Former Distribution of British Plants. 141 
Interglacial :— 
Hoxne, Suffolk (bed D); West Wittering, Sussex. 
Preglacial (Cromer Forest-bed) :— 
Sidestrand, Norfolk (?). 
RUMEX HYDROLAPATHUM, Huds. 
Unknown fossil in Britain, 
Recorded from the Pine and Oak Zones (Neolithic) in 
Gotland (Gunnar Andersson). 
RUMEX ACETOSELLA, L. 
Interglacial :— 
Hoxne, Suffolk (bed D) (?). 
Preglacial (Cromer Forest-bed) :— 
Beeston, Norfolk. 
It is noteworthy that our two aquatic docks, &. 
aquaticus and R. Hydrolapathum, are still missing in the 
fossil state in Brltain. 
HIPPOPHAE RHAMNOIDES, L. 
Unknown fossil in Britain. 
Recorded from Norrland in Sweden in calcareous 
tufa (Nathorst), and from Gotland (Gunnar Andersson), 
VISCUM ALBUM, L. 
Unknown fossil in Britain. 
Recorded from the Oak Zone (Neolithic) in Gotland 
(Gunnar Andersson). 
EUPHORBIA HELIOSCOPIA, L. 
Neolithic: — 
Redhall, near Edinburgh, with weeds of cultivation. 
