Mar., 1909.] Distribution of Woody Plants of Ohio. 
469 
protection against the elements, rather than a signal inviting 
insect visitations. 
On the other hand there may be a reaction from the injury in 
removing the parts even though the vital parts, the stamens and 
pistils, remain untouched. Yet it is seen that the nasturtiums 
in the green house were unaffected by removing the showy parts, 
seeming not to suffer in the least, so with some cucumber vines 
in the green house, these set fruit without apparent check from 
cutting away these parts. This would lead us to think that 
injury from cutting away these parts is perhaps a minor con¬ 
sideration, although more tests would need to be made using for 
instance nasturtiums and cucumbers outside as an additional 
check, also several other kinds of flowers. At any rate the one 
thing of which there can be no mistake in interpreting is that 
insects are not riecessarilv attracted by the color of the flower 
parts, as has so often been said. 
DISTRIBUTION OF THE WOODY PLANTS OF OHIO. 
Geo. W. Hood. 
In the following list an attempt has been made to divide the 
woody plants of Ohio into groups according to distribution. 
The data were obtained from the State Herbarium which is now 
fairly complete as regards the woody plants of the State of Ohio. 
In some cases, further collecting is necessary to show the exact 
distribution. The plants are grouped according to the section 
in which they are found, as trees, shrubs, climbing vines, and 
trailing plants, under the heads of general, northern, southern, 
eastern, or rare distribution. There are apparently no woody 
plants that have come into the state from the west. 
Out of the 278 species listed there are 106 trees, 54 shrubs, 13 
climbing vines, and 4 trailing plants of general distribution; 11 
trees, 11 shrubs, and 2 climbing vines, of northern distribution; 
10 trees, 1 shrub, and 2 climbing vines, of southern distribution; 
1 tree of eastern distribution; 21 trees, 36 shrubs, 4 climbing 
vines and 2 trailing plants of rare distribution. Besides the 278 
species there are 32 others which have been reported as occuring 
in the state, 17 of which should probably be removed from the 
state list, but the remaining 15 should probably be retained as a 
part of the Ohio flora. 
Supplementing the list on distribution is one of 66 of the 
important timber trees of the state, 54 of which are of general 
distribution and 12 of rare distribution. The 50 most important 
are marked with a star. 
