113 



. Arboles y arbustos nuevos de Venezuela. Cuarta y quinta decadas. Bol. 



Cient. y Tech. Mus. Com. Venezuela 1. Caracas. 1926. 

 . Plantas usuales de Venezuela. Caracas. 1926. 



Planchon, L. £tude sur les produits de la famille des Sapotes. Montpellier. 



Plumier, C. Nova plantarum Americanarum. Paris, 1703. 



Popenoe, W. Manual of tropical and subtropical fruits. New York, 1920. 



Record, S. J. "Cow trees." Trop. Woods no. 7:29. 1926. 



. Local names of the woody plants of British Honduras. Trop. Woods 



24:15-28. 1930. 



-, and H. Kuylen. Trees of the lower Rio Motagua Valley, Guatemala 



Trop. Wood 7:10-29. 1926. 

 Resources of the Empire. Jelutong trade of British Malaya. Rubber, Tea and 



Cacao Series. London. 1924. 

 . Jelutong industry in Borneo. Rubber, Tea and Cacao Series. London. 



1924. 

 Sloane, H. A voyage to the islands of Madeira, Barbados, Nieves, St. Christo- 

 phers and Jamaica. 2:124-125. PI. 218. 1725. 

 Standley, P. C. The Mexican and Central American species of Ficiis. Contr. 



U. S. Nat. Herb. 20:1-35. 1917. 

 . An enumeration of the Sapotaceae of Central America. Trop. Woods 



4:1-11. 1925. 

 . New species of trees collected in Guatemala and British Honduras by 



Samuel J. Record. Trop. Woods 7:4-8. 1926. 

 ■ . Six new trees from British Honduras and Guatemala. Trop. Woods 



11:18-22. 1927. 

 .Flora of the Panama Canal Zone. Contr. U. S. Nat. Herb. 27:1-416. 



Pis. 1-66. Figs. 1-7. 1928. 



. A second list of trees of Honduras. Trop. Woods 21 : 9-41. 1930. 



-. Additions to the Sapotaceae of Central America. Trop. Woods. 



31:38-46. 1931. 



Vander Laan, J. W. Production of gutta-percha, balata, chicle, and allied 

 gums. U. S. Dept. Commerce, Trade Prom. Ser. 41:1-72. 1927. 



