ORCHIDACEtE 



callo carnoso hippocrepiformi contracta, parte anteriore late ro- 

 tundata, reflexa. Gynostemium rostello semiorbiculari dentato 

 et pede unciformi praeditum. 



Plant slender. Stems suberect, complanate, entirely concealed 

 by leaf sheaths, rarely provided with a lateral branch above. 

 Leaf sheaths loose, thin, striate-nervose. Leaves distichous, 

 ±9 cm. long, 7 mm. wide below the middle, lance-linear, widely 

 spreading, acuminate to the apex which terminates in a pair 

 of sharp narrow unequal teeth with a shorter mucro between, 

 rounded and clasping at the base, many-nerved with three nerves 

 rather conspicuous beneath, chartaceous, at intervals of ±1.5 cm. 

 Inflorescences ±5 cm. long, always terminal and sometimes also 

 lateral, puncturing the leaf sheaths toward the upper part of the 

 stem, simple or occasionally two-forked. Peduncle nodding or re- 

 flexed-arcuate, thickly invested by scarious, tubular, imbricat- 

 ing sheaths below. Bracts of the inflorescence about 4 mm. long 

 (the lower longer), oblong to narrowly lanceolate, more or less 

 acute, concave, nervose, reflexed-spreading in course of develop- 

 ment. Flowers rather small. Lateral sepals about 3 mm. long 

 and about as wide, broadly triangular, very obhque, rounded at 

 the apex, forming a deep saccate mentum, three-nerved, with all 

 the nerves (especially the mid-nerve) bluntly carinate the keels 

 not reaching the apex. Dorsal sepal about 3.4 mm. long, 1.8 mm. 

 broad, ovate-elhptic, rounded at the apex, very strongly concave, 

 three-nerved. Petals about 2.8 mm. long, 1 mm. wide above, 

 oblanceolate, rounded or obtuse at the apex, one-nerved. Lip 

 about 3-3.5 mm. long, spatulate-obovate in natural position; 

 lower half contracted by a fleshy callus, anterior part dilated 

 into a reflexed, broadly rounded limb, which is very slightly re- 

 tuse with a minute tubercular callus in the center of the apex ; 

 expanded limb about as broad as long; a stout fleshy hippocrep- 



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