1904.] 



OBSERVATIONS ON THE FLORA OI< JAtAS. 23 



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

 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, searioso- 

 membranaceous, trinerved, 4-8 mm. long, 2i-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 2-2J cm. long, 2|-31 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, 2-21 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 

 61-8 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 11 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 

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

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

 linear-ligulate, 21-4 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 gynosternium 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 

 branch running to the lateral lobes of the lamina. Gynostemiutn slightly 

 coherent to the base of petals at the base, 11-14 mm. long, slightly 

 arcuate, nearly erect, subterete, narrowly elongate, apterous, somewhat 

 clavate above, smooth, shallowly canaliculate in front; clinandrium flat, 

 scarcely triangular-subsemiorbicular, bordered with elevated and slightly crispate 

 margin except in front, with a longitudinal prominent ridge in centre ; 



