ORCHIDACEM 



85 



sepalorum lateralium explanatorum. Bractece subovatse vel ob- 

 longa3,truncata3,ad basim dilatatae,3 mm. longae. Sepala lateralia 

 oblongi-lanceolata,3-nervia, 3.5 mm. 

 longa, 1.75 mm. lata. Sepalum dor- 

 sale elliptico-oblongum, obtusum, 

 3.5 mm. Ionium. Petala cuneato- 

 ovata, vel rhombico-ovata, obtusa, 

 3 mm. longa, 2.5 mm. lata, 3-nervia. 

 Labellum circa 1 mm. longum, 3- 

 lobatum, 3-callosum ; lobi equilongi ; 

 lobi laterales oblongi, obtusi ; lobus 

 medius late triangularis, vix 1 mm. 

 longus. Columna minuta, columnae 

 Dendrochili tenelli similis. 



In habit D. exile is a connecting 

 link between D. graminifolium and 

 JD. tenuifolium. Although I have 

 examined all available material, I 

 cannot discover that the peduncle 

 of this species adheres to the face of 

 the leaf as in D. graminifolium. In 

 the labellum D. exile is widely dif- 

 ferent from all other linear-leaved 

 species of the genus. 



Epiphyte, alt. 6800 ft., Mt. Hal- 

 con, Mindoro, November 15, 1906, 

 E. JD. Merrill (no. 5721). 



7. D. TENUIFOLIUM Ames 

 supra, p. 12, t. 21. — Aeoridium 

 tenuifolium Ames Proc. Biol. Soc. 

 Wash. 19: 145 (1906). 



Dendrochilum exile 



Pseudobulbs fusiform, slender, 

 1.5—2.5 cm. long, monophyllous. Leaves linear, acute, with a 



