78 Origin of the British Flora. 



Potamogeton pusillus. Scirpus lacustris. 



trichoides. Blysmus rufus. 



pectinatus. Carex incurva (?). 



Scirpus pauciflorus. Chara. 

 setaceus. 



D. — Lignite with Temperate plants. 



Ranunculus aquatilis. Rumex Acetosella (?). 



sceleratus. Urtica dioica (?). 



Lingua. Alnus glutinosa. 



cf. repens. Carpinus Betulus. 



Montia fontana. Corylus Avellana. 



Rhamnus Frangula. Ceratophyllum demersum. 



Rubus Idaius. Taxus baccata. 



Rosa canina. Sparganium ramosum. 



Pyrus torminalis if). Alisma Plantago. 



CEnanthe Phellandrium. Potamogeton pusillus. 



Sambucus nigra. trichoides. 



Eupatorium cannabinum. Eleocharis acicularis. 



Bidens tripartita. Scirpus pauciflorus. 



var. with setaceus 



four equal awns. lacustris 



Mentha aquatica. Blysmus rufus. 



Lycopus europaeus. Eriophorumangustifolium. 



Stachys (?). Carex distans (?). 



Rumex maritimus. ampullacea (?). 



: crispus. 



E. — Clay with freshwater shells, fish-bones, and Temperate 

 plants. 



Ranunculus Lingua. Ceratophyllum demersum. 



repens. Sparganium ramosum. 



Rubus Idaeus. Potamogeton trichoides. 



Hippuris vulgaris. Zannichellia palustris. 



Rumex maritimus. Scirpus lacustris. 



Alnus glutinosa. Carex. 



As beds D and E, containing a temperate flora, lie 



above the Glacial deposits and below loam with Arctic 

 plants, they are classed as Interglacial. Bed C, containing 



Arctic plants, is newer than the boulder-clays of Suffolk, 

 and is therefore called Late Glacial. 



