74 Origin of the British Flora. 
Quercus Robur. Scirpus lacustris. 
Pinus sylvestris. Carex dioica. 
Potamogeton heterophyllus. echinata. 
perfoliatus. ——-— canescens. 
pusillus. — flava. 
Eleocharis palustris. Isoetes lacustris. 
Scirpus pauciflorus. Chara. 
setaceus. 
HAPPISBURGH, NORFOLK. 
(Reid, ‘Geology of Cromer,’ Mem. Geol. Survey, 1882; 
Reid, ‘Pliocene Deposits of Britain,’ Mem. Geol. Survey, 
1890.) 
Slabs of clay-ironstone full of leaves and twigs are 
thrown up by storms at this spot. They belong to the 
lower part of the Preglacial Cromer Forest-bed. This 
locality is the only one where determinable Preglacial 
feaves are found in any quantity. 
Cornus sanguinea. Fagus sylvatica. 
Ulmus. Salix, 2 sp. 
Betula alba. Pinus sylvestris. 
Alnus glutinosa. Picea excelsa (cone). 
Quercus Robur. 
HITCHIN, HERTFORDSHIRE. 
(Reid, ‘The Paleolithic Deposits at Hitchin and their 
Relation to-the Glacial Epoch,’ Proc. Royal Soc., Vol. LXI., 
Pp. 40-49. 1897.) 
The plant-bearing deposits rest in a hollow eroded 
in the Glacial beds, underlie brick-earth with Palzolithic 
implements, and apparently correspond with the Inter- 
glacial deposits at Hoxne, though the overlying stratum 
with Arctic plants has not been discovered at Hitchin. 
Ranunculus aquatilis. Montia fontana. 
sceleratus. Prunus spinosa. 
repens. Poterium officinale. 
