ORCHIDACE^ 



thium late patens. Sepala anguste lanceolato-attenuata, apicibus 

 caudatis. Petala miiiuta, ovata, obtusa vel acuta. Labellum per- 

 parvum, valde decurvum, marginibus inferioribus erecto-con- 

 duplicatis, expansum suborbiculare, obtusum, parte anteriore 

 callo carnoso praedita. Gynostemium brachiis binis brevibus tri- 

 angularibus at pede arcuato instructum. 



Plant tall, robust. Rhizome stout, creeping, woody, about 

 7 mm. thick, concealed by densely imbricating broadly triangu- 

 lar-ovate carinate mucronate sheaths. Roots numerous, stout, 

 fibrous, subrigid, branching, ±2 mm. thick. Pseudobulbs very 

 small, about 5 mm. high, up to 8 mm. wide, monophyllous, 

 concealed by the sheaths. Leaf about 23.5-28.5 cm. long, 6.4- 

 7.7 cm. wide, oblong-elliptic, apex appearing acute in the 

 dried specimen but in reality complicate and obtuse, gradually 

 narrowed to a sulcate petiole, very thick and coriaceous, many- 

 nerved with the mid-nerve strongly sulcate above and sharply 

 carinate beneath, the margins more or less revolute. Petiole 

 about 11-14 cm. long, very stout, deeply channeled, clothed 

 below with several triangular-ovate to tubular, loose, rigid, car- 

 inate sheaths. Scape ±56 cm. long, surpassing the leaves, erect 

 or nearly so, clothed for about 26-28 cm. (nearly or quite up to 

 the inflorescence) with strict, infundibuliform sheaths that are 

 imbricating below and free above. Rachis striate, glabrous. Bracts 

 of the raceme up to 1.5 cm. long, spreading, tubular-involute, 

 lance-attenuate. Raceme rather dense. Flowers with widely 

 spreading segments, fleshy, cellular-pellucid in the dried speci- 

 men. Lateral sepals about 1.1 cm. long, 2.5 mm. wide at the 

 base, lance-attenuate with long caudate apices which are pro- 

 duced by the involute margins, forming a slightly saccate men- 

 turn. Dorsal sepal very similar, about 1 cm. long, 2 mm. wide 

 below. Petals minute, about 1.7 mm. long, 1.15 mm. broad, 



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