160 Origin of the British Flora. 
Preglacial (Cromer Forest-bed) :— 
Beeston, in Norfolk; Pakefield, in Suffolk. 
Also recorded from the Pine and Oak Zones of South 
Sweden and Gotland (Gunnar Andersson); from Klinge 
bei Cottbus in Prussia, Fahrenkrug in Holstein, and Honer- 
dingen in Hanover (Carl Weber). 
NAJAS GRAMINEA, Delile. 
Interglacial :— 
West Wittering, Sussex. 
A widely dispersed Tropical species, which extends into 
the Mediterranean region, and occurs as an accidental 
introduction into Britain in a canal which receives waste 
hot water from a mill. As a fossil it has only been 
recorded at West Wittering. 
NAJAS MINOR, Allione. 
Interglacial :— 
West Wittering, Sussex. 
Preglacial (Cromer Forest-bed) :— 
Pakefield, Suffolk. ry 
A plant of the Mediterranean region, and of central 
Europe as far north as the Rhine; it is unknown living in 
the north or in Britain. 
ELEOCHARIS ACICULARIS, Sm. 
Roman Period :— 
Silchester, Hampshire. 
Interglacial :— 
Hoxne, Suffolk (bed D); West Wittering, Sussex ; 
Stone, Hampshire. 
