490 The Philippine Journal of Science 1932 
to the acute apex, articulated to tubular sheaths. Leaf-sheaths 
purplish when young, otherwise green, membranaceous, deci¬ 
duous on the lower part of the plant. Racemes pendulous, few- 
and laxly flowered, up to 8 cm long. Flowers 10 to 13, 2 to 2.2 
cm across, 3 to 3.3 cm long, with rather straight or slightly in- 
flexed spur. Bracts pellucid, minute, triangular, acute, up to 3.5 
mm long, white flushed with purple. Pedicellate ovary 1.5 to 
2.5 cm long, rose purple, pedicel slender. Lateral sepals oblique¬ 
ly oblong-lanceolate, acute, somewhat cucullate at the tip, 13.5 
to 14 mm long near the posterior margin, 7.5 to 8.5 mm wide, 
7-nerved, forming with the column-foot a mentum or spur which 
is elongate, straight or slightly curved, obtuse, about 1.5 cm 
long. Dorsal sepal slightly cucullate with the tip bent forward, 
oblong-lanceolate, subacute, 13 to 15.5 mm long, 5 to 6 mm wide, 
7-nerved. Petals spreading, oblong-elliptic, obtuse, 14 to 15 mm 
long, 6 to 7 mm wide, 5-nerved, margin entire. Labellum simple, 
elongate, 25 to 27 mm long, claw linear, flattened, attached to the 
foot of the column, lamina ovate, 15 to 17 mm long, 12 to 13 mm 
wide at the widest portion (when expanded), the apex broadly 
rounded or slightly retuse, with a very minute mucro in the 
notch, the margin entire or finely crenulate; disc provided with a 
single broad central fleshy keel which is glabrous and extends 
from the column-foot nearly to the apex of the lip. Column 
white, very short and stout, 2 to 2.5 mm long, extended into an 
elongated foot. Anther ovoid, about 2 mm long. 
Luzon, Manila, Bureau of Science orchid house, Bur. Sci. 81511 
Quiswnbing , July 27, 1932. The living plants were originally 
gathered by the botanical collectors Maximo Ramos and Pas- 
cual Convocar, of the Bureau of Science, in May, 1931, from 
Dinagat Island, near Mindanao. The plants are now being cul¬ 
tivated in the Bureau of Science orchid house, and this descrip¬ 
tion was based on specimens which flowered in Manila on July 
25, 1931. The flowers are showy and odorless, and last for two 
or three days. Pedicellate ovary rose purple; sepals naphtha¬ 
lene yellow, usually flushed with rose purple on the back (older 
flowers become cream-colored) ; petals paler, marguerite yellow; 
spur primrose yellow with shades of honey yellow* at the tip 
and flushed on the back with rose purple; column-foot primrose 
yellow and minutely dotted with rose purple; gynostemium and 
anther white; labellum chamois and minutely dotted within 
(particularly at the throat) with rose purple except the tip which 
