DE3CRIPTI V K r ATA !.; r K 



diameter, sometimes as many as 4-f> tracheid-rows adjacent. 

 Round bordered pits in radial walls of the tracheids are 

 chiefly in one, sometimes two alternating rows. [Carruthers 

 describes the tracheids as having 2 or 3 rows of " disks " 



Text-fig. 93. Cycadeoidca Yateaii, Carr. Drawing of external view of p:irt 

 of the trunk : type-specimen, a., the persistent leaf-bases ; b., the otitrr 

 face of the second wood-zone, showing lenticular scars due to leaf- 

 traces ; c., the corrugated surface of the cortical zone. X about 3. 

 After Carruthers. No. V. 13238. 



(bordered pits). 1 have not been able to confirm this.] Cortex 

 narrow, and leaf-bases not massive in radial thickness. 



