HAMSTEAD BEDS. 207 



The plants of the Hamstead Beds are little known, and only the 

 following short provisonal list can be given : — 



Andromeda reticulata, Ett. Cyperiles Forbesi, Heer. 

 *Arthrotaxis (Sequoia) Couttsiae, Heer. Nelumbium, sp. 

 Carpolithes Websteri, Brong. Chara, 2 sp. 

 globulus, Heer. 



As far as one can judge by the character of the moUusca the 

 temperature of the sea appears to have been very uniform durino* 

 the deposition of the Oligocene beds. There is nothing in the 

 character of the Headon or Hamstead fauna to mark the one as 

 having lived in a colder or warmer sea than the other. 



* During a recent visit to the Isle of Wight (in Aug. 1889) Mr. Gardner and I 

 obtained cones of the so-called Sequoia, which showed clearly that here, as 

 Mr. Gardner had already proved for the Hordwell specimens, the abundant 

 coniferous twigs belong to the shrubhy Arthrotaxis of Tasmania, not to the 

 gigantic Sequoia. The foliage of the two is very similar, but the cones are"quite 

 different. — C.R. 



