ORCHIDACE.E 



Ames and Eulophia squalida Lindl. that extend over a wide 

 range, but the majority of orchids, if conclusions based on present 

 knowledge are to be relied on, are held within comparatively 

 small geographical areas and are restrained in their distribution 

 by influences of which we have little or no understanding. This 

 lesson is easily learned from a study of those Philippine species 

 that seem to be localized on an island or within a province. 



In the following list the genera are arranged, with a few ex- 

 ceptions, in the sequence adopted in the fifth fascicle of Orchi- 

 daceae. This arrangement follows closely the system proposed 

 by Engler and Prantl. 



HABENARIA JVilld. 



Habenaria malintana {Blanco) Merrill Sp. Blancoanae 

 (1918) 112. Thelymitra malintana Blanco Flora de Filipinas 

 (1837) 642. Habenaria pelorioides Par. 8^ Reichb.f. in Trans. 

 Linn. Soc. 30 (1874) 135, 139, t. 27, f. A, 1-3. Habenaria tri- 

 nervis Naves Novis. App. (1880) 250 non Wight. 



If Professor Elmer D. Merrill's conclusions are adopted, the 

 synonymy given above would seem to be correct for the Philip- 

 pine plant that has been referred to Habenaria pelojioides Par. 

 & Reichb. f. in my previous lists of Philippine orchids. Merrill, 

 with exceptional opportunities for exactitude and finality, has 

 given concentrated attention to the task of clarifying obscure 

 species described by Blanco, so that his conclusions must be re- 

 garded as authoritative. Aside from the very rambling descrip- 

 tion published in Flora de Filipinas, there are references that, 

 once the clue to the species is given, seem to leave little, if any, 

 room for doubt as to the plant Blanco wished to characterize. 

 In the Novissima Appendix Naves referred Thelymitra maliu' 

 tana to the synonymy of Habenaria trinervia Wight, but on 



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