NuMBER IX (October 21, 19388) 
Hintonella, a new Genus of the Ornithocephaleae 
from Mexico 
By Oakes AMES 
A Correction 
By Lovuts O. WILLIAMS 
NumBer X (October 25, 1938) 
Plantae mexicanae I 
By Ricuarp Evans ScCHULTES 
Notes on the Genus Sobralia 
By CHARLES SCHWEINFURTH 
Nomenclatorial Notes. VIII 
By CHarLes SCHWEINFURTH 
[ vii ] 
185 
192 
1938 
196 
200 
