ORCHIDACEiE HALCONENSES. 
323 
AGROSTOPHYLLUM Bl. 
Agrostophyllum Merrillii Ames sp. nov. 
Allied to A. saccatum Ridl. Plants stout, about 10 dm. tall, somewhat 
similar in habit and general conformation to A. longifolium Reichb. f. but 
with different flowers, the petals being broader. Leaves oblong, about 
2 dm. long, about 2 cm. wide, rounded at base, tapering very gradually 
' to the bilobed apex. Sheaths formed by the persistent bases of the leaves, 
smooth, about 7 cm. long. Inflorescence capitate, dense, about 2.5 cm. 
in diameter (3 cm. when pressed for the herbarium). Spikelets 3-4- 
flowered. Flowers white. Lateral sepals oblong-lanceolate, acute, 5 mm. 
long, 2-2.5 mm. wide. Upper sepal oblong, acute, 5 mm. long, .about 
2 mm. wide. Petals ovate-lanceolate, 5 mm. long, about 2 mm. wide. 
Labellum 5 mm. long ; hypochil saccate, with blunt, rounded, erect lateral 
lobes, which are connected in front by a transverse plate or callus ; epichil 
very broadly ovate, subacute, 3 mm. long, 4.5 mm. wide, rather fleshy. 
Column 3.5 mm. long, bent at the middle, above the bend provided with 
a blunt, fleshy, 0.5 mm. long process. Fruit about 9 mm. long. 
Epiphyte in forest at 3,000 ft. alt. on Mount Halcon, Nov. 27, 1906, Merrill 
(No. 5844). 
CERATOSTYLIS Bl. 
Ceratostylis ramosa Ames and Rolfe Orchidaceae, fasc. 2 (1907) ined. 
Plants somewhat more slender than the type. 
Mount Halcon, June 15-27, 1906, M. L. Merritt (No. 4418). 
Ceratostylis subulata Bl. Bijdr. 306 (1825 ). — Ceratostylis gracilis Reichb. 
f. Xen. Orch. 2: 92, t. 127. not Bl. 
Epiphyte on exposed ridge at 4,500 ft. alt. on Mount Halcon, flowers dark 
purple, Nov. 14, 1906, Merrill (No. 5766). 
British India, Assam, Malay Peninsula, Borneo, Sumatra, Java and the 
Philippines. 
Phaius Lour. 
Phaius halconensis Ames sp. nov. 
Plants graceful, about 3 dm. high. Leaves 3, lanceolate-acuminate, 
acute, tapering to both ends, about 14 cm. long, 1.5-2 cm. wide. Scape 
rather graceful, sparsely pubescent, about' 3 dm. long, clothed at intervals 
with loose, tubular' sheaths. Floral bracts caducous. Flowers odorless, 
white, turning yellowish, about 8 mm. long, pubescent externally and 
sparsely so internally on the sepals and petals. Lateral sepals lanceolate, 
acute, 9-10 mm. long, 4 mm. wide near the base. Upper sepal similar 
to the laterals. Petals lanceolate, 3-nerved, 9 mm. long, slightly exceed- 
ing 3 mm. in width. Labellum 7 mm. long, 3-lobed; disc pubescent, 
bicarinate to the 'base of the micldle-lobe, 6-7 mm. wide across the middle 
when flattened; lateral lobes ovate, obtuse, ragged-fimbriate on the 
anterior margin; middle lobe subcuneate, truncate, dentate, 3.25 mm. 
