TABLE III. 



GyMNOSPERMAE DlCOTYLEDONEAE. 



SECONDARY XYLEM OF STEM. 



Frequency distribution of average lengths of tracheary elements. 



Designation 



Gymnosperms: Outer Tracheids 



Inner 

 Dicotyls: Outer "Fibers" 

 Inner 

 " Outer Vessel-segments 



Inner 

 Araucarieae: Outer Tracheids. 

 Taxodieae: 

 Abieteae: 



Taxaceae : " " 



Cupresseae: " " 



Dicotyls I: Outer "Fibers" 

 I: Inner 

 IV: Outer 

 IV: Inner 

 " I : Outer ^^essel-segments 



I: Inner 

 IV: Outer 

 IV: Inner 



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