ORCHIDACE^ 



teae inflorescentiae breviores, reflexae. Flores in visu pellucidi; 

 sepala apice late rotundata, trinervia, marginibus anterioribus 

 revolutis. Sepala lateralia lanceolato-ovata. Sepalum dorsale 

 lanceolato-oblongum. Petala linearia, apice truneata vel paulo 

 emarginata, uninervia. Labellum in circuitu subquadratum, au- 

 riculis basilaribus praeditum; lamina trilobata, basi eallo parvo 

 transverse ornata; lobi laterales obtuse atque latissime trian- 

 gulares; lobus medius semiorbicularis, bilobatus, porrectus, 

 utrinque dente parvo oblongo obtuso praeditus; auriculae del- 

 toideae, parallelae vel paulum diversae. Gynostemium crassum, 

 bialatum. 



Rhizome creeping, woody, flexuous, concealed by sheaths 

 vv^hich tardily become fibrous, striate-sulcate in the dried speci- 

 men. Stem about 5 cm. long, decumbent, entirely concealed by 

 the loose, tubular leaf sheaths. Leaves up to 5 cm. long, 1.7 cm. 

 broad, four to eight on each shoot, more or less approximate, 

 elliptic, obtuse, mucronate, rounded or cuneate below, almost 

 sessile on the leaf sheath, dorsally carinate, crisped on the mar- 

 gins, membranaceous in the dried condition. Peduncle with the 

 raceme about 42 cm. long, suberect, slender, with remote rarely 

 subopposite bracts. Bracts of peduncle ±6 mm. long, subulate, 

 reflexed. Rachis about 16.5 cm. in height, nodding near the 

 apex, many-flowered. Floral bracts up to 4 mm. long, linear- 

 attenuate from a broad base, sulcate, thin, reflexed. Flower ap- 

 parently pellucid. Sepals broadly rounded at the apex, three- 

 nerved, with the anterior margins re volute. Lateral sepals about 

 2.7 mm. long, 1.5 mm. wide below the middle, lance-ovate. 

 Dorsal sepal about 3 mm. long, 1.2 mm. broad at the base, 

 lance-oblong. Petals about 2.5 mm. long, .65 mm. broad above, 

 linear, slightly broader near the apex, truncate or slightly retuse 

 at the tip, margins revolute, one-nerved. Lip subquadrate in 



[74] 



