86 



ON SOME INDIAN JUEASSIC GTMNOSPEEMS. 



almost entirely oWiterated, as seen in transverse section (those areas not marked by curved lines in the 

 diagram) ; the woody nature of these areas is indicated by a comparison with the fiactured vertical 

 surfaces corresponding to them, these surfaces being regularly striated. The outer layered tissues show 

 no definite structure ; it is possible that they may originally have been corky in nature. 



The longitudinal section passes through the lateral structure mentioned above, showing part of its 

 axis in transverse section and part of the main axis in longitudinal section. The connection between 

 this lateral structure and the main axis is obscure, owing to imperfect preservation and compression 

 of the tissues. The longitudinal section of the wood shows a compact structure, but actual details are 

 not clear. Nothing can be determined as to the appearance of the medullary rays in longitudinal 

 section of the wood ; and although occasionally there are indications that the tracheides may possess 

 a single series of bordered pits, such as are shown in Dr. Stopes's figure (32, p. 57), preservation is not 

 sufficiently good to allow of a definite statement being made on this point. 



Although the general anatomical features of the stem cannot be determined, the coniferous appear- 

 ance and texture of the wood is clear, and hence the reference of the specimen to Conifer ocaulon is 

 justified. N- ^• 



im February, 1913. 



