138 AMES. 
obtusa, 1-nervia. Labellum lanceolatum, obtusum, 3-nervium. 
Columna minuta. 
Rhizome much branched, clothed with imbricating, scarious 
bracts from among which the numerous 1-flowered scapes arise, 
crowding the space between the widely separated pseudobulbs. 
Pseudobulbs about 2 cm apart, 5 mm long, 2 mm thick, closely 
appressed to the rhizome, rugose and angled when dry, cylin- 
draceous, truncate, bearing at the summit a solitary, fleshy, 
elliptic-oblong leaf. Leaves shortly petiolate, 2.2 to 5 cm long, 
about 1 cm wide, yellowish-green in dried specimens, retuse at 
the rounded tip. Flowers about 6 mm long, yellowish, borne 
singly on very short, slender scapes, the scapes almost entirely 
concealed by the bracts of the rhizome. Subtending each flower 
there is an infundibuliform, acuminate-tipped, hyaline bract 
which partly conceals the ovary. Lateral sepals linear-trian- 
gular, caudate-tipped, 6 mm long. Upper sepal similar to the 
laterals. Petals elliptic or ovate, obtuse, much shorter than^the 
sepals, 1.75 to 2 mm long, 0.75 mm wide. Labellum lanceolate, 
more fleshy than the other perianth divisions, about 1.5 mm 
long, 3-nerved, smooth. 
Luzon, Province of Rizal, Mount Canumay, October 15, 1911, Maximo 
Ramos, Bur. Set, 13785, epiphytic: Province of Cagayan, April 20, 1909, 
Ramos, Bur. Sci, 7971, 
B. profusum resembles the Celebesian B. myrianthum Schltr. so closely 
that the slight differences between them, observable when specimens are- 
laid side by side, may be considered too trivial for recognition as valid 
specific characters. In B. myrianthum the leaves are ovate or suborbicular 
and, in the specimens I have examined, do not exceed 2.5 cm in length. 
In B. profusum f however, the leaves average more than 2.5 cm in length 
and are rather oblong-elliptic than ovate or suborbicular. In B. profusum 
the labellum is broader than in B. myrianthurri, very obtuse, and broader 
in proportion to its length. The sepals of B, profusum are narrower in 
proportion to their length than those of B. myrianthum. Both species are 
near relatives of the Javan B. sessile J. J. Smith {B. clandestinum Lindl.) 
which is rather widely distributed, having been reported from Borneo, 
the Malay Peninsula, Singapore, and Tenasserim. An examination of 
additional material may show that B, myrianthum and B. profusum are 
referable to B. sessile and that the differences now relied on for differentia- 
tion are of slight importance. 
§ CIRRHOPETALUM. 
Bulbophyllum antenniferum (Lindl.) Reichb. f. in Walp. Ann. Bot. Syst. 
6 (1860) 245. 
Cirrhopetalum antenniferum Lindl. Bot. Reg. 29 (1843) sub. t. J^9. 
The type specimen of Cirrhopetalum antenniferum in Lindley's Her- 
barium at Kew consists of a solitary flower. There are no leaves and 
no pseudobulbs. Lindley's description of the flower is incomplete, no 
