Mar., 1901] Kellerman — Minor Plant Notes. 



77 



specimen near the top of a rocky bluflf or hill perhaps one hundred 

 and fifty feet above the valley at Cedar Mills, Ohio. This southern 

 Buckthorn still retained its shining leaves though my visit, was late 

 in November when nearly all the other trees except the oaks were 

 bare. This, with the great quantities of black fruits, presented a 

 charming spectacle. The plant is also reported in Stanley Coulter's 

 catalogue of Indiana plants, discovered in the southern counties by 

 Mr. W. T. Blatchley, "growing on rocky hillsides." 



Rhamnus Caroliniana on a rocky hill 



Twin Beech and Red Oak. 



Twin Trees; Two Species.— Sometimes two trees attempt to 

 occupy the same space at the same time. The cut above shows a 

 red oak and a beech in close juxtaposition, neither having been able 

 to crowd the other out, and the two are united for a short distance 

 from the ground. This would hardly be called a natural graft per- 

 haps, though the two are intimately united. The trees are vigorous 

 typical specimens of the two species, growing near Brush creek, at 

 Arion, in Scioto county, Ohio. Several other examples in the same 

 region were noticed. Sometimes the two trees are the same species, 

 but usually of different species, the union of tissue in all cases 

 equally evident. 



