ORCHIDACE.E 



basim callus bilobus stat. Columna crassa, basi in pedum brevem 

 producta. 



The free portion of the upper sepal and petals is about 3 mm. 

 long. The obtuse petals are 3. 5 mm. wide. From base of column to 

 the tip of the middle lobe, the labellum is about 4.5 mm. long. 

 The keel, which extends from the tip of the middle lobe to about 

 the middle of the disc, is only slightly elevated. The callus near 

 the base of the labellum is fleshy and distinctly two-lobed. 



Didymopleccis philippinensis is very distinct from D. pallens, 

 the only other Philippine species, in having a three-lobed label- 

 lum. 



The three-lobed labellum of D. philippinensis is an interesting 



development. Dr. Schlechter has described two species from New 



Guinea which also have the labellum three-lobed. 



Luzon, Camarines Province, Mount Isarog, M. Ramos Bur. Sci. 22083, 

 December 7, 1913. Altitude 54 meters. Leyte, Jaro, C.J. Wenzel 0362, 

 March 17, 1904. Sepals brown, petals brown and white, labellum white and 

 yellow. Mr. Wenzel's specimen is more slender than the tvpe and about 

 3 dm. tall. 



17. GASTRODIA R. Br. 



About fifteen species have been described. The genus is repre- 

 sented in Formosa, Ceylon, Java, Australia, New Guinea, Suma- 

 tra, Japan, China, Tibet, New Zealand, and the Himalayas. (Cf. 

 Engler's Bot. Jahrb. 45 : 409.) 



1. Gastrodia javanica Lindl. Gen. & Sp. Orch. 384. Epiphanes 

 javanica Bl. Bijdr. 421. 



Leyte, Palawan. 

 Also from Java. 



18. SPIRANTHES L. C. Rick. 



Spiranthes is represented in both hemispheres. Probably one 



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