ORCHIDACEiE 



Plate 109 

 Triphora yucatanensis. 1, flower enlarged. 2 and 

 3, plant natural size, drawn from the type pre- 

 served in the Herbarium of the Field Museum 

 of Natural History, Chicago, Illinois. 4, label- 

 lum enlarged, drawn to show keels and appen- 

 dages. 



Triphora mf^icana.5,labellum enlarged, drawn 

 from the type preserved in the Gray Herba- 

 rium, Harvard University. 6, plant natural size, 

 drawn from the type. 



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