Herba epiphytica, usque ad 2.5 dm.alta. Pseudobulbi 
fusiformes, sulcati, aggregati. Folia elliptico-lanceolata, 
obtusa vel acuta. Inflorescentia multiflora, bracteae or- 
biculares. Sepalum dorsale anguste elliptico-lanceola- 
tum, acutum, trinervium. Sepala lateralia late lanceolata, 
acuta, trinervia. Petala oblanceolata, acuta vel obtusa, 
paulo denticulata, trinervia. Labellum trilobatum; lobi 
laterales semiarcuati: lobus medius lanceolatus. Columna 
generis. 
Pseudobulbs suleate, fusiform, aggregated, covered 
or sheathed with fibrous maculate sheaths, 2.2-4 cm. 
long, 0.2-0.6 em. thick when dry. Leaves elliptic-lan- 
ceolate, obtuse or acute, usually constricted near the apex, 
the blades often with one or two pairs of prominent lat- 
eral nerves but none marginate, 6-10 em. long, 1-2 cm. 
broad. Peduncle slender, 15-25 ecm. long. The distichous 
multiflorous raceme up to 15 em. long, rather dense, the 
alternate flowers about 2 mm. apart. Bracts orbicular, 
about as long as or usually a little exceeding the ovary 
in length, 1.5-2 mm. long and as broad. Dorsal sepal 
narrowly elliptic-lanceolate, acute, 38-nerved, about 3.8 
mm. long and 0.8 mm. broad. Lateral sepals broadly lan- 
ceolate, acute, 8-nerved, 3-3.2 mm. long, 1-1.3 mm. 
broad. Petals oblanceolate, acute or obtuse, slightly den- 
ticulate, 8-nerved, 2.6-3.1 mm. long, about 1 mm. broad. 
Lip 8-lobed, about 2 mm. long and 1.7 mm. broad; the 
lateral lobes semiarcuate, usually obtuse, about 1 mm. 
long; middle lobe lanceolate, about 1 mm. long from 
the sinus of the lateral lobes,—with a large callus at the 
Junction of the lip with the foot of the column and two 
‘arinue extending from the large callus to about opposite 
the sinuses of the lobes. Column of the subgenus, short, 
about 1.8 mm. long; the stelidia arising about opposite 
the stigma, semiovate; rostellum rather large, ligulate; 
clinandrium 8-dentate at the apex. 
[52] 
