Butters: LIST OF MINNESOTA XYLARIACE. 567 
16. Hypoxylon serpens (PErs.) Fries, Summa Veg. Scand., 
Ds 304. 1640. 
St. Louis, July 1886, Holway 265, on Populus. 
17. Daldinia tuberosa (Scop.) Voss. Myc. Carn. 180. 1891. 
(D. concentrica (Bouit.) C. & N.) Schema di Classifica- 
zione degli Sferiacei Italici aschigeri, Comment. Soc. Crit- 
fom. Tal., 0. 0p. 198s) 5863. 
St. Louis, July 1886, Holway 256; Ramsey, September 
1889, Sheldon, 18; Ramsey, May 1890, Sheldon 4340; 
Hennepin, April 1891, Sheldon 4191; Blue Earth, June 
1891, Sheldon 408; Crow Wing, June 1892, Sheldon 
2186; Hennepin, August 1893, Sheldon 5590; Henne- 
pin, September 1893, Sheldon 5695; Cass, July 1893, 
Anderson 521; Cass, September 1898, MacMillan & Free- 
man 108; Wright, May 1900, Freeman 650; Wright, 
May 1goo, Freeman, 654; Chisago, September 1900, 
Butters 85; Hennepin, September 1900, Butters 71; Hen- 
nepin, September 1900, Butters 73. 
Conidial stage. 
Waseca, July 1891, Taylor 670; Chisago, September 1900, 
Butters 87 ; Hennepin, October 1900, Butters 62. 
18. Daldinia vernicosa (Scuw.) CresatTr & bE Nortaris, 
Schema di classificazione degli Sferiacei Italici aschigeri, 
Comment. Soc. Crittog. Ital. I, p. 198. 1863. 
Ramsey, May 1890, Sheldon; Chisago, September 1900, 
Butters 86; Hennepin, October 1900, Butters 55 ; Henne- 
pin, October 1900, Butters 88. 
19. Xylaria clavata (Scop.) Scuranck, Baierische Flora, II., 
p- 566. 1789. (Ayvlaria polymorpha (Pers.) Greville.) 
Hennepin, April 1891, Sheldon 4170; Hennepin, April 1891, 
Sheldon 4182; Hennepin, August 1893, Sheidon 5581; 
» Sheldon 613874; Hennepin, July 1899, Butters; 
Hennepin, September 1900, Freeman 784. 
