Small epiphytic herbs without prominent pseudo- 
bulbs. Leaves coriaceous, oblong to oval, obtuse, very 
short-petiolate, 1-8.5 cm. long, 0.5-1 cm. broad; petiole 
of the mature leaves about 1-2 mm. long. Inflorescence 
racemose, very short, 1-2 cm. long, usually laxly 8-flow- 
ered ; bracts subtending the flowers lanceolate, 2.5—3 mm. 
long. Dorsal sepal lanceolate, acute, minutely serrulate 
on the terminal half, with the dorsal surface obscurely 
papillate, 8-nerved at the base and 1-nerved above, about 
3mm. long and 1—1.5 mm. broad. Lateral sepals triang- 
ular-lanceolate, acute, entire or very obscurely serrulate 
toward the apex, 3-nerved at the base and 1-nerved above, 
about 8.5 mm. long and 1.5 mm. broad. Petals linear- 
lanceolate, acute, 1-nerved, 1.5—-2 mm. long, about 0.5 
mm. broad. Lip oblong-pandurate, about 1.5 mm. long 
and 1 mm. broad, obscurely serrulate toward the apical 
part; lateral lobes more or less distinct, erect; dise with 
two crests which extend from the lateral lobes toward 
the center of the lip. Column short, with two lanceolate, 
acute, terminal stelidia which are about 0.8 mm. long. 
Bulbophyllum calophyllum may be distinguished from 
B. gimagaanense Ames, its closest ally, by the compara- 
tively shorter and broader leaves which are not cuneate 
at the base, by the shorter inflorescence, by the differ- 
ently proportioned lip which lacks ciliations and by minor 
details of the sepals and petals. 
Luzon: Province of Rizal, September 1909, Loher 14649 (Trp 
in Herb. Ames No. 45900; Isoryrr in Herb. Bur. Sci., Manila). 
Bulbophyllum (§. Monanthaparva) caudatum ZL. 
O. Williams sp. nov. 
Herba epiphytica, rhizomatosa. Pseudobulbi cylin- 
draceo-pyriformes. Folium singulum, elliptico-lanceola- 
tum vel anguste elliptico-lanceolatum, acutum vel leviter 
obtusum, obscure mucronatum. Inflorescentia uniflora. 
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