ORCHIDACEiE 



60. PACHYSTOMA Bl. 



About six species are known. These are natives of New Guinea, 



Java, and New Caledonia. 



1. Pachystoma pubescens Bl. Bijdr. 376. 



Luzon. 



Also a native of Java. 



61. EULOPHIA R. Br. 



This is a large genus of over one hundred and eighty species, of 

 which sixty-five or more are natives of tropical Africa. In Malaya, 

 Polynesia, Australia, and tropical America there are compara- 

 tively few species. 



1. Eulophia dentata Ames in Phil. Journ. Sci. 6 : 51. E. gra- 

 minea Ames non Lindl. Orchid ace^e 2 : 166. The nearest rela- 

 tive of this species is E. venosa Reichb. f., which is in part dis- 

 tinguished by the two carinas on the disc of the labellum. E. bi- 

 carinata Hook, f., an Indian species, which is a member of the 

 group to which E. dentata belongs, is also characterized by a 

 bicarinate labellum. 



A specimen of Eulophia dentata,w\\\Q\\ I originally referred to 

 E. graminea Lindl. in my list of Philippine orchids in Oiichi- 

 dace^e 2 :166, was sent to me with a note which referred it, per- 

 haps because of the very glutinous substance prepared from its 

 bulbs, to Arethusa glutinosa Blanco. There is no doubt but that 

 Blanco gave special attention to useful plants, and his specific 

 name glutinosa may have been suggested by the use of the plant 

 for gluing boxes, violins, etc. It may be that Blanco's species and 

 E. dentata are conspecific. Naves referred Arethusa glutinosa to 

 Geodorum nutans. Blanco's reference to the use of the glutinous 

 substance prepared from the plant he described is a cause for the 

 suspicion that it includes E. dentata. 

 Luzon. 



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