ORCHID ACEiE HALCONENSES. 
333 
BULBOPHYLLUM Thouars. 
Bulbophyllum adenopetalum Lindl. Bot. Reg. 1842, Mise. p. 85. 
Epiphyte at 3,550 ft. alt. on Mount Haleon, flowers odorless, nearly white, 
slightly straw-colored, Nov. 10, 1906, Merrill (No. 5684). 
The petals of the specimens collected by Mr. Merrill are rather lanceolate and 
acute than spathulate as in Lindley's colored sketch of the Singapore plants on 
which is based the description of B. adenopetalum. The Mount Haleon specimens 
agree very well in habit with Cuming’s Philippine specimens in Lindley’s Her- 
barium determined as B. adenopetalum by Lindley. Unfortunately I have no 
record of the shape of the petals of Lindley’s specimens aside from a copy of his 
drawing of the Singapore plant which he received from Messrs. Loddiges in 1842. 
This drawing shows a flower very similar to that of the specimens in question, 
if the petals are excepted. Notwithstanding the discrepancy that exists between 
the petals of Lindley’s drawing and the Mount Haleon plant I refer the material 
collected by Mr. Merrill to B. adenopetalum. 
B. adenopetalum belongs to a section of Bulbophyllum which appears to be 
very well represented in the Philippines, mainly characterized by the absence 
of well-developed pseudobulbs. This section is in great need of careful study 
and revision. To it belongs B. dasypetalum Rolfe. 
Singapore and the Philippines. 
Bulbophyllum (§ Monanthaparva) alagense Ames sp. nov. 
Rhizome creeping, slender. Pseudobulbs approximate to each other 
or sometimes 2 cm. apart, pyriform, 4-6 mm. long, narrowed above, 3-4 
mm. in diameter at base. Leaves ovate, apiculate, 1.2-2 cm. long, 4-9 
mm. wide. Apicule 0.75 mm. long, awn-like. Scape very slender, 
filiform, exceeding the pseudobulbs, 8-11 mm. long, sheathed at base 
by a tubular, truncate, 1-2 mm. long bract. Flower solitary, pale yellow, 
nearly white. Pedicel slender, graceful, subtended by a loose, tubular, 
obliquely truncate, apiculate, 2 mm. long bract, which is dilated above. 
Sepals triangular-lanceolate, 5-7 mm. long, caudate-tipped, the tails 
about 4 mm. long. Petals minute, about 2 mm. long, spathulate, acute. 
Labellum about 1.5 mm. long, strongly curved, 3-lobed ; lateral lobes 
erect, half-round, when spread out forming an orbicular plate, 1 mm. 
long, 1 mm. wide; middle lobe fleshy, oblong, obtuse, about 1 mm. long. 
Column minute with blunt wings. 
On mossy branches overhanging the water along the Alag River, at 1,250 ft. 
alt., Nov. 12, 1906, Merrill (No. 5494). 
Bulbophyllum dasypetalum Rolfe in Ames Orchidaceae, fasc. 1, p. 98, with fig. 
(1905). 
Epiphyte at 3,550 ft. alt. on Mount Haleon, flowers odorless, pale yellow, Nov. 
10, 1906, Merrill (No. 5649). — Same locality, Nov. 15, 1906, Merrill (No. 6129). — 
Same locality. on exposed ridge at 4,500 ft. alt., Nov. 14, 1906, Merrill (No. 5719). 
Type from Mount Mariveles, Province of Bataan, Luzon. 
