ORCHIDACE.E 



Racemus gracilis, 5-7.5 cm. longus, apicem folii superans. Brac- 

 tece infiorescentiee ± 2 mm. longas, pedicellum brevem et ovarium 

 multo excedentes. Sepala lateralia lanceolata, acuminata, acuta, 

 subcaudata vel incrassata ad apicem, 2.5 mm. longa. Sepalum 

 dorsale simile, lanceolatum, acuminatum, 1-nervium. Petala li- 

 neari-lanceolata, acuminata, acuta, l-nervia* 2 mm. longa. La- 

 hellum 3-lobatum; lohi laterales membranacei, semicrescenti- 

 formes, rotundati ad apicem, obtusi; lobus medius sagittatus, 

 acutus, 0.75 mm. longus; calli 3, unus ad basim lobi lateralis 

 utriusque, unus in medio partis saccatse labelli. Columna minuta, 

 columnge Dendi^ockili tenelli similis. 



Philippine Islands: Type from Mt. Maquiling, Prov. Laguna, Luzon, 

 January, 1908, H. M. Curran (no. 3077). Specimens in herb. Bui'eau of 

 Science, Manila, and in herb. Ames. 



HeiidrocMlum Curranii suggests in general habit D. tenue 

 (Ames) Pfitz., although the leaves are much broader in pro- 

 portion to their length and the structure of the flowers is very- 

 different. The sepals and petals are strongly involuted near the 

 tips and in the dried state have the appearance of being caudate. 

 When dry, the perianth is whitish, with the tips of the sepals 

 and petals yellow or orange. 



If the inflorescence of D. tenue were to be transferred to the 

 foliage of D. venustulum, the result would in aspect approach 

 the general appearance of D. Curranii. 



[16] 



