PLATE XXX II. 



Colymbetes Edwcmhi, gen. et sp. nov. Sections of portion 

 of trunk. Lower Greeusand ; perhaps from Leighton Buzzard. 



Fig. 1. Iladial longitudinal section of the trunk, cut absolutely 

 at right angles to the true transverse section and 

 showing one of the bands of wood cut in absolutely 

 transverse section. Note the normal radial series of 

 tracheids with the medullary rays between (cf. text- 

 fig. 109 B, p. 325). No. V. 6117 k (p. 316). 



Fig. 2. Absolutely transverse section, showing the radial view 

 of the longitudinally cut zones whu-Ii alternate with 

 the normal transverse /.ones (cf. text-rig. 105, p. 321). 

 No. 6127 a (p. 316). 



