ORCHIDACEiE 



wide at the base, thick -cylindric, rugose in the dried specimen, 

 monophyllous, entirely concealed by the fibrous remnants of 

 sheaths. Leaf about 13 cm. long, 4.4 cm. wide in the middle, 

 elliptic, obtuse, cuneate-narrowed to the petiole, subcoriaceous, 

 the mid-vein indistinctly sulcate above and strongly carinate 

 beneath. Petiole about 3 cm. long, sulcate. Scape approximate 

 to the pseudobulb, about 15 cm. long, arcuate-flexuous, striate 

 in the dried specimen, provided with several tubular, scarious 

 sheaths that are short and imbricated at the base, free to subre- 

 mote above. Raceme loosely flowered. Bracts of the inflorescence 

 about 6-7 mm. long, lanceolate, long acuminate, scarious, equal- 

 ing or surpassing the pedicellate ovary. Flower pellucid in the 

 dried specimen. Lateral sepals about 1.2 cm. long, 6 mm. wide, 

 very broadly triangular below, oblique, three-nerved, forming a 

 deeply saccate mentum, terminating above in an abrupt long 

 cellular cauda which is about 6-7 mm. long. Dorsal sepal about 

 1 cm. long, 2.45 mm. wide at the base, lanceolate, terminating 

 in an abrupt cellular cauda which is about 5 mm. long, one- 

 nerved. Petals much smaller, about 4 mm. long, 1.2 mm. wide, 

 linear, acute, one-nerved. Lip in natural position strongly de- 

 curved with the margins conspicuously revolute, when expanded 

 about 3.75 mm. long from base to apex or 4.6 mm. long includ- 

 ing the semi-orbicular basal auricles, 3.8 mm. broad near the 

 base, cordate, obtuse, provided at the base with a pair of small 

 approximate calli, three-nerved with the mid-nerve very prom- 

 inent, the apical portion microscopically papillose. Column short, 

 stout, about 2 mm. high, provided above with a pair of parallel 

 subulate arms and below with a long foot which is unciform at 

 the apex. Anther shallowly hemispherical, glabrous. 



There are several allies of this plant, the nearest Bulbophyl- 

 lum leptosepalum Hook, f., which has much narrower leaves, 



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