Seaver: Hypocreales of North America 61 



15. Nectria conigena Ellis & Everh. Bull Torrey 

 Club 10: 77. 1883 

 Dialonectria filicina Cooke & Hark. Grevillea 12: 101. 1884. 

 Nectria filicina Sacc. Syll. Fung. 9: 963. 1891. 



Perithecia scattered or gregarious, often subcespitose, nearly 

 globose with a minute ostiolum, smooth, orange, becoming pale 

 yellow with age, entire or collapsing with age ; asci clavate, 8- 

 spored; spores partially 2-seriate or irregularly crowded, fusoid, 

 i-septate, slightly constricted, granular within, 8-10 X 3-4 m i c - 

 (pi. 4. f. 8; pi. 5. /. 1 5 , 16). 



On hard materials, stipe of tree fern, cone of Magnolia, shell of 

 buckeye. 



Type locality: Newfield, New Jersey. 



Distribution : New Jersey to Ohio and California. 



Specimens examined: New Jersey, Ellis (type) ; Ohio, Mor- 

 gan; California Harkness (probably cotype of Nectria filicina 

 Cooke & Hark.) Sacc. 



Distinguished by the pale perithecia and small spores. 



Aside from some comparatively slight variations in perithecia 

 I can discover no character by which to distinguish Nectria fili- 

 cina (Cooke & Hark.) Sacc. from Nectria conigena Ellis & 

 Everh., although there seems to be a wide difference in the habitat 

 of the two species. In the former the perithecia are mostly 

 entire while in the latter they are partly collapsed. This differ- 

 ence however might be due to age since in both cases they show 

 some tendency to collapse. The spores of the two forms are 

 identical, as is shown from the accompanying drawing which was 

 made with the aid of the camera lucida. 



16. Nectria consors (Ellis & Everh.) 

 Dialonectria consors Ellis & Everh. Jour. Myc. 4: 122. 1888. 

 Nectriella consors Sacc. Syll. Fung. 9: 941. 1891. 



Perithecia subconical, tapering above into an acute ostiolum, 

 scarlet, minute, 125-150 mic. in diameter, clothed with bristle- 

 like, obtusely pointed, septate, reddish hairs, except the ostiolum ; 

 asci clavate, 8-spored, 50 X 6-7 mic. ; spores 2-seriate, fusoid, 

 hyaline, i-septate, 7-10 X 2-3 mic. 



On dead stems of Polygonum. 



Type locality : St. Martinsville, La. 



