Seaver: Hypocreales of North America 73 



spored; spores i-seriate with the ends overlapping, fusiform with 

 an apiculus. at each end, for the most part sHghtly curved or un- 

 equal sided, septate, with the septum in the center, hyaline and 

 strongly roughened at maturity, 35-40 X 7-8 mic, oozing from 

 the perithecia and forming a white powder over the surface of the 

 stroma {pi 20, f. and pL 21, /. 7). 



Parasitic on species of Lactaria. 



Type locality : N. Carolina. 



Distribution : Maine to N. Dakota and Alabama. 



Illustrations: Ellis & Everhart, N. Am. Pyrenom. pi. 11, /. 

 12-14; Bull. N. Y. State Mus. 105 : pi. 103. 



ExsiccATi : Bartholomew ; Ellis & Everhart, Fungi Colum- 

 biani 1734; Ellis, N. Am. Fungi 467, 643; Shear, N. Y. Fungi 

 8g; Wilson & Seaver Ascom. and Lower Fungi 34. Other 

 Specimens Examined: Alabama, Earle; Maine, Murrill, 1854, 

 2040; N. York, Peck (type of H. piirpureus) ; N. Dakota, Sea- 

 ver; N. Jersey, Ellis; Ohio, Kelsey; Pennsylvania, Haines, Ever- 

 hart & Wood; S. Carolina, Ravenel, Schweinitz (type) ; Tennes- 

 see, Murrill. 



Easily distinguished by its bright orange subiculum which en- 

 tirely discolors the host. The change of color from orange to 

 purple is a noteworthy feature. 



2. Hypomyces apiculatus (Peck) 



Hypocrea apiculata Peck, Ann. Rep. N. Y. State Mus. 29 : 57. 

 1878. 



? Hypomyces xylophilus Peck, Bull. Torrey Club 11 : 28. 1884. 

 Clintoniella apiculata Sacc. Syll. Fung. 16 : 588. 1902. 



Subiculum effused, soft, subfleshy, occurring in irregular 

 patches, at first bright orange with the margin sterile and lighter, 

 color very variable in dried specimens fading to pale orange, dull 

 yellow and finally dirty whitish especially when exposed to the 

 light; perithecia thickly scattered, immersed with the necks pro- 

 truding, darker than the subiculum; asci cylindrical, 8-spored; 

 spores I -seriate with the ends overlapping, fusiform with an 

 apiculus at each end, usually a little curved, i-septate and 

 slightly constricted, hyaline, ^5-35 X 7-8 mic. becoming a little 

 rough at maturity (pi. 21, f. 8). 



On decaying leaves, wood, etc. 



