PREFACE TO THE SECOND EDITION. 



The collecting of plants in the southeastern United States generally, and the 

 botanical exploration of little-known parts of the region, during the past nine 

 years, have brought to notice many species not described in the first edition of 

 this book. These additional species are described in the present volume. In 

 making this edition, signatures one, two, three, twenty, twenty-one, thirty-two, 

 fifty-one, and fifty-two have been rewritten. Pages 481, 482, 495, and 496 of 

 signature thirty-one, pages 661, 662, 663, 664, 665, 666, 667, and 668 of signature 

 forty-two, and pages 785, 786, 799, and 800 of signature fifty have also been 

 rewritten. The recently discovered species not included in the rewritten signa- 

 tures and pages will be found in an appendix, where their relationships and 

 distinctive characters are indicated, beginning in signature eighty-three. The 

 first edition of this work was issued on July 22, 1903. 



J. K. SMALL. 



THE NEW YORK BOTANICAL GARDEN, 

 April 23, 1913. 



