OP LOWER GREENSAND PLANTS. 243 



V. 5427 d. Figured, text-fig. 69. Median longitudinal radial 

 section passing: through the pith, primary xylems, and 

 secondary wood. The narrow protoxylems are very 

 well preserved indeed, and form an unusually broad 

 zone next the pith. 



Lower Greensand; Shanklin, I. of Wight. 



Presented by Prof. T. Rupert Jones, 

 transferred from the Botanical Dept., 1898. 



INCERT^E SEDIS. 



CONIFEROUS WOOD (?). 



1766, 1768. Remains of a fragment of decorticated secondary 

 wood, 10x5x4 era. The woody tissue only remains 

 as a structureless film on the enclosed sandstone 

 matrix. Also a smaller specimen similar to the above. 

 Kentish Bag ; Iguanodon Quarry, Maidstone. 



Presented by W. H. Bensted, Esq., 1839. 



V. 8315. A small wedge of secondary wood, 4x2*5x1 '5 cm. 

 It is completely decorticated and very imperfectly 

 petrified, so that it is friable and is tending to dis- 

 integrate. Kentish Kag; Maidstone. Caleb Evans Coll. 



41335, 41336 A. A flat irregular fragment of decorticated, 

 partly petrified wood, 9x6x2 cm. The texture of 

 the wood is very " knotty," and there are a number of 

 small bore-holes through it. Also a very small frag- 

 ment of extremely badly preserved secondary wood. 

 "Lower Greeusand; Isle of Wight." Dixon Coll. 



41338. Fragments of splintering secondary wood, simulating 

 small twigs about 3-6 cm. long, and very imperfectly 

 preserved. Flat mineral bands split the wood into 

 honeycomb-like segments. Isle of Wight. 



Dixon Coll. 



V. 5432. The forking base of a branch, showing externally the 

 knotted irregular woody tissue of the decorticated 



