CONTENTS. 



Page. 



Introductory statement 5 



Inventory 13 



Index of common and scientific names 98 



ILLUSTRATIONS. 



Page. 

 Plate I. Beechis as they are sold in tlie Cliinese markets. (Eleocharis 



tuberosa (Roxb.) Scliult., S. P. I. No. 44573.) 26 



II. A beeclii pond near Canton. {Eleocharis tuberosa (Roxb.) 



Schult., S. P. I. No. 44573.) 2G 



III. A fruiting brancli of the Barcelona filbert. {Corylus avellana 



L., S. P. I. No. 44608.) 32 



IV. A young tree of the Barcelona filbert. {Corylus avellana L., 



S. P. I. No. 44608.) 32 



V. Numbering a selected avocado to avoid errors in cutting bud 



wood. {Persea americana Mill., S. P. I. No. 44625.) 32 



VI. A Guatemalan girl holding a cluster of the Tumin avocados. 



{Persea americana Mill., S. P. I. No. 44627.) 32 



VII. A new relative of the avocado, the Guatemalan coyo. {Persea 



schiedeana Nees., S. P. I. No. 44682.) 4S 



VIII. The yam bean as a cover crop. {Cacara erosa (L.) Kuntze, 



S. P. I. No. 44839.) 48 



. IX. The parent tree of the Tertoh avocado. {Persea americana Mill., 



S. P. I. No. 44856.) 80 



X. The guayacan, or " lignum-vitge," an ornamental shrub from 

 Guatemala. {Guaiacum guatemalense Planch., S. P. I. No. 



44858.) 80 



3 



