PHILIPPINE ORCHIDS. 
135 
yellow. Lateral sepals triangular-lanceolate, subcaudate, 7 mm 
long. Upper sepal lanceolate, about 5 mm long, concave. Petals 
spathulate, obtuse, 1-nerved, 2.5 mm long. Labellum lingulate, 
3-nerved, 2.5 mm long. Column minute, shortly bicuspidate. 
Luzon, Province of Zambales, December 13, 1907, Maximo Ramos, Bur. 
Sci. i996. 
The type of this species is composed of a single specimen in the 
Herbarium of the Bureau of Science and of a fragment preserved in my 
own herbarium. The elongated rhizome is very characteristic. The label- 
lum of the flowers examined lacked the conspicuous tubercles or callosities 
at the base, which are usual in flowers of this group. 
§ MONANTHAPARVA. 
Bulbophyilum bontocense sp. nov. 
Rhizoma elongatum, repens, gracile, ad nodos radicans. Rad- 
ices crassae. Pseudobulbi pyriformi, rugosi, paiwi. Folia 
brevissime petiolata, coriacea, elliptica vel ovata, ad apicem 
aristata. Scapus foliis longior ortus a basi pseudobulbi vel a 
rhizomate; ad basim vaginis tubularibus bracteiformibus ; sub 
florem solitarium bractea tubularis. Sepala lateralia triangulari- 
lanceolata, longe caudata, 3-nervia. Sepalum superius simile. 
Petala variabilis, 1-nervia, oblonga, ad apicem irregulariter 
retusa, mucronata vel marginibus inaequaliter dentatis. Label- 
lum 3-lobatum, unguiculatum, 3-nervium, lobis lateralibus erectis, 
lanceolatum ab medio, obtusum vel subacutum, pars inferior 
explanata orbicularis, pars anterior crassa. 
Rhizome creeping, elongated, slender. Pseudobulbs 2 to 3 
cm apart, pyriform, rugose, monophyllous, 4 to 6 mm long. 
Leaves coriaceous, elliptic or ovate, setigerous at the tip, 7 to 
12 mm long, 5 to 7 mm wide. Scape slender, longer than the 
leaves, 1 to 3 cm long, arising from the base of the pseudobulbs 
and from the rhizome about midway between the pseudobulbs, 
bracteate at base, unibracteate at the base of the solitary white 
flower, persistent. Lateral sepals triangular-lanceolate, acumi- 
nate, caudate-tipped, 3-nerved, up to 8 mm long. Upper sepal 
similar to the laterals. Petals variable, 1-nerved, 3 mm long, 
1 mm wide, oblong, somewhat cuneate at the base, apex mucro- 
nate or irregularly dentate, the apex exhibiting both conditions 
in the same flower. Labellum 3-Iobed, 2 mm long. Lateral 
lobes semiorbicular, erect, when spread out giving to the basal 
portion of the labellum an orbicular aspect, middle lobe lanceo- 
late, fleshy, acute, 1.5 mm long. Column 1.5 mm long. 
Luzon, Bontoc Subprovince, August 17, 1911, Father M. Vanoverhergh 
1382. Growing on trees, altitude 1,650 meters above sea-level. 
