OHIO CONIFERS 235 



closure since the remoNal ot the trees, three years or more 

 since. 



Nevertheless, in this long unwatercd earth, one of the 

 stumps still maintains a vigorous growth of shoots and shows 

 no sign whatever of giving up the fight with aridity. Today 

 I counted sixteen of these shoots, two of which are just 

 putting up, while eight are well supplied with leaves of 

 normal size, the shoots themselves approximating two feet in 

 lenj;th. Stems and foliage are all of course quite blanched 

 from growing in the dim light. 



The shortest distance form the shoots to the outside 

 of the house is ten feet. There a flower bed receives rain 

 in winter, and some irrigation water during the dry months, 

 hut it is difficut to conceive that the influence of such wetting 

 reaches to the old stump. It will be interesting to see how 

 long it can keep up this dry existence. 



Pasadena, California, Sept. 13, 1908. 



A KEY TO OHIO'S COMMONER CONIFERS. 



By L. W. Sauer. 



I. Fruitadry, many-scaled cone; a pair of winged seeds 

 !n the inner face of each scale. Leaf-buds scaly. 

 A. Leaves persistent. 



I. Needle-like; in clusters Piiiris (Pines) 



a. In two's, 



( I ) Cones less than 6 cm., cone-scales tipped — 



Yellow Pine . .Piiiiis ( chuuita Mill 



(2.) Cones less than 6 cm., cone-scales not tipped — 

 Canada Pine Phiiis rcsuiosa Ait. 



b. In three's, 



( r ) Cones light, but nearly as long as leaves (25- 



35 cm.) — 



Georgia Pine Piuiis pains tris Mill. 



(2) Leaves 7-13 cm. cones ovoid — 



Pitch Pine Pi)i/is ri^^'uia Mill. 



