Whole plant 11-22 cm. high. Khizome short, ascending or erect; 

 roots filiform, with root-hairs. Stem erect, slender, glabrous below the 

 leaves but above them pubescent with patent glandular hairs including the 

 rachis of the raceme, provided with short, adpressed, membranaceous and 

 remotely placed two sheaths at the base. Leaves 2, oppositely approximate, 

 situated in the middle of the whole plant, patent, sessile, ovato-semiorbicu- 

 late, or subreniform-semiorbiculate, abruptly cuspidate at the apex, broadly 

 truncate or truncato-subcordate and in centre very slightly produced at the 

 base, minutely crispulate on the entire margin, glabrous, membranaceous, 

 13-25 mm. long, 10-31 mm. wide; main nerves 3, with a vein Vjetween 

 main nerves and in their outsides ; veinlets loosely anastomosing ; reduced 

 leaves none or only one, squamiform, ova to-subulate, membranaceous, 1- 

 nerved. Raceme erect, loosely 3-9-flowered, 3-5i cm. long ; rachis gracile, 

 often subtlexuous; bracts (Fig. IV. 1.) 

 small, patulous or erect-patent, distinctly 

 shorter than pedicels, ovato- subulate, 

 membranaceous, glabrous, 1 -nerved, 

 1^-5 mm. long. l^lowers small, oliva- 

 ceo-purpurascent ? ; pedicels gracile, 

 erect-patent, glabrous or subpuberulent, 

 3-8 mm. long. Perianth equal in 

 length, obtuse, membranaceous, 1-nerv- 

 ed, 3-4 mm. long. Sepals reflexed ; 

 the superior one {Fig. IV. 2.) oblong- 

 lanceolate ; lateral ones {Fig. IV. 3.) 

 similar, but hardly oblique in form. 

 Petals {Fig. IV. 4.) slightly broader 

 than sepals, oblong. Labellum {Fig. 

 IV. S.) twice as long as the perianth, 

 flabellato-obcordate with ovato-oval or 

 oval-elli[)tical rounded-obtuse often subcrenulate divergent lobes, with a 

 minute depressed-deltoid ])oint in the bottom of open sinus, broadly cuneate 

 below and shortly attenuated at the base, on each side near its base fur- 

 nished with a small (1^-1-imm. long.) obovato-elliptical or subspathulato- 

 oblong obtuse tooth (turned upwards and parallel to the column), 5-6^ mm. 

 long, 4^-G mm. broad, flabellately veined, the median nerve thicker. 

 Column 2-2,^ mm. long, straight; clinandrium deeply concave, the dorsal 

 edge thin and i)auci-crenul ite ; anther lato ovate, obtuse; rostellum broad; 

 stigiua roundioh. Ovary obuvoid or obovoid-oblong, gUbrous, 2-3 mm. long. 



IV xo 



