152 Origin of the Britesh Flora. 
Unknown in Britain in later deposits. Recorded from 
the Spruce Zone (Neolithic) in Sweden (Gunnar Andersson); 
and from Fahrenkrug, and Griinenthal in Holstein (Carl 
Weber); from Klinge bei Cottbus, Prussia (Carl Weber) ; 
and from Honerdingen, in Hanover, associated with 
Platanus, Juglans, &c. (Carl Weber). 
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PINUS MONTANA, Mill. 
Preglacial (Cromer Forest-bed) :— 
Determined by Heer and figured by Saporta from the 
Cromer Forest-bed, but I can find no specimens belonging 
to this species. Small cones of P. sylvestris may have 
been mistaken for P. montana. 
PINUS SYLVESTRIS, L. 
Neolithic :— 
In ‘submerged forests’ and at the base of peat-mosses 
nearly throughout Britain and in Ireland. 
Late Glacial :— 
Bovey Tracey, Devon (Heer); Hoxne, Suffolk (bed C) (?). 
Preglacial (Cromer Forest-bed) :— 
Common at various localities in Norfolk, especially 
Cromer and Happisburgh. 
The distribution in space and time of the Scotch Pine 
is very peculiar. Abundant in the Preglacial Strata of 
Norfolk, it has not been found in any of the Interglacial 
Deposits in Britain, though occurring at Fahrenkrug and 
Griinenthal in Holstein. In Late Glacial times it reap- 
pears at Bovey Tracey, in Devon, and perhaps at Hoxne, 
in Suffolk. During the Neolithic period it seems to have 
been one of our commonest trees; but afterwards disap- 
