394 



ABIETINEAE 



,, 



While most of the Tertiary species of Pityostrobus agree closely 

 with recent types some exhibit more or less striking peculiarities. 

 A species described by Engelhardt and Kinkelin as Pinus Timleri 1 

 from Pliocene beds near Frankfurt is founded on pieces of large 

 cones characterised by cone-scales with a conical distal end having 

 3 to 5 flat surfaces (fig. 786, A). The authors compare it with 

 Pinus Gerardiana from Afghanistan. 



B AC 



FIG. 786. A, B, part of a cone and a seed of Pinus Timleri. C, Keteleeria 

 Loehri. See page 370. (After Engelhardt and Kinkelin; nat. size.) 



The material obtained from Pleistocene beds is often well enough 

 preserved to afford trustworthy data with regard to the later geo- 

 logical history of different genera. Clement Keid 2 identified a small 

 cone from the Cromer Forest bed as Pinus silvestris., and from this 

 horizon in Sweden Nathorst 3 records the same species ; it is recorded 

 also from Pleistocene deposits associated with Elephas primigenius 

 in France 4 and similar evidence has been obtained from Switzer- 

 land, Germany, Denmark, and other regions. At a later date the 

 former range of Pinus silvestris and other types is illustrated by the 



1 Engelhardt and Kinkelin (08) p. 205, PL xxv. figs. 14. 



2 Reid, C. and E. M. (15) PL i. figs. 7, 8. 



3 Nathorst (10) p. 1354. 4 Fliche (00). 



