PRIMITIVE LEAF-FORMS OF WALNUT 



Figure 10. Leaves from small late shoots of "Royal" walnut at Bard. California, 

 September, 1922, showing a range of forms, from simple to compound. Some of the 

 smaller leaves have the base distinctly winged and with distinct stipules, or with a 

 stipule on one side opposite a broad pinna. At the upper right-hand corner_ is a 

 leaf whh two stipules on one side, with broad .pinnae opposite, showing that stipules 

 are reduplicated and are morphologic equivalents of pinnae. (Natural size). 



