Seaver: Hypocreales of North America 79 



On the hymenium of Coriolus versicolor. 

 Type locality : New York. 



Distribution : N. York to N, Jersey and N. Dakota. 



ExsiccATi : Ellis & Everh., N. Am. Fungi IP46; N. Dakota 

 Fungi 8; Wilson & Seaver, Ascom. & Lower Fungi 55. Other 

 specimens examined: Canada, Macoun; N. Dakota, Seaver (va- 

 rious collections) ; N. York, Peck (type) ; N. Jersey, Ellis. 



9. Hypomyces citrinellus (Ellis) 

 Hypocrea citrinella Ellis, Bull. Torrey Club 6: 108. 1876. 



Stromata subpatellate, gregarious or scattered, small, 1-2 mm. 

 in diameter, fleshy or subfleshy, pale lemon-yellow, upper surface 

 punctate with the protruding necks of the perithecia, becoming 

 wrinkled in drying; asci cylindrical, 8-spored ; spores i-seriate, 

 strongly overlapping, fusiform with the ends acute, i-septate, 

 strongly constricted at the septum, 18-20 X 4 mic, showing a 

 tendency to become disjuncted at the septum, especially when 

 removed from the ascus {pi. 21, f. 14). 



On dead bark of Vaccinium. 



Type locality: N. Jersey. 



Distribution : Known only from type locality. 



Illustrations: Ellis & Everh. N. Am. Pyrenom. pi. 11, f. 

 4, 5- 



Specimens examined: N. Jersey, Ellis (type). 



The stromata of this species are subpatellate and resemble very 

 closely those of some of the common species of Hypocrea. This 

 together with the fact that the spores sometimes break apart at 

 the septum doubtless explains the reason for the species having 

 been placed in the genus Hypocrea by Mr. Ellis. The spores are 

 exactly those of a Hypomyces and since the stromata in this 

 genus vary from cottony to fleshy we can scarcely do otherwise 

 than to include the species with this genus. Mr. Ellis in a later 

 description states :* In the original description, the true charac- 

 ter of the sporidia was overlooked, the specimens first found being 

 rather old and the cells of the sporidia separated." He does not 

 however remove it from the genus in which it was originally 

 placed. 



* Ellis & Everh. N. Am. Pyrenom. 87. 1892. 



