more or less clustered or stellate short hairs. Dorsal sepal 
about 4.1 em. long; cup about 5.5 mm. high; free portion 
suborbicular-ovate, concave, with an abrupt tail which is 
about 3.8 cm. long, slender, fleshy and subterete. Lat- 
eral sepals similar; free portion obliquely semiorbicular- 
ovate, with an abrupt tail about 3.2 cm. long. Petals very 
obliquely triangular-oblong, about 4.8 mm. long, ob- 
liquely tridentate at the apex with the lateral teeth sub- 
acute and the middle tooth shorter and blunter, produced 
at the base in front into a triangular-decurved lobule; on 
the upper part and close to the anterior margin is a low 
fleshy keel which extends to the tip of the basal lobule. 
Lip nearly as long as the petals, somewhat recurved in 
natural position with the basal part lightly concave, the 
central part suleate with the sides revolute, and the apical 
part with reflexed sides; when expanded the lamina is 
about 4 mm. long, ovate-pandurate with the basal part 
obovate-rhombic and the anterior part obovate-cuneate, 
broadly truncate and with a central fleshy thickening 
prolonged into asmall abrupt apicule; dise at base with 
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