ORCHIDACEiE 



±2.16 cm. long, 5.2 mm. broad, linear-oblanceolate, acute, more 

 or less obtusely cymbiform, indistinctly five-nerved. Dorsal sepal 

 ±2.1 cm. long, 4.77 mm. broad, similar, obtuse, indistinctly five- 

 nerved. Petals ±1.97 cm. long, 3.4 mm. wide, linear, obtuse or 

 unequally subtruncate, very slightly oblique toward the apex, 

 three-nerved at the base. Lip ±2.2 cm. long, 7.6 mm. broad when 

 spread out, in natural position tubular-involute for two-thirds 

 of its length, enwrapping the column, when extended narrowly 

 elliptic, at about one-third the distance from the apex slightly 

 emarginate on each side, thence narrowed to an obtuse, slightly 

 thickened apex. Three approximate low simple keels run from 

 the base to the mid-lobe, the median keel extending almost to 

 the apex. Column slender, about 1.4 cm. long, broadly winged 

 at the apex, wing crenate-undulate. 



This plant is very closely allied to Coelogyne subintegra J. J. 

 Sm., but the vegetative differences are marked. Florally the two 

 plants are especially near, but C subintegi'a has slightly but con- 

 sistently shorter, broader perianth segments. The rigid habit, 

 plicate leaves and column wing of C. rigidiformis are markedly 

 different from the Philippine C. integerrima Ames. 



KiAU, Clemens 71, November 1915. 3000 feet altitude. Flower greenish 

 with purple end on column. 



14. Coelogyne Rochussenii De Vriese 111. Orch. Ind. Ori- 

 ent. Neerl. (1854) t 2; 1. 11, f 6. 



KiAU, Clemens 17 ^, November 1915. 3000 feet altitude. Flowers yellow, 

 the labellum yellow with brown stripes, column white. 



15. Coelogyne Sanderiana Reichh.f. in Gard. Chron. Ill, 1 



(1887) 764. 



KiAU, on bridle path to Koung, Gibhs 3971, February 1910. 2500 feet 

 altitude. Terrestrial in jungle. Flowers white, with the disc of the lip 

 yellow, streaked with brown, fragrant. 



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