148 Origin of the British Flora. 
Also recorded from Sweden in the Birch, Pine, and 
Oak Zones (Gunnar Andersson); and from Grinenthal, in 
Holstein, associated with Brasenia (Carl Weber). 
SALIX PHYLICIFOLIA, L. 
Unknown fossil in Britain. 
Recorded from Sweden in the Dryas (Late Glacial), and 
Birch and Spruce (Neolithic) Zones (Gunnar Andersson). 
SALIX NIGRICANS, Sm. 
Unknown fossil in Britain. 
Recorded from Sweden in the Pine, Oak, and Spruce 
Zones (Gunnar Andersson). 
SALIX REPENS, L. 
Neolithic :— 
Fenland (A. Bell); Barnwell, Cambridge; Cowden 
Glen, Renfrewshire. 
Late Glacial :— 
Corstorphine, near Edinburgh ; Crianlarich, Perthshire. 
Also recorded from Klinge bei Cottbus in Prussia 
(Carl Weber) ; and from Lauenburg an der Elbe (Keilhack). 
In each case it is associated with Brasenia. 
SALIX LANATA, L. 
Unknown fossil in Britain. 
Recorded from the Pine Zone in Norrland (Gunnar 
Andersson). 
SALIX ARBUSCULA, L. 
Unknown fossil in Britain. 
Recorded from Sweden in the Birch and Spruce Zones 
