. / I) n<i and V'-a'/V/ Kc\ 



65 



di. Twig large and hairy, bundle-scars six or a few 

 nmrc. 1)iid densely silky grayish nearly surrounded 

 by U-shaped leaf-scar, no stipule-scars, no terminal 

 bud, tip-scar or dead tip of twig prominent, sap 

 white, resinous, pith large yellow. 



Rlins hirta (Linn.) Sudworth. 

 d*. Twigs small and glabrous, bundle-scars three or 



rarely five. 



('/. One bud in axil of each leaf, only white silky 

 top visible, nearly surrounded by U-shaped leaf- 

 scar, no stipule-scars, no terminal bud, tip-scar 

 prominent, twig dark red brown. 



P tele a trifoliata Linn. 



rj. Several superposed buds in axil of each leaf, 

 glabrous, hidden beneath leaf-scar; twig light 

 yellow brown, glabrous. 



Glcditsia triacanthos (see above). 

 ci2- Bud at end of twig not sunk in bark. 



bi. Bud at end of twig irregular in outline, unsymmetrical 



in form, scales felty. 



ci. Terminal bud pedicelled, scales with pinnate apex, 

 buds densely tomentose . light brown, stipule-scars 

 small, twigs small dull gray-brown slightly pubescent, 

 leaf-scars small broadly crescent-shaped, three or 

 four bundle-scars often united in a single line. 



Hamamclis virginiana Linn. 

 r_ ? . Terminal bud sessile, no stipule-scars. 



Glediteia triacanlhos Gymnocladus. Tlhu* hirt-a Himamelu wryiniana Feeler 



L Leaf-scar magnified. 



LC Longitudinal section showing buds beneath leaf-scar. 



