SYNOPSIS 
« OF THE 
NATURAL ORDERS OF BRITISH PLANTS 
This Synopsis has been prepared for the purpose of facilitating 
the discovery of the Oedee to -whicli an unknown British 
Plant belongs. It must he used with caution^ as a very sliglit 
error will totally mislead, and often the character used is not 
quite determinable, or is inconstant in some degree : I there- 
fore am very far from advising the use of this Synopsis. The 
student must always commence with the pair of characters 
numbered 1 in the left-hand margin ; and having determined 
with which of these his plant agrees, proceed similarly with 
the group of characters referred to by the number on the 
right-hand side of the page, and so on. 
For instance, having gathered a Uawthmn^ he finds it to 
agree with the second character of number 1, the first of 
number 3, the second of number 4, the tkii-d of number 29, and 
the first of number 30. It therefore belongs to Oedee xxvi. 
Rosacea and Suborder Pome.e. Then turning to the body of 
the Manuxil (p. 104), he will examine the specimen by the 
characters given for that Order and its Suborder. Finding it 
to agree with them, a perusal of the generic definitions placed 
under Pome^ will show that it is a Cratcegus. After a little 
experience in the examination of plants, the eye becomes so 
familiar with the principal Orders as to render this process 
unnecessary, except in doubtful cases. 
xxxi 
