ORCHIDACE.E 



larger, more robust species. The caulescent habit, footless col- 

 umn, and general aspect suggest Octarrhena. Although through 

 its caulescent habit quite distinct from them, O. gemmifera re- 

 sembles Phreatia secunda Lindl. and P. brachystachys Schltr. 

 It is among the smallest species of either Octarrhena or Phrea- 

 tia, and much smaller than any of the specimens of P. secunda or 

 P. brachystachys I have examined. 



Leyte, Jaro, C.J. Wenzel 0293, March 8, 1914. Epiphyte in forest. Alti- 

 tude 500 meters. Sepals and petals flesh-color (pinkish). Labellum purple. 



67. THELASIS Bl. 



Five Philippine species have been recognized. Thelasis is made 

 up of two distinct sections, Euphroboscis and Oxyanthera, which 

 are separated by vegetative characters. § Euphroboscis includes 

 those species which have a conspicuous pseudobulb and a fleshy 

 leaf. § Oxyanthera has a flattened pseudobulbous stem which is 

 concealed by the equitant spreading leaves. Dr. Schlechter up- 

 holds § Oxyanthera as a distinct genus. Twenty or more species 

 of Thelasis have been described. 



1. Thelasis (§ Euphroboscis) capitata Bl. Bijdr. 386. 



MlNDORO. 



2. Thelasis (§ Oxyanthera) carinata Bl. Bijdr. 386. 



Mindoro, Camiguin, Mindanao, Leyte, Basilan, Negros, Luzon, 

 Batanes Islands. 



3. Thelasis (§ Euphroboscis) elongata Bl. Orch. Arch. Ind. 23, 

 t. 7, fig. 2, t. 5, f. 



Mindanao, Leyte, Polillo, Sulu. 



4. Thelasis (§ Oxyanthera) micrantha J. J. Smith Orch. Jav. 

 495. 



Leyte, Luzon, Mindanao. 



5. Thelasis (§ Euphroboscis) obtusa Bl. Bijdr. 386. 



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