TABLE OF CONTENTS 



Notes ox American Willows, IX. By Camillo Schneider 1 



A PlIYTOGEOGRAPHICAL SkETCH OF THE LiGNEOUS FlORA OF FOR- 



MOSA. By E, H. Wilson 



25 



New Species, Varieties and Combinations from the Herbar- 

 ium AND the Collections of the Arnold Arboretum. By 

 Alfred Rehder 42 



Notes on American Willows. X. By Camillo Schneider G5 



The Ligneous Flora of the Staked Plains of Texas. By 



Ernest J. Palmer 



90 



A New Species of Pistacia Native of Southwestern Texas, 



P. texana. Bv Walter T. Swingle 105 



A New Species of Campnosperma from Panama. By Pa^il 



Standley 



111 



Notes on North American Trees. VH. By C. S. Sargent. 112 



New Species, Varieties and Combinations from the Herbarium 

 AND THE Collections of the Arnold Arboretum. By Alfred 

 Rehder...] 121 



Botanical Reconnaissance of Southern Illinois. By Ernest 

 J. Palmer 129 



Philadelphus verrucosus Spontaneous in Illinois. By Alfred 

 Rehder 153 



Azalea or Loiseleuria. By Alfred Rehder 156 



The "Indian Azaleas'* at Magnolia Gardens. By E. H, Wilson 159 



Notes from Australasia. I. By E, H, Wilson 160 



Notes on North American Trees. VIII. By C, S. Sargent 164 



New Species, Varieties and Combinations from the Herbariuai 



and the Collections of the Arnold Arboretum. By Alfred 



Rehde 



174 



Bibliographical Notes. I. By Ethelyn M. Tucker 181 



Notes on American Willows. XI. By Camillo Schneider 185 



A List of the Trees of Louisiana. By R, S. Cocks 204 



The Forest Flora of the Ozark Region. By Ernest J. Palmer . . . 216 



Notes from Australasia. II, By E. H. Wilson 232 



Bibliographical Notes. IL By Ethelyn M. Tucker 236 



Notes 



63 



Errata and Addenda 240 



Index 241 



