PREFACE. 
XI 
Syflema nat ur a at Stockholm in 1759,) and 
adapted to the clafTes. Some which appeared to 
be too brief, are enlarged from the Goiera planta^ 
runi^ and a few I have endeavoured to rectify from 
obfervation. The eflential charadiers of the genera, 
by which thofe of the fame order are diftinguifhed 
from each other, are valuable on account of their 
concifenefs, but, it mull be acknowledged, are not 
yet brought to perfection. 
Under each genus are enumerated the fpecies 
known to grow fpontaneoufly in Great-Britain. I 
have generally given, the name of Linnaeus, the 
firlt name in the third edition of Ray’s fynopfis, 
(with a reference to the author it is taken from,) 
and Cafpar Bauhine’s in his Pinax, when the plant 
is mentioned in that work. Some articles wanting 
in Ray’s fynoplis are fupplied from Dillenius, Wil- 
foil. Hill, Hudfon, Wallis, and Pennant; from my 
own obfervations, and the communications of an 
ingenious friend, Robert Harrifon of Durham, of 
whofe.kind offices in affilting me to profecute the 
work, gratitude demands this acknowledgement. 
In the Engliffi names, an attempt is made to re- 
medy the prefent confulion fo juRly complained of, 
by appropriating a diftinef name to each genus; for 
this purpofe feveral names which have been long 
difufed are reftored, as Baffinet, Culrage, and Pop- 
ple ; the laft of thefe is known in the north of Eng- 
land to fhis day: fome in common ufe, but not met 
with in botanical books, are introduced, as Sedge 
and Archil: when an appofite Engliffi geneiical 
name did not occur, the Latin one of Linnaeus is 
ufed. In the names of fpecies, this author’s brief 
method of diftinguiffiing them by a fingle epithet, 
is imitated; and when the works of Engliffi bota^ 
nills did not afford a proper or expreffive term, I 
have ufed one equivalent to that of Linnaeus or 
b 2 fomo 
