PREFACE, SCvil 



V. Walter's Herbarium. This interesting collection, 

 from which Walter's " Flora Carolinian a" was 

 compiled, is in possession of the Messrs. Frasers of 

 Sloane Scjuare, whose fatlier was the intimate friend of 

 Mr. Walter. They very kindly permitted me to make 

 use of it whenever L had otcasion to refer to it. 



I am also highly indebted to William Roscoe, Esq., 

 who very obligingly commmiicated to me Mr. Bradbury's 

 Plants collected in Upper Louisiana. This valuable 

 collection contains many rare and new species, having 

 been collected in a tract of country never explored be- 

 fore : those which were entirely new I have described 

 in the Supplement to the present work. 



Besides these general collections, there were a num- 

 ber of interesting new plants in the Banksian Herbarium 

 collected by different persons in North America. Among 

 tlicm I found a number of those collected by Arclubald 

 Menzies, Esq., during the famous expedition under 

 Vancouver, on the north-west coast of America. As 

 several of them had been described by me from the 

 Le\\-isian collection, I requested permission of Mr. Men- 

 zies to adopt such as were immediately connected with 

 aiy plan, which he very obligingly complied with. 



The number of American plants in the different nur- 

 •series and private collections in the vicinity of London, 

 <;ontributed considerably to my resources, and I am 

 highly indebted to those who gave me their assistance, 

 particularly to Messrs. Lee and Kennedy, whose exten- 

 sive collections exceed any other in Europe. 



The accounts I had frequently heard of the celebrated 

 ^jlierardiau Herbarium at Oxford, made me particularly 



yoL. I. b 



