First published MCMXLII 



By the Chronica Botanica Company 



of Waltham, Mass., U. S. A. 



All rights reserved 



New York, N. Y.: G. E. Stechert and Co., 

 31 East loth Street. 



San Francisco, Cal.: J. W. Stacey, Inc., 

 236-238 Flood Building. 



Toronto 2: Wm. Dawson Subscription Service, Ltd., 

 70 King Street, East. 



Mexico, D. F.: Livrarla Cervantes, 

 Calle de 57 No. i, Despacho 3; Ap. 2302. 



Rio de Janeiro: Livraria Kosmos, 

 Caixa Postal 3481. 



Buenos Aires: Acme Agency, 

 Bartolome Mitre 552. 



Santiago de Chile: Livraria Zamorano y Caperan, 



Casilla 362.. 



London, W. 1: Wm. Dawson and Sons, Ltd., 

 43 Weymouth Street. 



Moscow: Mezhdunarodnaja Kniga, 

 Kouznetski Most 18. 



Calcutta: Macmillan and Co., Ltd., 

 294 Bow Bazar Street. 



Johannesburg: Juta and Co., Ltd., 

 43 Pritchard Street. 



Sydney: Angus and Robertson, Ltd., 

 89 Castlereagh Street. 



Made and printed in the U.S.A. 



