pedicellatum multo breviores. Flores pro genere medi- 
ocres, segmentis late patentibus. Sepalum dorsale an- 
guste lanceolatum, perlonge acuminatum. Sepala later- 
alia oblique lineari-lanceolata, perlonge acuminata, paulo 
longiora. Petala oblique lineari-lanceolata, longe acumi- 
nata, faleato-incurva, sepalo dorsali multo breviora. La- 
bellum pandurato-oblongum, apice rotundatum et longe 
cuspidatum, basi sessili rotundatum, quam sepala multo 
brevius; discus basi cum callis duobus carnosis approxi- 
matis parte apicali conjunctis. Columna perparva, gen- 
eris typica. 
Plant large, said to be allied to B. maculata R. Br. 
Leaf (but one incomplete blade illustrated) large, oblong 
or elliptic-oblong, abruptly subacute or rounded at the 
apex, over 80 cm. long, 6-7 cm. wide. Raceme arcuate, 
densely many-flowered, the rachis being nearly 20 cm. 
long. Floral bracts small, ovate or ovate-lanceolate, 
acuminate, clasping, about one third as long as the ped- 
icellate ovary. Flowers medium-sized for the genus, with 
horizontally spreading segments, greenish white with 
transverse chocolate or chocolate-purple bars near the 
base of the sepals and petals. Dorsal sepal narrowly lan- 
ceolate, long-acuminate, concave, about 6 cm. long and 
6—6.5 mm. wide below the middle. Lateral sepals linear- 
lanceolate, long-acuminate, oblique, slightly falcate- 
incurved, about 6.5 cm. long and 6 mm. wide near the 
base. Petals linear-lanceolate, oblique, long-acuminate, 
faleate-incurved, nearly 4 cm. long when expanded, 
about 5 mm. wide near the base. Lip pandurate-oblong, 
rounded and very abruptly long-cuspidate at the apex, 
sessile at the rounded base, nearly 4.5 cm. long, about 
1 cm. wide near the base and 0.9 cm. wide near the apex ; 
disc at the base with a pair of approximate longitudinal 
fleshy calli which are fused above into a slightly dilated 
abruptly truncate and trilobulate apex. Column very 
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