EXPLANATION OF THE ILLUSTRATION 
HINTONELLA MEXICANA Ames gen. et sp. nov. Plant 
natural size (2and 8), the fruiting specimen drawn 
from Williams 3799. 1, 3 and 4, flower much en- 
larged. 5 and 6, labellum and column much en- 
larged. 7, column, anther, base of labellum show- 
ing basal callus much enlarged. 9, pollinia much 
enlarged. 
Drawn with the aid of the camera lucida, 
October 1938, by BLancue Ames 
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