208 The Philippine Journal of Science 1932 
triangular-lanceolate, acutely acuminate, 2 to 2.5 cm long, 7 
to 8 mm wide, dorsally carinate, 9-nerved. Dorsal sepal erect, 
oblong-lanceolate, acutely acuminate, about the same size as the 
sepals, 7- to 9-nerved. Petals very small, 1-nerved, ovate-sub¬ 
quadrate, about 2 mm long without the cusp, about 3 mm wide 
near the base, the upper half pectinate, the middle nerve pro¬ 
longed into a long cusp about 1.7 mm long, pale chalcedony yel-* 
low, with three patches of Hay’s maroon near the base. Label- 
lum reflexed near the base, maroon, mobile, attached by a minute 
claw to the foot of the column, fleshy, entire, tongue-shaped, 
about 2 cm long, the very tip acuminate; the basal portion 
dilated into a pair of erect auricles terminated on each side by 
an uncinate lobule, in the groove between the auricles runs a 
pair of approximate converging keels, the upper portion keeled, 
convex, tumid-rugulose. Column very short, stout, straw yel¬ 
low, terminating in a pair of spreading, subquadrate, apically 
bilobed arms of which the posterior lobe is short-triangular and 
the anterior lobe is subulate and about 1.5 mm long; clinandrium 
excavated, transversely elliptic; rostellum wanting, the foot at 
right angles to the column, about 7 mm long; anther semiorbi- 
cular, about 1.5 mm long, naphthalene yellow with a median 
maroon spot. 
Luzon, Tayabas Province, Atimonan, Bur. Sci. 80829 Quisum- 
bing, April 6, 1930. The specimens were collected from the 
Quezon National Park, across the road from Gate No. 2 cottage, 
growing on a dead, standing tree trunk. 
This species, which was originally collected from Riouw 
(Rhio), Borneo, and later reported also from the Malay Penin¬ 
sula (Perak, Waterloo and Tahan), is new to the Philippines. 
Bulbophyllum cleistogamum Ridl. is distinct from any Phil¬ 
ippine Bulbophyllum by its greatly elongated, slender peduncles 
and the structure of its flowers, particularly of the labellum, 
petals, and sepals. The peduncles, indeed, are much more elon¬ 
gated than those previously described. 
As Carr 4 points out the designation cleistogamum is rather a 
misnomer, for the flowers are usually widely expanded. 
BULBOPHYLLUM MAQUILINGENSE sp. nov. Plates 3 and 10. 
Herba epiphytica. Radices fibratae, glabrae. Rhizoma re¬ 
pens. Pseudobulbi conferti, suberecti, ovoidei vel oblongo-ovoi- 
dei, 9 ad 16 mm longi, 6 ad 10 mm in diametro, monophylli. 
Folium ellipticum vel elliptico-oblongum, obtusum, subcoriaceum, 
* Gard. Bull. Straits Settlements 5 (1930) 139. 
