Deposits containing Fossil Plants 



63 



Thalictrum flavum. 



Ranunculus. 



Nuphar luteum. 



Hydrocotyle vulgaris. 



CEnanthe. 



Solanum Dulcamara. 



Atriplex patula. 



Alnus glutinosa. 



Ceratophyllum demersum. 



Stratiotes aloides. 

 Sparganium ramosum. 

 Potamogeton lucens. 



trichoides. 



Zannichellia palustris. 

 Scirpus pauciflorus. 



lacustris. 



Eriophorum angustifolium. 

 Carex. 



CowDEN Glen, Renfrewshire. 



(Geikie, 'Great Ice Age,' 3rd edit., pp. 102-104. 1894; 

 Bennie, ' On Things New and Old from the Ancient Lake 

 of Cowdenglen, Renfrewshire,' Trans. Geol. Soc. Glasgow, 

 1891, pp. 213-225.) 



This deposit has given rise to much discussion, Pro- 

 fessor James Geikie, Mr. Bennie, and others maintaining 

 that the peat is Interglacial and interbedded between two 

 masses of boulder-clay. Some writers, however, consider 

 the upper boulder-clay to be merely a landslip. The plants 

 have a recent appearance, and include the Opium Poppy, 

 a species cultivated in Neolithic times. I think it safer, 

 therefore, not to consider them older than the Neolithic 

 period. 



Ranunculus aquatilis. 



Flammula. 



Papaver somniferum. 

 Viola. 



Montia fontana. 

 Rubus Idaeus. 

 Poterium officinale. 

 Hippuris vulgaris. 

 Myriophyllum spicatum. 

 Galium palustre. 

 Menyanthes trifoliata. 

 Pedicularis palustris. 

 Galeopsis Tetrahit. 

 Ajuga reptans. 

 Polygonum lapthifolium. 



Rumex crispus. 

 Betula alba. 

 Corylus Avellana. 

 Salix repens. 

 Pinus sylvestris. 

 Alisma Plantago. 

 Potamogeton perfoliatus. 



pusillus. 



pectinatus. 



Scirpus lacustris. 



pauciflorus. 



Carex rostrata. 

 Isoetes lacustris. 

 Chara. 



