KEY TO GENERA 



9 



Flowers few, orange-coloured, race- 

 mose 33. 



With pseudobulbs. 



Flowers purple-spotted, several, 

 racemose 34. 



C. Pollinia 6. 



Sepals, petals and lip with long, 

 tailed apices 24. 



D. Pollinia 2. 



a. Without pseudobulbs. 



1. Stem with one leaf at the 



apex. 

 Flowers opening only by a 



chink at the side 20. 



Flowers opening normally. 

 Petals and lip free, much 



alike, and spreading 21. 



Petals free, differing from 

 the lip. Lip jointed with 



column 22. 



Claw of petals and lip adnate 

 to base of column 23. 



2. Stem with two or more leaves 



or leafless. 

 Flowers with a short spur. 

 Lip longer than sepals ; 



sepals forming the spur ... 52. 

 Lip not longer than the 

 sepals ; lip forming the 

 spur. 

 Flowers numerous, on 

 spikes. Capsule de- 

 hiscing in middle. 

 Sometimes leafless ... 60. 

 Flowers few, on racemes. 

 Capsule dehiscing from 



apex. Leafless 61. 



Flowers with a very long spur. 



Stemless and leafless 62. 



Flowers not spurred 56. 



b. With pseudobulbs. 



Flowers spurred 53. 



Flowers not spurred. 



Lip with large lateral lobes, em- 

 bracing the column 51. 



Lip more or less entire. 



Flowers large, sepals Ion?, 



narrow 55. 



Flowers small. 



Scape shorter than leaves ... 54. 

 Scape longer than leaves 57. 



Lcelia. 

 Schomburgkia. 



Brachionidium. 



Cryptophorantli us. 



Stelis. 



Pleurothallis. 

 Lepanthcs. 



Ionopsis. 



Campylocentrum. 



Harrisella. 



DendropJiylax. 

 Oncidhtm. 



Comparettia. 



Macradenia. 



Brassia. 



Trichopilia. 

 Leochilus. 



