566 MINNESOTA BOTANICAL STUDIES. 
Sheldon 2054, on Quercus; Hennepin, April 1891, Shel- 
don 4178, on Quercus; Dakota, July 1893, Sheldon 5201, 
on Quercus; Hennepin, May 1893, Sheldon 5426, on 
QUEKreus ; , Sheldon 6138; , sheldon 6244; on 
Quercus ; Wright, June 1900, Lyon 542, on /thus ; Chisago, 
September 1900, Lyon & Butters, on Quercus. 
10. Hypoxylon annulatum (Scuw.) Montacne, Sylloge Cryp- 
togramarum, p. 213. 1856. 
Cass, August 1893, Anderson 674, on wood. 
11. Hypoxylon marginatum BERKELEY, On a Collection of 
Fungi from Cuba. Part II., Journ. Lin. Soc., X., p: 
499. 1869. 
Dakota, July 1893, Sheldon 5194 on bark. 
12. Hypoxylon rubiginosum (Pers.) Fries, Summa Veg. 
Scand., p. 384. 1849. 
On wood. 
St. Louis, July 1886, Holway 193 (//ypoxylon ferrugineum 
Fr. Holway & Ellis), Ramsey, July 1893, Sheldon 5484; 
Wright, May 1900, Freeman 630. 
13. Hypoxylon perforatum (Scuw.) Fries, Summa Veg. 
Scand., p. 384. 1849. 
——, Sheldon 5904 %4 ; ——, Sheldon 6133. 
14. Hypoxylon epipheum BrerKELEY & Curtis, Notices of 
North American Fungi, Grevillea, IV., p. 52. 1875. 
Hypoxylon rubiginosum Ellis & Everhart, North American 
Fungi, No. 1949, not H. rubzg7nosum (Pers.) Fries. 
Hypoxylon epiphieum B. & C. 
On wood. 
Le Sueur, June 1891, Taylor 435; Brown, July 1891, 
Sheldon 1027, on Zziza; Ramsey, July 1893, Sheldon 
5503, on Acer? (young form). 
15. Hypoxylon atropurpureum (Fries) Fries, Summa Veg. 
Scand., p. 384. 1849. 
On wood. 
Le Sueur, June 1891, Sheldon 94; Brown, July 1891, 
Sheldon 1027%, on TZzlia; Ramsey, August 1893, 
Sheldon 5669; , Sheldon 5751, on Quercus; : 
Sheldon 6236. 
