PREFACE. 
The want of a Botanical Nomenclator, in 
an improved state, for arranging and form- 
ing lists of private collections, has been 
much regretted by many lovers of botany. , 
No less than twenty years having elapsed 
since the publication of the Nomenclator, 
containing all the plants described by the 
celebrated Linnaeus, an infinite number of 
new plants during that period have been 
introduced by different botanists. 
This consideration, together with the ap- 
pearance of the new edition of the Systema 
Naturae, by the learned Dr. Gmelin (which 
contains all the plants discovered since the 
time of Linnaeus), was a sufficient induce- 
ment,. and may be offered as an apology, 
for presenting the following work to the 
public. 
It is unnecessary to take notice of the 
labour and care which has been bestowed 
on the execution of it. If, nevertheless, 
any mistakes, or material omissions should 
