ORCHIDACE^E 



lateralia e basi triangula, subfalcata, acuminata, acuta, mentum 

 conicum curvulum, obtusum formantia, 6 mm. longa. Sepalum 

 dorsale lanceolatum, acutum, concaviusculum, 5 mm. longum. 

 Petala linearia, acuta, trinervia, 6 mm. longa, circiter .5 mm. lata. 

 Labellum 7 mm. longum brevi-unguiculatum, deinde cunea- 

 tum, trilobum, lobi laterales rotundati, circiter 2 mm. lati, leviter 

 crenulati; lobus medius triangularis, 2.5 mm. longus, 2.5 mm. 

 latus, subacutus. Mentum 3-4 mm. longum. In disco labelli linea 

 elevata, sulcata, a basi ipsa medium labelli usque decurrens ibi- 

 que in processus setiformes mutans. 



Dendrobium ley tense in general habit resembles D. piesto- 

 caulonSchltv., from which it differs in its broader leaves and more 

 strongly complanate stems. The labellum is not at all fleshy, or 

 thickened at the tip, in dried specimens. Besides the type I have 

 examined many specimens collected by Wenzel (0415) in Leyte, 

 which bear flowers 1 cm. long with lips 9 mm. long. From the 

 material at hand the sepals and petals appear to have been yel- 

 lowish, the labellum tinged with pale purple. 



Leyte, Dagami, C. A. Wenzel 082, January 15, 1913. On trees at great 

 height. Altitude 60 meters above sea level. Flowers greenish-yellow and 

 pink. 



37. Dendrobium longicolle Lindl. in Bot. Reg. (1840) Misc. 74. 

 This species has been ascribed to the Philippines, but not with 

 surety. Cf. D. Clemensice. 



38. Dendrobium lunatum Lindl. in Journ. Linn. Soc. 3 : 4. 

 Palawan. 



39. Dendrobium luzonense Lindl. in Bot. Reg. (1844) Misc. 54. 

 D. alagense Ames in Phil. Journ. Sci. 2 : 328. 



Mindanao, Mindoro, Leyte, Luzon. 



40. Dendrobium Lyonii Ames Orchidace^e 2:177. 



Luzon. 



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