POSTSCRIPT. 
2 5 
Tue Author now feels it a duty incumbent on him to acknowledge 
his obligations for the information he has received from various 
friends, since the commencement of the present publication; par- 
ticularly to A. B. Lambert, Esq. whose extensive Library and 
Herbarium has been always open to his inspection, and which is, 
from its richness, and the liberality of its owner, of more real 
_ service to science than any other collection in this country. 
To Miss Lousada he has to return his best thanks for the kind 
interest she has taken in this work ; also to Mr. George Charlwood, 
both for the loan of Books, and for information that was of much 
importance. He feels also obliged to Messrs. George and David 
Don, for interesting communications, and the use of Monographs, 
&c.; and to many other friends, who have rendered him more or 
less assistance ;—to the whole of whom he returns his most grateful 
acknowledgments. 
Not having received the second Volume of. M. Decandolle’s 
_Prodromus before that part of the present work was printed, he 
has made the alterations necessary in the Addenda, with the 
addition of many other Plants, that he has seen or heard of, since 
the former Part of the work has been printed. 
