394 



ABIETINEAE 



[CH. 



While most of the Tertig-ry 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^ 

 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 A C 



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 Reid^ identified a small 

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

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

 also from Pleistocene deposits associated with Elephas pritnigenius 

 in France* 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 KinkeUn (08) p. 205, PI. xxv. figs. 1 — i. 



2 Keid, C. and E. M. (15) PI. i. figs. 7, 8. 



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



