Feb., 1905,] 
Key — Ohio Woody Plants. 
285 
109. 
109. 
109. 
110 . 
no. 
111 . 
111 . 
111 . 
112. 
112 . 
11 . 3 . 
11.3. 
114. 
114. 
115. 
1 15. 
IIG. 
IIG. 
117 . 
117. 
118. 
118. 
119. 
119. 
120 . 
120 . 
121 . 
121 . 
— 109 — 
Pith large, white, with cavities or more or less diaphragmed ; twigs 
robust, gray, with large lenticels; bundle scars in a ring in the 
large leaf scar; trees. PAULOWNIA. 
Leaves with tendrils on the persistent petiole which shows 2 leaflet 
scars at the end; climbing vines with rather large, sometimes 
hollow pith. BIGNONIA. 
Pith not diaphragmed nor with lenticular cavities; petioles not with 
tendrils. 110 
Axillary buds evident. 112 
Axillary buds minute and not evident, or covered by the persistent 
petiole base. 111. 
Bundle scar forming a curved line; lateral buds sunken in the bark; 
leaf scars after in threes. CEPHALANTHUS. 
Bundle scars 3; terminal bud with 2 acuminate visible scales. 
CORNUS. 
Bundle scars 3; terminal bud small, dome-shaped; axillary buds 
bursting through the prominent petiole base; twigs manv-angled 
PHILADELPHUvS. 
Twigs green or greenish, never twining. 113 
Twigs gray, brown, or red, not green when ripe. 115. 
Terminal bud self-pruned; stipular scars prominent; bark with 
strong odor. STAPHYLEA. 
Terminal bud present. 114. 
Leaf scars meeting and ending upward in a free appendage ; base of 
petioles in some cases originally covering the axillary buds; 
bundle scars 3 or more. ACER. 
Leaf scars not meeting ; twigs more or less 4-angled ; base of petiole 
not covering the axillary bud; bundle scar 1. EUONYMUS. 
Twigs and buds brown-scurfy or stellate-pubescent; bundle scar 1 ; 
shrubs. LEPARGYREA. 
Not brown-scurfy or stellate-pubescent. 116. 
Bundle scars numerous in an ellipse or a ring; trees with small flat 
buds or woody vines climbing by rootlets. 117. 
Bundle scars 1, 3, or 5, or sometimes more but not in a ring. 118. 
Trees w'ith small flat buds; twigs gray, robust; pith large, white; 
leaf scars often in threes. CATALPA. 
Woody vines climbing by rootlets; ends of the twigs usually 
withering. TECOMA. 
Pith very large, the soft wood small in proportion; twigs either with 
cleavage planes in the upper leaf nodes or with brown papery 
outer bark separating readily from the green inner layer; 
shrubs with robust twigs. 119. 
Pith small or if rather large then the plants trees. 120. 
Lenticels conspicuous; tips of twigs self-pruned in the leaf nodes. 
SAMBUCUS. 
Lenticels inconspicuous ; twigs not self-pruned ; outer papery brown 
bark easily separated from the inner dark green layer. 
HYDRANGEA. 
— 120 - 
Bundle scars 1, or several closely united in a curved line appearing 
as 1. 121. 
Bundle scars 3 or more, distinct. 125. 
Low shrubs with decurrent ridges from the middle of the leaf scar. 
122 . 
Trees or erect shrubs without decurrent ridges from the middle of 
the leaf scar but sometimes with ridges or wings from the ends 
of the leaf scar. 123. 
