ORCHIDACEiE 



crista labelli carnosa, minute puberula vel glandulosa, valde pro- 

 ducta, obtuse sex-tuberculata, tribus majoribus antipositis. Co- 

 lumna 3 mm. alta, basi valde incrassata, antice in appendicem 

 complanatam, sulcatam, quadratam producta, dimidio superiore 

 conspicue alata, ala 2 mm. longa, dolabriformi. Anthera et pol- 

 linia sectionis. 



Closely allied with O. intermedium Bertero from which it dif- 

 fers conspicuously in the structure of the crest, in the much re- 

 duced isthmus and in the very dissimilar lateral lobes of the la- 

 bellum. In specimens examined the crest is distinctly six-tuber- 

 culate, with three of the tubercles much flattened laterally and 

 situated in a transversely parallel series in front of the three more 

 fleshy basal tubercles which are also parallel to one another and 

 decurrent posteriorly to form a thickened keel which passes to 

 the base of the column. In habit not unUke O. intermedium Ber- 

 tero as represented by the specimen collected by H. von Tuerck- 

 heim in Santo Domingo (3334). 



Haiti, vicinity of Etdng, E. C. Leonard 3600, April 1920. Flowers light 

 yellow; epiphjrte; on arid low hills, occasional. (T^te in U. S. Nat. Herb. 

 No. 1075944. Duplicate type in Herb. Ames No. 21849.) 



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