CLASSIFICATION OF CALAMARIEAE 77 



tinguishable from one another may even have borne 

 fructifications as different [as those of Palaeostachya and 



Fig. 34. — Asterophyllites densifolius. Branch bearing distichously arranged twigs; both 

 branch and twigs with verticillate leaves. Somewhat restored. After Grand'Eury. 



Calamos tacky s. The branches were arranged in whorls 

 limited to certain definite nodes (Calamitina of Weiss's 



