de Ames and Quisumbing: Philippine Orchids, VI 9 
subacutum, 9 ad 10.5 mm longum, 3 ad 3.25 mm latum. Petala 
elliptico-lanceolata, apice attenuata, acuta, 8.5 ad 9.5 mm longa, 
2.75 ad 3 mm lata. Labellum calcaratum, trilobatum; lobi 
laterales erecti, apice oblique truncati, postice ad columnam at- 
tingentes; lobus medius e calcaris medio exoriente, minutus, re- 
flexus, lineari-lanceolatus, apice obtusus, 2.5 ad 3 mm longus, 
0.75 ad 0.9 mm latus. Calcar cylindricum, leviter curvatum, 
apice lateraliter abrupte inflatum et rotundatum, 10.25 ad 11 
mm longum. Columna rigida, perbrevis, crassa, 4.5 ad 5 mm 
alta. Anthera obovoidea, 1.7 ad 1.8 mm longa. Pollinia 
oblonga. : 
Roots dark gray, elongate, 3.5 to 4 mm in diameter. Stems 
erect or curved, rigid, terete, 20 to 30 cm long, about 1 cm in 
diameter. Leaves distichous, rigid, ligulate, approximate, very 
leathery, unequally bilobed at the rounded apex with obtuse 
lobules, 11 to 18.5 cm long, 2 to 3 cm wide. Panicles lateral, 
many-flowered, 20 to 35 cm long; peduncles erect, rigid, 12 to 
15 cm long; sheaths short, tubular, 4 to 5 mm long. Pedicellate 
ovary slender, 11 to 15 mm long. Flowers odorless, 15 to 17 
mm long, 6 to 8 mm wide. Lateral sepals unguiculate, parallel, 
oblanceolate, acute or obtuse, 9 to 12 mm long, 4.5 to 5 mm wide, 
the very base about 1.25 mm wide, above the middle provided 
with a more or less distinct triangular-ovate lobule. Dorsal 
sepal oblong-oblanceolate, acute or subacute, 9 to 10.5 mm long, 
3 to 3.25 mm wide. Petals parallel, elliptic-lanceolate, narrowed 
to the acute apex, 8.5 to 9.5 mm long, 2.75 to 3 mm wide. 
Labellum spurred, trilobed; lateral lobes erect, obliquely truncate 
at the apex, attached to the column at the base; middle lobe 
very small, linear-lanceolate, reflexed, obtuse at the tip, 2.5 to 
3 mm long, 0.75 to 0.9 mm wide. Spur cylindric, elongate, 
curved, laterally abruptly dilated and rounded at the apex, 
10.25 to 11 mm long, 3 to 3.5 mm in diameter at the very apex, 
when viewed from the front. Column rigid, very short and 
thick, 4.5 to 5 mm high. Anther obovoid, 1.7 to 1.8 mm long. 
Pollinia oblong. 
DINAGAT ISLAND, Osmefia, Dinagat, Phil. Nat. Herb. 387 L. E. 
Hachero, October, 1933. Growing on tree trunks in the coasta! 
forests on Dinagat Island, northeast of Mindanao. Living 
plants were sent to the junior author through Dr. E. B. Cope- 
land, formerly of the Economic Garden, Bureau of Plant Indus- 
try, and have flowered in the Bureau of Science orchid house 
twice—May 12, 1934, and March 6, 1935. The flowers remain 
fresh on the plant for two weeks. 
