ORCHIDACE^E 



.5 mm. latis, obtusis. Ad basim totum labellum vix 2 mm. latum. 

 Gynostemium .5 mm. longum. 



Oberonia obesa resembles O. Costeriana J. J. Smith in general 

 habit, but is smaller, with fleshier leaves and with a slightly dif- 

 ferent labellum. In the specimens examined the leaves are erect, 

 and incurve in such a way as to overlap one another. This pecul- 

 iarity gives to the plants quite a distinct aspect. Whether or not 

 it is found in living specimens I am unable to tell from herba- 

 rium material. 



Luzon, Bontoc Subprovince, Father M. Vanoverbergh 4-07, November 24, 



1910. 



17. Oberonia setigera Ames in Phil. Journ. Sci. 7:10. 

 Luzon. 



18. Oberonia Thisbe Reichb.f. in Bonpl. 3 : 223. 

 Polillo, Luzon. 



19. Oberonia Toppingii Ames in Phil. Journ. Sci. 8 : 413. 

 Luzon. 



20. Oberonia Wenzelii sp. nov. Herba epiphy tica, gracilis, usque 

 ad 2.5 dm. alta. Caules abbreviate Folia ensiformia, elongata, ad 

 apicem attenuata, usque ad 22 cm. longa, 5-12 mm. lata a latere 

 visa, ad basim equitantia, quam inflorescentia longiora. Scapus 

 cum racemo usque ad 1.7 dm. longus, subdensiflorus. Bracteae 

 inflorescentia? triangula?, acuminata?, acuta?. Flores verticillati, 

 minuti. Sepala lateralia ovata, 1 mm. longa, vix 1 mm. lata, acuta. 

 Sepalum dorsale simile. Petala linearia. Labellum 2 mm. longum, 

 late ovatum, auriculatum, ad apicem bifidum, margo utrinque 

 5-7-dentatus. 



Oberonia Wenzelii resembles O. cylindrica Lindl. in habit and 

 has a labellum similar to that of O. iridifolia Lindl. The petals are 

 entire with the exception of the tips, which are obscurely dentate. 



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