326 ANNUAL EEPORT SMITHSONIAN INSTITUTION, 1918. 



Bothrodendron, or Cyclostigma as it has frequently been called, 

 is not very different in the appearance of impressions of the stem 

 from some species of Sigillaria. The stems were dichotomously 



FlG. 12.— Fructifications, leaves and bolsters of various fossil Lepidophytes. 

 (Explanation for figure on next page.) 



