und 7\v/// l\c\ 



. Pith round, no terminal bud, leaf-scars 

 two-ranked on the twig, many bud-scales. 



11. Pith-rays in a one-sixteenth inch dia- 

 meter branchlet distinctly visible with 

 hand lens, twigs about one-thirty-second 

 inch in diameter, leaf-scars very small, 

 stipule-scars minute, bud about one- 

 eighth inch long, twig dark red lustrous 

 becoming when about one-half inch dia- 

 meter dull gray, tip-scar very small, 

 often dead tip of twig extends past the 

 end bud, bundle-scars three. 



* Carf>iuns caroliniana Walt. 



12. Pith-rays in small branchlet scarcely or 

 not at all visible with hand lens, twigs 

 one-sixteenth inch or larger. 



//. Bundle-scars three to six depressed 

 in corky layer of leaf-scar, tip-scar 

 distinct, stipule-scars small, twigs zig- 

 zag usually larger than one-sixteenth 



*Compare Ostrya virginiana, Ulmus amerlcana, Carpinus caroliniana 

 and Prumis scrotina. 



Fbqtj-s atropunicea Plato nus 



L Leaf-scar magnified. 



LL Longisection showing chambered pith. 



Linodendron Celtis occidentals. 



