10 



that of the inner leaf. Scape erect from the superior part under the 

 apical end of the pseudbulb, much longer than leaves, slender, terete, 

 smooth, 3^-4^ decim. high including the raceme, 2^-3 mm. in diameter in 

 the lower portion, a basal sheath with marcescent fibres in flowering time, 

 furnished with distantly placed 2 sheaths in the lower portion ; sheath 

 long, tubular, 3J-5 cm. long, close to the scape, glabrous, scarioso-mem- 

 branaceous, longitudinally and loosely nerved, mouth oblique, acutish-obtuse 

 at the apex. Raceme erect, about 10-15 cm. long, shorter than scape, 

 loosely about 7-10-flowered ; rachis slender, straight, glabrous, angular ; 

 bracts small, much shorter than ovary, one for each flower, erect- 

 patent, lanceolate, attenuated above and obtuse at apex, entire, scarioso- 

 meinbranaceous, trinerved, 4-8 mm. long, 2^-2§ mm. broad. Flowers 

 middle-sized, ascending. Perianth half-patent, brownish-yellow. Sepals 

 liuear-spathulate, long and narrowly attenuated below, shortly tapering 

 towards the apex with an obtuse tip, entire, 3-5-nerved, moderately thin, 

 glabrous ; dorsal one 2-2^ cm. long, 2i-3^- mm. wide ; lateral ones scarcely 

 shorter and scarcely narrower than the dorsal one, hardly falcate. Petals 

 shorter and narrower than the sepals, 18-20 mm. long, 2-2i mm. wide, 

 linear-spathulate, very slightly curved, narrowly and gradually attenuated 

 below, subacute, entire, thin on margin, blotched with purple spots, 

 3-nerved, the outer nerves often furcate above. Labellum white, long- 

 unguiculate, ecalcarate ; lamina dilated, subpendulous, thin, glabrous, about 

 €^-8 mm. long, 5i-7 mm. board, contracted and geniculate with the unguis 

 at the base, tripartite, furnished with a tubercle at the base ; tubercle 

 minute, about IJ mm. long, vertically oblong, rugose, rounded-obtuse at the 

 .posterior end and subacute and gradually elevated towards the anterior 

 end ; mid-lobe largest, rhombeo-panduliform, the lower half broadly cuneate 

 with nearly entire margins, the upper half semi-orbicular or broadly ovate, 

 minutely crisped and erose on the margin, hardly emarginate with a 

 mucronate tip in . centre ; nerves 5, lateral ones branching above and disap- 

 pearing before reaching the margin ; lateral lobes much smaller, erect-patent, 

 linear-ligulate, 2i-4 mm. long, -i-| mm. broad, straight or scarcely curved 

 inwards, often somewhat dilated at the base, obtuse, entire, 1-nerved ; 

 unguis straight, longer than the lamina, slightly shorter than the gyno- 

 stemium and nearly parallel to it, 9-10 mm. long, very shortly adherent 

 to both lateral edges of the base of the gynostemium with the basal 

 both margins, slender, lato-linear, entire-margined, involute, with a longi- 

 tudinal ridge internally and a longitudinal groove externally ; nerves parallel, 

 5 in the middle portion, the outer one furcate above and the outer 



