Former Distribution of British Plants. 1 1 3 



Acer campestre, L. 

 Neolithic:— 



Crossness, Essex (upper and lower peats). 



Preglacial (Cromer Forest-bed) — : 



Pakefield, Suffolk. 



Also recorded from the Oak Zone in Sweden (Gunnar 

 Andersson) ; and from Fahrenkrug, in Holstein, and 

 Klinge bei Cottbus, in Prussia (associated with Brasenia) 

 (C. Weber). 



Acer monspessulanum, L. 

 Interglacial : — 



Stone, Hampshire ; Selsey, Sussex. 



This maple lives throughout the Mediterranean region 

 and extends into central Europe ; it grows well in gardens 

 in the South of England and seeds freely. 



Acer platanoides, L. 



Recorded by Gunnar Andersson from the Oak Zone in 

 South Sweden ; and by Keilhack from Lauenburg an der 

 Elbe, associated with Brasenia. It has not been found in 

 Britain. 



PRUNUS SPINOSA, L. 

 Neolithic: — 



Crossness, Essex (upper and lower peats) ; North- 

 ampton ; Hailes, near Edinburgh. 



Interglacial : — 



Hitchin, Hertfordshire ; West Wittering, Sussex. 



Preglacial (Cromer Forest-bed): — 



West Runton, Overstrand, Happisburgh (Norfolk), 

 Pakefield, Suffolk. 



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