Former Distribution of British Plants. 143 



Myrica Gale, L. 



Unknown fossil in Britain. 



Recorded from the Oak Zone in Gotland, Sweden 

 (Gunnar Andersson) ; from Fahrenkrug in Holstein asso- 

 ciated with Brasenia (Carl Weber) ; and from Honerdingen, 

 in Hanover, associated with Platanus, Juglans, and No/as 

 flexilis (C. Weber). 



Betula alba, L. 

 Neolithic : — 



Drope, Glamorgan ; Southampton Docks (recorded 

 by Messrs. Shore & Elwes) ; Albert Dock, N. Woolwich ; 

 Crossness, Essex (in lower and upper peats), (Spurrell); 

 Whittlesey Mere, Fenland (Skertchly) ; Caerwys, Flint- 

 shire ; Hailes, near Edinburgh ; Cowden Glen, Renfrew- 

 shire. Also common in peat-mosses nearly everywhere. 



Late Glacial : — 



Bovey Tracey, Devon (A. G. Nathorst) ; Close y 

 Garey, Isle of Man ; Crianlarich, Perthshire. 



Interglacial : — 



West Wittering, Sussex. 



Preglacial 'Cromer Forest-bed) : — 

 Common nearly everywhere. 



Betula nana, L. 

 Late Glacial : — 



Bovey Tracey, Devon (Heer); Hoxne, Suffolk (bed C) ; 

 Holmpton, East Yorkshire ; Bridlington, Yorkshire (Na- 

 thorst) ; Corstorphine, near Edinburgh ; Dronachy, Fife ; 

 Crianlarich, Perthshire. 



