PLATE XVII. 



Cnpressintwylou <'ryfit(nerioides, sp. nov. Hadial longitudinal 

 section of wood. Kentish Rag; Iguanodon Quarry, Maid- 

 stone. 



Fig. 1. Radial longitudinal section through the wood, showing 

 the numerous low medullary rays. '/*./>., resin-con- 

 taining xylem-parenchyma ; fy>., tracheid, showing 

 round bordered pits. No. V. l;tt08 c (p. 189). 



Fig. 2. Further enlarged portion of the same section just out- 

 side pith, showing a thick strand of protoxylem 

 elements (_>.#.) in the centre of the Held. At ,r the 

 larger pits of the secondary tracheids can he seen. 

 No. V. 13208o (p. 



