PLATE XCI 
CycaDELLA KNowLTontana Ward.....----------- 0-0-2 e eee ene eee ee eee eee 396 
No. 500.62 of the Museum of the University of Wyoming. 
Fig. 1. Side view showing the outer ramentaceous layer completely invest- 
ing the trunk. : -* [74 i 
Fig. 2. View of the inner wall of the woody zone, showing scars of the 
medullary rays. 
572 
