Former Distribution of British Plants. 147 



Salix pentandra, L. 



Unknown fossil in Britain. 



Recorded from the Pine Zone (Neolithic) in Gotland 

 (Gunnar Andersson) ; and doubtfully from Griinenthal, in 

 Holstein (Carl Weber). 



Salix cinerea, L. 



Neolithic (?) :— 



Caerwys, Flintshire (in calcareous tufa). 



Late Glacial : — 



Bovey Tracey (Heer and Nathorst). 



Interglacial : — 



West Wittering, Sussex. 



Preglacial (Cromer Forest-bed) : — 



Mundesley (Nathorst). 



Also recorded from Fahrenkrug in Holstein (C.Weber); 

 from Klinge bei Cottbus, Prussia (C.Weber); in the Birch, 

 Pine and Oak Zones (Neolithic) in Sweden (Gunnar 

 Andersson). 



Salix aurita, L. 



Unknown fossil in Britain. 



Recorded from Fahrenkrug and Klinge, associated with 

 Brasenia (C. Weber); from the Birch, Oak, and Spruce 

 Zones in Sweden (Gunnar Andersson). 



Salix Caprea, L. 

 Neolithic : — 



Barry Docks, Glamorgan ; Fenland (A. Bell) ; Caerwys, 

 Flintshire. 



