Seaver: Hypocreales of North America 65 



Distribution : Kansas and Missouri to Louisiana and Central 

 America. 



Specimens examined: Kansas, Kellerman & Swingle (type) ; 

 Louisiana, Langlois; Missouri (no name); Nicaragua, Central 

 America, Shimek. 



Doubtful Species 

 Hypocrca aurantio-cervina Ellis & Everh. Bull. Torrey Club 24 : 



458. 1897. 



This appears to be a Hypoxylon. 

 Hypocrea-viridi-rufa Berk. & Rav. ; Berk. Grevillea 4: 14. 1875. 



A note from Kew indicates that this is probably a Hypoxylon. 



28. Byssonectria Karst. Medd. Soc. Fauna Fl. Fenn. 6: 6. 1881 



Perithecia seated in a scant, cottony stroma, subglobose or 

 ovoid, vertically collapsing; asci cylindrical, 8-spored; spores i- 

 seriate, often overlapping, elliptical, simple or occasionally pseu- 

 doseptate. 



Type species : Byssonectria ahdiicens Karst. 



This genus is intermediate between Ncctria and Hypomyces. 

 The perithecia and spores are very similar to those of Nectria 

 while the trace of a cottony stroma suggests Hypomyces. 



Stroma white ; perithecia violaceous. i. B. violacea. 



Stroma yellow ; perithecia yellowish-brown. 2. B. chrysocoma. 



I. Byssonectria violacea (Schmidt) 



Sphaeria violacea Schmidt; Fries, Syst. Myc. 2: 441. 1822. 

 Hypomyces violaceus (Schftiidt) Tul. Ann. Sci. Nat. IV. 13: 14. 



i860. 



Stroma consisting of a thin, white mycelial growth overspread- 

 ing the substratum ; perithecia thickly scattered, globose or sub- 

 globose, smooth or only minutely roughened, vertically collapsing, 

 violaceous; asci cylindrical, 8-spored; spores i-scriate or with the 

 ends slightly overlapping, elliptical, simple, granular within, 

 6-7 X 2-3 mic. 



On Ftiligo septica. 



Type locality: Europe. 



Distribution : Maine. 



Specimens examined: Maine, Harvey. 



