Seaver: The Hypocreales of North America 201 



On the branches of Abies balsamea. 



Type locality: North Elba, New York. 



Distribution : New York to Minnesota and Newfoundland. 



Specimens examined : Minnesota, Arthur, Bailey & Holway; 

 Newfoundland, Waghorne ; New York, Peck. 



Distinguished by the fusiform, many-septate spores. 



On gross characters the species cannot be distinguished from 

 Scoleconectria scolecospora (Bref.) Seaver, however the habitat 

 of the two species is different and this so far as our observations 

 have gone is constant. The spore characters of the two species 

 are very different. 



From the presence of the minute spore-like bodies which often 

 obscure the true ascospores this species is also likely to be con- 

 fused with Nectria Coryli Fuckel. 



Chilonectria Rosellinii (Carest.) Sacc. may also be identical 

 with this species but in the absence of specimens it is impossible 

 to determine. 



6. Scoleconectria Atkinsonii (Rehm) 

 Calonectria Atkinsonii Rehm, Ann. Myc. 2: 178. 1904. 



Perithecia erumpent in dense clusters 1-2 mm. in diameter; 

 individual perithecia subconical, tapering into a prominent obtuse 

 ostiolum, at first densely yellow-furfuraceous with the ostiolum 

 bare and darker-colored, finally becoming bare and dark brownish- 

 black ; asci clavate with a subtruncate apex and slender stem-like 

 base, 90-100 X 15-17 mic, 8-spored ; spores fusoid or subfusi- 

 form, at first i-septate becoming 3-septate and constricted at the 

 middle septum, mostly curved, hyaline or subhyaline, 27-33 X 

 8-9 mic. ; paraphyses filiform, 3 mic. in diameter. 



On dead branches of Acer, Crataegus, Tilia, etc. 



Type locality: New York. 



Distribution : New York to Ontario, Canada. 



Exsiccati: Ellis & Everh. Fungi Columbiani, 2006 (as Calo- 

 nectria chlorinella (Cooke) Ellis & Everh.). Other specimens 

 examined: New York, Atkinson 5240 (cotype), Cooke; Ontario, 

 Canada, Dearness. 



The species was described by Ellis & Everh. N. Am. Pyrenom. 

 jjj as Calonectria chlorinella (Cooke) Ellis & Everh., with which 

 species it has often been confused. 



