and branehlets horizontal and flexuous ; bracts small, spread- 
ing, triangular-ovate, erect or recurved. Flowers one half 
inch diameter, bright yellow, with greenish sepals, not spotted. 
Sepals and Petals subequal, small, spreading and reflexed, 
orbicular-obovate, concave, the dorsal sepal galeate. Lip very 
much larger than the petals, three-lobed ; lobes (and crests) 
variable, lateral orbicular or oblong, more or less recurved or 
auriculate towards the column ; mid-lobes orbicular or broader 
than long, concave, emarginate ; callus of the disk consisting 
of two lateral bosses and a central ridge which notched and 
truncate in front. Column stout, with two large spreading 
hatchet-shaped wings, a beaked rostellurn, and a curved basal 
projecting horn. — J. D. II. 
Fig. 1, Side, and 2, front view of flower :—both enlarged. 
