38 



ORCHIDACEM 



Tubers about 15 mm. long. Roots fleshy. Leaves 2, near 

 the base of the stem, rarely equal, one ovate-cordate, acuminate, 

 3-4.5 cm. long by 2.4 cm. wide, the other lanceolate-cordate, 

 2-3 cm. long by 1.2 cm. wide. Scape 10-15 cm. long, slender, 

 erect, 4-7-bracteate. Bracts linear-lanceolate, acuminate, acute, 

 up to 1.5 cm. long. Raceme 3.5-10 cm. long, loosely 7-20-flow- 

 ered. Flowers white. Lateral sepals ovate, 6 mm. long. Upper 

 sepal similar, strongly concave, 5 mm. long. Petals cohering to 

 the upper sepal, linear-oblong, one-nerved, obtuse, 5 mm. in length. 

 Labellum trifid, divisions filiform, the lateral divisions 8 mm. long, 

 longer than the middle division ; middle division broader than the 



lateral ones, about 6-7 mm. long. 



Spur clavate, 10-12 mm. long. 



Prov. Rizal, Luzon, August 25, 

 1905, Ahern's collector (no. 3241). 



Bengal, the Malabar and Konkan 

 Coasts, western Himalayas. 



H. (§ PeristyloideaB) CONGESTA 

 sp. nov. Aff. H. Rumphii Lindl. 

 Tuber a circa 1 cm. longa. Herba 

 tota gracilis, ±2-3 dm. alta. Folia 

 linearia, graminea, 11 cm. longa, 

 7 mm. lata, acuta, in bracteas trans- 

 euntia. Bracteaz aliquanto minu- 

 entes, illae inflorescentise ovaria lon- 

 gitudine excedentes. Flores albi, in 

 racemo denso cylindraceo, vel spica, 

 congesti. Sepala lateralia semi- 

 ovata, acuta, 4 mm. longa. Sepalum 

 dor sale ovatum, 3.5 mm. longum. 

 Petala falcata, simplicia, sepalo dor- 

 sali breviora. Labellum tripartitum ; 



laciniae laterales lineares, 4 mm. longae; media latior, 6 mm. longa. 



Calcar ovario brevius, 7 mm. longum, ad apicem inflatum. 



HABENARIA CONGESTA 



