ORCHIDACE.E 



related, differing from E. Merrillii in only slight details, on the 

 sum of which I rely for specific distinction. Unfortunately 22. Ver- 

 steegii is known to me only through the original description and 

 the very clear figure in Nova Guinea (8 : 25, t. 9, fig. 25). An- 

 other close ally of E. Merrillii is E. bicarinata Hook. f. This is 

 an Indian species, which is known to me through several spe- 

 cimens received from the Botanical Department of Northern 

 India. The flowers are much larger than in E. Merrillii (labellum 

 1.7 cm. long in a specimen before me) and the racemes much 

 more densely flowered. E. Versteegii appears to be intermediate 

 between the Indian and the Philippine species in the size of the 

 flowers. It may be found that E. papuana, E. Versteegii, E. bi- 

 carinata, E. Merrillii, and several other closely related species, 

 which have been referred to the synonymy of E. jxipnana, are 

 one and the same, representing a widely distributed polymorphic 

 species. 



Mindanao, Province of Surigao, Caraga, E. D. Merrill 51^52, October 6, 

 1906. Open grassy slopes, ± 100 meters altitude. Only one plant seen in 

 six miles. Flowers pale purple. 



6. Eulophia squalida Lindl. in Bot. Reg. (1841) Misc. 77. 



Luzon, Palawan. 



Also Sumatra, Borneo, Java, Celebes. 



7. Eulophia Vanoverberghii Ames in Phil. Journ. Sci. 7 : 13. 

 This is a near ally of E. Merrillii, at once distinguishable from 

 it by the almost obsolete lateral lobes, and the more scattered 

 verruciform papilla? of the labellum. In E. Merrillii the verruci- 

 form papilla? are gathered into three series in front of the paral- 

 lel fleshy keels which arise at the base of the labellum ; in E. Van- 

 overberghii these papilla? are distributed over the five or more 

 main nerves of the disc. E. dentata is easily distinguished from 

 E. Vanoverberghii and its allies by the conspicuous spur and by 



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