STUDIES IN FOSSIL BOTANY 



2. Calamostachys 



3. Palaeostachya 



4. Cingularia . 



5. Archaeocalamites . 



6. Macrostachya 



7. Classification 



8. Mesozoic Equisetales 



5> 

 61 



67 

 7o 



72 

 73 



CHAPTER IV 



SPHENOPHYLLALES 



Sphenofihyllea.es Cheirostrobeae j Pseudobomiales 



I. Sphenophylleae 

 1. Sphenophyllum — Vegetative Organs 



2j Fructifications of Sphenophyllum — S. Dawsoni Type 



3. Bowmanites Romeri, Sphenophyllum fertile, and S. 



majus 



II. Cheirostrobeae 



4. Cheirostrobus . ... 



Pseudobomiales 



5. Pseudobornia 



86 

 86 

 99 



107 



114 

 114 



123 

 123 



CHAPTER V 



