The fruit, leaves and branches of the pear are attacked occasionally by the above-named fungus, and as a result a Black Rot, a Leaf Spot or a canker may be produced. Special reports of it have come from New York, Texas and Ohio, and it doubtless has a wide range over the eastern United States. The causal fungus, Physalospora Cydonia, is very common, infesting dead bark of many woody plants. It readily attacks healthy bark of the pear and apple whenever an injury affords entrance. In this connection it has been suspected as the cause of the failure of grafts, killing the end of the stock in which the scions are set. This type of trouble, while itself not common, illustrates what a wound parasite like P. Cydonice is capable of doing. (For fuller discussion see Apple, page 45.)