distinct channelled conduplicate petiole, up to about 88 
cm. long and 2.8 cm. wide, rather abruptly acute, char- 
taceous, with the mid-nerve suleate above and conspicu- 
ously carinate beneath. Inflorescences 1-flowered, num- 
erous, solitary in the axils of the complanate distichous 
sheaths of the stem; peduncles short, arcuate, about 4.9 
cm. long, entirely concealed below by several imbricating 
complanate nervose sheaths. Pedicellate ovary slender, 
aurcuate-decurved, about 1 cm. long, subtended by an 
ovate concave abruptly acute bract which is about 2.1 
cm. long. Flower nodding, campanulate. The upper por- 
tion of the sepals and petals is more or less spreading. 
Dorsal sepal oblanceolate-oblong, about 2.2 ¢m. long and 
7.2mm. wide above the middle,acuminate, many-nerved. 
Lateral sepals similar, about 2.85 ecm. long and 8 mm. 
wide. Petals similar to the sepals but smaller, acuminate, 
about 1.9¢em. long and 5inm. wide. Lip relatively small, 
sessile, slightly recurved and longitudinally tubular-in- 
volute in natural position, 8-lobed at the apex, when ex- 
panded the lamina is suborbicular-obovate, about 9 mm. 
long and 7.6 mm. wide; free portion of lateral lobes por- 
rect, triangular-ovate, broadly rounded; mid-lobe semi- 
orbicular, concave, 2 mm. long, 4 mm. wide, separated 
from the lateral lobes (which it scarcely exceeds) by a 
deep sinus. Center of disc provided with a subquadrate 
apically 2- or 3-lobulate callus and near the base in the 
middle with several inconspicuous warts. Column stout, 
slightly arcuate, flattened on the anterior surface, about 
7 mm. long. 
Another collection (Brenes 178) shows a cluster of fi- 
brous glabrous roots. Its single pseudobulb is about 7.5 
em. long and 2.9 cm. wide. The leaf on the pseudobulb 
is about 45.2 em. long and 8 em. wide. The floral bract 
is about 2.3 cm. long, and the parts of the flower are a 
little larger than in the type collection. 
[ 95 | 
