Seaver: Hypocreales of North America 71 



Specimens from Pennsylvania referred to this name by Mr. 

 Ellis are Pcckiella hymenii Peck. 



6. Peckiella hymenii Peck, Bull. N. Y. State Mus. ii6: 28. 



1907 



Subiculum white, overrunning the hymenium of the host and 

 obliterating the gills, sometimes interrupted, becoming yellowish 

 with age; perithecia minute, ovate, immersed with the ostiola 

 protruding, numerous, pale yellow, becoming darker with age ; 

 asci cylindrical, 8-spored ; spores i-seriate with ends overlapping, 

 fusiform but not apiculate, straight or a little curved or double 

 curved, simple, slender, 35-40 X 5 mic, oozing from the peri- 

 thecia forming minute whitish masses upon them (/>/. 21, f. 4). 



On the hymenium of species of Lactaria. 



Type locality: New York. 



Distribution : New York to Pennsylvania. 



Specimens examined: New York, Peck (type) ; Pennsylvania, 

 Everhart. 



The species is quite distinct in the slender, fusiform, non- 

 apiculate spores. 



30. Hypomyces (Fries) Tul. Ann. Sci. Nat. IV. 13: 11. i860 

 Hypomyces Fries, Syst. Orbis Veg. 105 (as possible genus). 



1825. 

 Nectria Fries, Syst. Orbis Veg. 105 (as possible genus) in part. 



1825. 

 Clintoniella (Sacc.) Rehm, Hedwigia 39: 223. 1900. 



Stroma consisting of an effused, cottony subiculum often of 

 considerable extent (rarely subpatcllate and subfleshy), occurring 

 as a parasite on fleshy fungi or more rarely on old wood, rotten 

 leaf mould and other substrata where there is no trace of other 

 fungi ; conidial phase variable, represented by species of Sepc- 

 doniiDU, Verticillium (Asterophoraf), etc.; perithecia numerous 

 usually thickly scattered and immersed in the subiculum, rarely 

 subsuperficial or with the necks more or less protruding; asci 

 cylindrical, 8-spored; spores fusoid or fusiform, usually with 

 an apiculus at each end or ends blunt, i-septate, hyaline, smooth 

 or rough. 



Type species: Sphacria Lactifluoriim Schw. 



