THE ELM. 



219 



will be able to find in other works. Botanists are far 

 from being agreed as to which should be termed species, 

 and which varieties, so uncertain are the characters ; nor 

 shall I attempt any settlement of the question, but, omit- 



ting all notice of the rarer and less strongly marked kinds, 

 mention those only which are universally allowed to con- 

 stitute either species or, at least, very distinct varieties. 

 All the Elms indigenous to Great Britain, or naturalized, 



