186 



Mycologia 



perithecia nearly globose, dull red, very rough externally with 

 coarse granules, 250-300 mic. in diameter; asci cylindrical to 

 clavate, 8-spored, 50-65 X 5-6 mic. ; spores 2-seriate, i-septate, 

 elliptical, with ends obtuse, straight or a little curved, usually 

 not constricted, 12-16 X 4 mic. 



On dead branches of Morus, Sassafras and Melia. 



Type locality: Pennsylvania. 



Distribution : Delaware to N. Dakota and Alabama. 

 Illustrations: Ellis & Everh. N. Am. Pyrenom. pi. 12, f. 

 13-19- 



Exsiccati : Ellis & Everhart, N. Am. Fungi, 2371. Other 

 specimens examined : Alabama, Little; Connecticut, Thaxter; 

 Delaware, Commons; N. Jersey, Ellis; N. Dakota, Seaver; Penn- 

 sylvania, Schweinitz (type) ; S. Carolina, Ravenel. 



Distinguished from C. purpurea (L.) Seaver only by the de- 

 pressed stroma. 



3. Creonectria atrofusca (Schw.) 

 Sphaeria atrofusca Schw. Trans. Am. Phil. Soc. II. 4: 206. 1832. 

 Nectria atrofusca Ellis & Everh. Jour. Myc. 1: 140. 1885. 



Stroma fleshy or subfleshy, rather dark colored, erumpent but 

 not rising much above the surface of the bark; perithecia in 

 cespitose clusters on the stroma, clusters variable in size, aver- 

 aging 1-2 mm., dark colored, nearly black in dried specimens, 

 brownish-black with transmitted light, small mostly less than 200 

 mic. in diameter, subglobose with a prominent papilliform ostio- 

 lum, mostly collapsing when dry ; asci subcylindrical, 45-50 X 7 

 mic, 8-spored; spores partially 2-seriate above, 1 -seriate below, 

 hyaline, i-septate, slightly constricted at the septum, subfusoid 

 with the ends slightly narrowed. 



On dead branches of Staphylea trifolia. 



Type locality : Pennsylvania. 



Distribution : Pennsylvania. 



Exsiccati: Ellis, N. Am. Fungi, 1547. Other specimens ex- 

 amined: Pennsylvania, Schweinitz (type). 



The species is distinguished by its host as well as the very dark 

 colored perithecia. 



4. Creonectria Coryli (Fuckel) 

 Nectria Coryli Fuckel, Symb. Myc. 180. 1869. 

 Chilonectria Coryli Ellis & Everh. N. Am. Pyrenom. 116. 1892. 



