THE AMERICAN BOTANIST. 9 



hairy on the midrib and veins at the base. Flowers in clusters 

 of 2-6, usually borne near the ends of the branches when the 

 leaves are half expanded, on short, stout pedicals, 2-3 mm. 

 long; corolla white, short cylindric or ovoid, constricted at 

 the throat, angled, about 7 mm. long and 5 mm. thick ; calyx- 

 lobes smooth, obtuse, green or tinged with red. Fruit dark 

 blue, with little or no bloom, 6-10 mm. in diameter, sweet and 

 well flavored. 



Type Station : — Exposed rocky soil. Peaked Rock, Ana- 

 quassacook Hills, town of Jackson, Washington county, N. Y. 

 Dohhin & Burnham : 4 July, 190-i, and 19 May, 1906. This 



species is named for my friend, Frank Dobbin (1873 ) ; 



who for several years has made a careful and painstaking study 

 of the Flora of Shushan and vicinity. 



Albany, N. Y. 



TREES INJURED BY THE SEVENTEEN- YEAR 



CICADA 



BY H. C. SKEELS. 



THE seventeen-year cicada made its appearance in the 

 northern part of the Mississippi valley during the year 

 1905. Throughout the Desplaines valley the forests of oak 

 showed brown and sere during August, because of the fact 

 .that the cicada in laying her eggs makes a slit through the 

 bark of the twig, down into the sap wood, thus injuring the 

 branch to such an extent, that a little wind or a heavy rain 

 will break it off or leave it hanging dead and brown on the 

 tree. Some branches showed only a few slits, five or six 

 in a row; others were literally ripped along the bark for a 

 foot or more. Many young trees were so badly riddled, that 

 they lost three years growth, dying down to within a foot of 

 the ground. Branches that were of such diameter as not to 

 be broken because of the slits, were opened up to the attacks 



