80 Origin of the British Flora. 



Phys. Soc., Edinburgh, 1885, pp. 451-459; Craig, 'On the 

 Post-Pliocene Beds of the Irvine Valley, Kilmaurs, and 

 Dreghorn Districts,' Trans. Geol. Soc. Glasgow, 1887, 

 pp. 2 1 3-226. ) 



The deposits occur beneath Boulder Clay, they yield 

 remains of Mammoth and of the following species of 

 plants : — 



Ranunculus aquatilis. *Potamogeton Zizii or 

 Potentilla (?). heterophyllus. 



Hippuris vulgaris. Zannichellia palustris. 



Myriophyllum spicatum. Chara. 



*Potamogeton rufescens (?). lsoetes lacustris. 



Kirk Michael, Isle of Man. 



(Lamplugh, Annual Rep. Geol. Survey for 1895, p. 13.) 



The plants occur in a peaty layer at a depth of 15 feet. 

 They probably belong to the same period as the upper beds 

 at Ballaugh, and the Arctic plant-beds near Edinburgh. 



Ranunculus aquatilis. Salix herbacea. 



Viola palustris. Potamogeton. 



Potentilla Comarum. Eleocharis palustris. 



Hippuris vulgaris. fCarex alpina. 



Menyanthes trifoliata. sp. 



Kirmington, North Lincolnshire. 



(Reid, ' Geology of Holderness,' pp. 58, 59, 69, 70, Mem. 

 Geol. Survey. 1885.) 



Estuarine warp, peat, and shingle occur at a height of 

 about 80 feet above the sea. The peat is a mass of the 

 common Reed, among which I could find no other plants. 

 The warp contained : — 



Scirpus fluitans. Phragmites communis. 



* Determined by Mr. A. Bennett, 

 t Determined by Mr. C. B. Clarke. 



