•2 28 NEW YORK STATE MUSEUM 



Caeoma nitens Schw. 



Living leaves of dewberry, Rubits Canadensis. Common. June. 

 This parasitic fungus also at^-acks leaves of the blackberry and some- 

 times proves to be a great pest to the cultivator of these fruits. 



PYRENOMYCETEAE 

 PERISPORIACEAE 



Dimerosporium Collinsii {ScJnv) Thum. 



Living leaves of Juneberry. Raybrook. A parasitic fungus which 

 attacks the leaves, blackens them and causes their death. It also 

 sometimes distorts the branches. It covers the lower surface of the leaf 

 with its perithecia. 



SPHAERIACEAE 



Diatrype Stigma {Hoff?n.) Fr. 



Dead wood of deciduous trees. Common. 



Xylaria corniformis Fr. 

 Decaying wood in woods. Raybrook. August and September. 



Xylaria castorea Berk. 

 Decaying wood of sugar maple. Near Mountain View house. 



Xylaria digitata (Z.) Grev. 

 Prostrate trunks of deciduous trees. Wood's sap works. September. 



Ustulina vulgaris 7?//. 

 Decaying wood of deciduous trees. Common. 



Hypoxylon fuscum {Pers.) Fr. 



Dead trunks and branches of deciduous trees and shrubs, specially of 

 alder. Common. 



Hypoxylon cohaerens {Pers.) Fr. 

 Dead trunks and branches of beech. Common. 



Hypoxylon Morsei B. b" C. 

 Dead trunks and branches of alder. Valley of the Ausable. 



