long. Peduncles leaf-opposed, slender, decurved, three to 

 four inches lono^, naked, except a few short, tubular, 

 truncate sheaths at the base, one- to three-flowered. 

 Brads oblong, sheathing, one-half to three-fourths of an 

 inch long, coriaceous, green. Pedicel with ovary an inch 

 and a half long. Flowers three and a half inches broad 

 from the tip of the dorsal sepal to that of the lip. Sepals 

 linear, spreading, oblong, convex, pale green, dorsal two 

 inches long, lateral rather longer. Petals rather shorter 

 than the sepals, linear-lanceolate, acute, pale green. Lip 

 sub-reniformlj quadrate, two inches in diameter when 

 spread out, abruptly narrowed at the tip into a broad 

 cusp, white, with a yellow green disk, and two short keels 

 near the base, margins strongly recurved on the basal half ; 

 spur shorter than the sepals, very dark green, campanu- 

 late at the base, then constricted, geniculate, and ending 

 in narrowly fusiform, acute dagger. Column very short, 

 its sides dilated into two parallel ovate-lanceolate auricles. 

 —.7. D. H. 



Fig. 1, base of lip and columo ; 2, anther ; 3 and 4, poUinia .—nU enhmjeJ. 



