100 



ORCB.IDACEM 



lineari-oblongus, acutus. Columna subcrassa, utroque ad apicem 

 ala rotundata. 



D. hastatum is clearly distinguished by its fleshy hastate label- 

 lum from all other species of the genus known from the Philip- 

 pine Islands. It would seem to form a distinct section of this very 

 comprehensive genus. 



Mt. Halcon, Mindoro, June 15-27, 1906, M. C. Merritt (no. 

 4441). — Terrestrial and on base of trees, fls. pale purplish, 

 alt. 6800 ft., Mt. Halcon, November 15, 1906, E. D. Merrill (no. 

 5759). 



23. D. WHITFORDII (Rolfe) comb. nov. — Acoridium Whit- 

 fordii Rolfe ex Ames Orchid ace^e fasc. 1, 73 (1905). 



Pseudobidbs narrowly ovoid, 1-1.5 

 cm. long, approximate. Leaves linear- 

 lanceolate, apiculate, prominently 3- 

 nerved, petiolate, 5-11.5 cm. long, 

 7-8 mm. wide. Peduncles below ra- 

 ceme shorter than the leaves, 4-9 cm. 

 long, with several imbricating bracts 

 at the base of the inflorescence. Ra- 

 ceme 1.5-5.5 cm. long, 7 mm. through. 

 Bracts somewhat exceeding the ova- 

 ries, 2.5 mm. long. Flowers fleshy, 

 2.5 mm. apart. Lateral sepals ovate, 

 acute, 3-nerved, 2 mm. long, slightly 

 less than 2 mm. wide. Upper sepal 

 similar to the laterals, obtuse, nar- 

 rower. Petals rhombic or broadly 

 cuneate-ovate, 2 mm. long, 2 mm. 

 wide, 3-nerved. Labellum fleshy, 1.5 

 mm. long, 1 mm. wide, oblong, ob- 

 scurely auriculate at the base, with a triangular cusp or tooth at 

 the apex ; near the base a small crescentiform plate or callus, the 



Dendrochilum Whitfordii 



