TABLE OF CONTENTS 
NuMBER 1 (February 12, 1953) 
Miscellaneous Notes on Tropical American Orchids 
By CHARLES SCHWEINFURTH 
NuMBER 2 (March 16, 1953) 
Studies in the Genus Hevea VII 
By Ricwarp Evans SCHULTES . 
NuMBER 8 (May 15, 1958) 
Studies on Peruvian Pleurothallis 
By CHARLES SCHWEINFURTH 
NuMBER 4 (June 19, 1953) 
Plantae Austro-Americanae VIII 
By RicHarD EVANS SCHULTES . 
NuMBER 5 (July 6, 1958) 
Notes on the Cultivated Lulo 
By Ricwarp Evans SCHULTES AND JOSE 
CUATRECASAS 
Plantae Colombianae XIV 
By RicuHarp Evans SCHULTES . 
A New Saurauia from Mexico 
By Ricuarp Evans SCHULTES . 
Numser 6 (December 4, 19538) 
The Pre-Columbian Cultivated Plants of Mexico 
By Rosertr L. DreEssLeER 
[v] 
21 
57 
97 
. 106 
. 112 
. 115 
