The long attenuated apex on the outer bud scales of the elliptical type of buds is evident in Figs. 1b and 2b.
[Illustration: Fig. 2a Fig. 2b
Shagbark Hickory Terminal Bud Scales (1-X)]
The number of lateral buds at one position varied considerably with the usual number being one (Fig. 3a) bud located just above the lobed leaf scar. On exceedingly vigorous sprout growth, or on very vigorous terminal growth twigs, it was found that 2, 3, 4 and occasionally 5 superposed buds might occur (Fig. 3b).
Twigs of shagbark varied considerably both in the rapidity of growth and in color. Frequently the color seemed to be associated with the incident rays of the sun and orientation of the twig on the branch seemed to largely control color.
Twigs upon the same tree would vary from gray to reddish brown to yellowish brown or tan. The majority of observed trees had a reddish brown as the predominant color. Terminal shoot growth of as much as 40 inches was observed and as little as 2-3 inches in very slowly growing mature trees.
[Illustration: Fig. 3a Fig. 3b
Shagbark Hickory Lateral Buds (1-X)]
[Illustration: Fig. 4a Fig. 4b
Shagbark Hickory Leaves (1/3X)]