PREFACE TO THE SUPPLEMENT. 



When Mr. Loudon published the First Edition of the Hortus Britannicus in 1830, he 

 added all the plants that had been introduced after the Work had been compiled, and while 

 it was going through the press, in a Supplement ; and he promised his readers that additional 

 Supplements of new plants should be added from time to time as they became necessary. 

 Two additional Supplements, and a Supplementary List, were thus added ; but as it was 

 found extremely troublesome to look through all these when it was wished to know 

 what new plants of any particular genus had been introduced, it has been thought best, 

 now that a new list is required, to amalgamate all the previous ones, together with the new 

 plants, into one single Supplement, only adding a Supplementary List of the new plants 

 introduced while the principal Work was going through the press. The Supplement and 

 List have been prepared by Mr. W. H. Baxter and Mr. David Wooster, under my superin- 

 tendence ; and the greatest pains have been taken to render both as correct as possible. 



The only typographical difference in this Supplement from the body of the Work is, that 

 the synonymes are printed in Italics. 



It now only remains to thank all those who have kindly aided in the preparation of this 

 Supplement, and more especially the following : — Mr. Baxter, senior, of Oxford, M. Francis 

 Rauch, Mr. George Gordon, Mr. E. Jenner, Messrs. Knight and Perry, Mr. Robert Fortune, 

 and Mr. Low of Clapton. 



J. W. L. 



Baysuater, June 13. 1850. 



