PREFACE. 
THE pomelcdon of his Work affords the author an opportunity of apologizing for the delays that have 
attended its publication, and which he fears must have taxed the patience of many of his subscribers. 
These delays were not, however, under his own control, but were owing, in part, to the difficulties which 
an author, resident a the country, experiences when publishing a work in town ; and, in part, to the dilatory 
blooming of particular plants, without which the series of illustrations would have been incomplete. 
The present is also ie most suitable occasion for offering his grateful acknowledgments to the 
botanical friends who have so kindly assisted him in the progress of his undertaking. To those distin- 
guished foreigners, Professor Von Martius, of Munich ;—Professor Poeppig, of Leipsig:;—Dr. Prdliches 
of Vienna ;—and Dr. Klotzsch, of Berlin, his thanks are especially due, for the facilities afforded him in the 
examination of the herbaria under their care. His obligations to many of the leading British cultivators 
are expressed in the letter-press which accompanies the representations of the plants they respectively — 
supplied. 
To Professor Lindley a separate and more ample acknowledgment must be paid, as nothing could 
exceed the kindness with which he has given his invaluable advice and ready help in the numerous instances 
in which both were greatly needed. 
Kwyperstey Hatz, August 1, 1843. | 
