THE FLORA OF THE CAMBRIDGE 

 DISTRICT. 



BY A. WALLIS, B.A., Kings College. 



THE object of this short account of the Flora of the 

 Cambridge district is not to give a list of localities, but 

 rather to direct the attention of the reader to the vegetation 

 as a whole. In the first portion of the paper will be found 

 a short analysis of our flora and an attempt to explain the 

 present distribution, that is, the Cambridge flora in relation to 

 that of the rest of England. 



The remainder of the paper is occupied with an account of 

 the plant associations found in the district or the local flora. 



By the Cambridge district is meant that portion of the 

 county which is within easy reach of the town either by train 

 or bicycle that is to say, it consists of the whole of South 

 Cambridgeshire, a small strip of North Hertfordshire, a corner 

 of Essex 'and the western border of Suffolk. 



Watson classified British plants according to their dis- 

 tribution in the Island. Those that were generally distributed 

 he called British, those that were abundant in the south and 

 tended to disappear towards the north he called English. 

 He found that there were certain plants restricted to the 

 East of England, to which he gave the name Germanic, not 

 thereby implying that they had their origin in Germany, but 



M. & S. 14 



