EXPLANATION OF^PLATE XXIV. 



Blechnoxylon tallragarense, Eth. fil. 



Fig. 1. A cluster of fronds radiating from the caudex, which is parti illy 

 hollow through disintegration ; seen from above ; x 2k. 

 „ 2. A similar specimen ia which the caudex projects slightly above 



the level of the fronds ; seea from above ; x 2. 

 „ 3. The impressions of the upper surfaces of two more or less pyri- 

 form fronds and portion of a third ; the caudex is again 

 partially hollowed by disintegration ; x 3. 



,. 4. A series of frond impressions, radiating from a caudex at three 

 successive levels, as displayed by the shading ; x 4. 



„ 7. Portion of an internode seen in profile, with portions of three 

 ironds seen from above ; x 2. 



„ 9. The centre of Fig. 2. showing the crushed in zones comprising the 

 stem ; a naturally weathered section 5x9, 



