A Gall on Bearberry (Arctostaphylos)

In the case of any circumpolar plant, it is of much interest to learn whether the insects and fungi attacking it are the same in Europe, Asia and America. The Bearberry ( Arctostaphylos uvaursi ) is already know to have a cocci ( Targionia Dearnessi , Ckll.) infesting it, which is only known to occur in America. This T . Dearnessi , however, is not confined to the Arctostaphylos , for Professor L. Bruner sent me specimens which he collected Oct. 24, 1900, at Weeping Water, Nebraska, on Ceanothus Americanus .