22 



PLATE 2 



Figure 



1 Caulopteris sp. D, ISM 15512, scale 1:1 



Caulopteris/ Psaronius sp., PP 11798, 

 scale 1:2. With respect to the natural 

 orientation, the stem is probably shown 

 upside down in this figure. 



Section through Caulopteris / Psaronius 

 sp., PP 17785, scale 1:1, showing the 

 calcite bands replacing the vascular 

 bundles (section A, text fig. 8). 



Section through Caulopteris/ Psaronius 

 sp., PP 17785, scale 1:1, showing out- 

 line of marginal vascular bundle 

 (section C, text fig. 8). 



