ORCHIDACEiE 



bulbo approximatus,irregulariter arcuatus. Racemus tarde laxis- 

 simus. Bracteae inflorescentiae lanceolatae, acuminatae. Flores 

 parvi, carnosi. Sepala lateralia lanceolato-triangularia, obliqua, 

 concava, complicato-mucronata, mentum saccatum formantia. 

 Sepalum dorsale oblongum, complicato-mucronatum, concavum. 

 Petala lineari-oblonga, acuta vel subacuta. Labellum in positu 

 naturali leviter decurvum, lateribus inferioribus erecto-condu- 

 plicatis, marginibus mediis valde revolutis; lamina expansa an- 

 guste deltoidea, acuta. Gynostemium minutum, brachiis binis 

 triangularibus et pede conspicuo tuberculato praeditum. 



Plant medium-sized. Rhizome about 5 mm. thick, terete, 

 creeping, woody, closely invested by scarious evanescent sheaths, 

 smooth when naked. Roots very numerous, fibrous, flexuous, 

 up to 1 mm. thick. Pseudobulbs very small and inconspicuous, 

 about 2 mm. high, 4 mm. broad below, thick-cylindric, yellow, 

 monophyllous. Leaf about 15.5-21.5 cm. long, 2.4-3.4 cm. broad, 

 narrowly elliptic-oblong, acute with a more or less complicate 

 apex, gradually narrowed to a sulcate petiole, coriaceous, the 

 mid-nerve more or less sulcate above and sharply carinate be- 

 neath, the margins somewhat re volute in the dried specimen. 

 Petiole 8.5-10 cm. long, laterally flattened. Scape approximate 

 to the pseudobulb, usually shorter than the leaf, including the 

 raceme up to 29.5 cm. long, irregularly arcuate, clothed with 

 tubular scarious sheaths which are 1.2-2.5 cm. long, imbricating 

 below and subremote above. Raceme very lax in development. 

 Bracts of the inflorescence up to 5.5 mm. long, lanceolate, acu- 

 minate, concave. Flower small, cellular, fleshy. Lateral sepals 

 about 5-6 mm. long, 3-3.5 mm. wide, lance-triangular, oblique, 

 concave, complicate-mucronate, forming a somewhat saccate 

 mentum, three-nerved. Dorsal sepal about 5.2 mm. long, 2.3 

 mm. wide, oblong, complicate-mucronate, concave, microscopi- 



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