XXXIV. 



Arum maculatum ; Carex pallescens and silvatica ; Milium effusum ; Cala- 

 magrostis epigeios ; Melica uniflora ; Lastrea Filix was, dilatata and 



Various waifs and strays occur. In some cases their origin can be 

 easily traced, as in several exotic plants at Nayland and Stoke, which, 

 without doubt, are traceable to foreign seeds brought in with wheat 

 from abroad for Nayland Mill. In other places, strange plants have 

 evidently been introduced with foreign seed sown in the fields. Other 

 plants frequently occur, where we can have no satisfactory account to 

 give of their appearance. A gradual change is taking place in the Flora 

 of the County. Several plants of the early part of this century are 

 now no longer to be found, and others are becoming rarer every day. 

 To meet this, there is a constant succession of foreign plants becoming 

 naturalized, and almost undistinguishable from the aboriginal vegeta- 

 tion of the County. The Anacharis Alsinastrum, unknown in England 

 fifty years ago, is as fully established as a British plant as if it could 

 claim a descent of thousands of years. Veronica Buxbaumii is now to 

 be found in all the corn-fields of the country ; yet many of us can look 

 back to the time when its claims to notice were being advocated by 

 Borrer and others. There is a system of compensation in Providence, 

 which makes good our losses, supplying new occupants suited to the 

 changed condition of things, where others had been forced to retire 

 from the pressure of adverse surroundings.. The change, however, is 

 so slow, that there is no reason to fear that the distribution of plants in 

 Britain will be greatly modified in the course of succeeding centuries. 



