64:6 



Wieland — American Fossil Cycads. 



of the U. S. National Museum type Cycadeoidea painei. 2 

 Thus far attention has been specially directed to this 

 type specimen mainly because of remarkable preserva- 

 tion of the vegetative structures. The trunk exemplifies 

 one of the most distinctive of all branching species with 



Fig. 1. 



Fig. 1 [55]. Cycadeoidea Painei. Drawing on photograph of the 

 longitudinal section of a very young bisporangiate bud emergent between 

 leaf bases. Enlarged 5 times. The arrow (D) shows the thin disk 

 enclosing the central cone. The elongate receptacular cushion supports 

 the developing zone of seed stems and interseminal scales. [To the left 

 there is slight displacement of leaf bases due to armor fracture.] 



2 See description in American Fossil Cycads, Vol. II, p. 85. To Pro- 

 fessor R. S. Bassler of the United States National Museum we are 

 indebted for having the wedge on which this study depends, cut with 

 care and precision. 



