﻿CONTENTS. 



Page. 



Introductory statement 5 



Inventory 9 



Index of common and scientific names 87 



ILLUSTRATIONS. 



Page. 

 Plate I. The service tree, a neglected Mediterranean fruit tree (Sorbus do- 



mesticaL. S. P. I. Nos. 41703 and 41804) 12 



II. Thejequitiba, a giant forest tree of Brazil (Cariniana legalis (Mart.) 



Kuntze. S. P. I. No. 41933) 12 



III. The dago haya, the best tropical yam, from the island of Guam, 



growing at Miami, Fla. (Dioscorea alata L. S. P. I. No. 39705) . . 50 



IV. The Manawa yam, from the Republic of Panama {Dioscorea sp. 



S. P. I. No. 42052) 50 



V. Tubers of the white yampee, a variety of yam growu in the Canal 



Zone (Dioscorea trifida L. f . S. P. I. No. 42053) 50 



VI . Another form of yampee, from the Canal Zone (Dioscorea sp . S.P.I. 



No. 42054) 50 



3 



