NOTES ON PHILIPPINE ORCHIDS, IV. 
23 
Leaves linear, asymmetrical at the tip, 20 to 26 cm long, 
1,5 to 1.7 mm wide. Peduncle up to 24 cm long, with several 
closely appressed bracts below the inflorescence. Raceme slen- 
der, about 1 cm long, very densely flowered, about 6 mm 
through prior to development of the capsules. Floral bracts 
equaling the flowers, 2.5 mm long, cuneate at the base, rounded, 
prolonged into a conspicuous aristate tip (cf. P. aristulifera 
Ames). Pedicel and ovary of expanding flowers 2 mm long. 
Lateral sepals about 1 mm long, ovate, forming a mentum 0.5 
mm long. U^iper sepal ovate from a broad base, 1 mm long, 
obtuse, about 1 mm wide. Petals cuneate at the base, roundish, 
obtuse, or rhombic above the base, 1.5 mm long, 0.75 mm wide 
near the tip. Labellum slightly less than 2 mm long, unguicu- 
late, cuneate, dilated, above the middle elliptical or subrhombic, 
rounded, margin entire, about 1 mm wide near the tip. Column 
1 mm long. Pollinia 8. 
Luzon, Bontoc Subprovince, Father M. Vanoverbergh 1115, on trees, 
altitude 1,650 meters, February 21, 1911. 
Here also belongs a series of specimens with leaves 3 dm long by 13 mm 
wide collected in Luzon, Province of Abra, by Maximo Ramos, Bur. ScL 
714-5, altitude about 600 m, February 8, 1909. 
In habit similar, in a very general way, to P. densiflora (BL) Lindl., 
from which it differs in the aristate floral bracts and very slender raceme. 
BULBOPHYLLUM Thou. 
Bulbophyllum lancipetaium sp. nov. 
Pseudobulbi minuti. Folia elliptico-lanceolata, coriacea, acuta, 
prominente 1-nervia. Scapus foliis brevior. Racemus strictus. 
Bracteae inflorescentiae ovariis longiores lanceolatae, acumi- 
natae, acutae. Sepala lateralia triangulari-lanceolata, ad apicem 
aristata. Sepalum dorsale simile, cymbiforme, acuminatum, 
acutum. Petala lineari-lanceolata, obtusa, pubescentia in mar- 
gine. Labellum lingulatum ciliolatum. Columna stelidiis 2. 
Rhizome stout, about 5 mm in diameter. Pseudobulbs small, 
about 1 cm long, pyriform. Leaf elliptic-lanceolate, 12 cm long, 
about 2.5 cm wide, coriaceous, acute, prominently nerved along 
the middle, tapering at base into an elongated petiole. Petiole 
5 to 10 cm long, sulcate, rigid. Scape shorter than the leaves, 
up to 17 cm tall, sheathed by about five, loose, acute bracts 9 
to 13 mm long. Raceme strict, spicate, 6 to 7 cm long, about 
20-flowered. Bracts of the raceme surpassing the ovaries, lan- 
ceolate, acuminate, acute, the largest one about 5 mm long. 
