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. 
