72 JOURNAL OF TPIE 



August, 1889, 617. The asei are quite regularly eight-spored aud 

 larger than in tiie two following specimens. Syriiiga, Union 

 Springs, Ala., May, 1890, 1146. (Sent by Rev. J. L. Moul- 

 trie). Asci six-spored. Corylus Americanus, Blowing Rock, 

 Watauga (county, N. C, August 24, 1888, 614. Asci six-spored. 

 These specimens do not represent the variation in numbers of" 

 asf.'i in a perithecium (two to eight) nor spores in an ascus (four 

 to eight) given by Burrill (/. c). This is })rol)ably owing to 

 the small number of hosts represented. 



M. QuERCiNA (Schw.) Burrill. 



Amphigenous, sometimes entirely epiphyllous or hypophyl- 

 lous, persistent or evanescent. Perithecia generally numerous 

 aud scattered, mostly small, 80-100-130, dark brown or black. 

 Appendages eight to fifteen, from less than to three or four times 

 the diameter of the perithecium, colored at the base, rough or 

 smooth, four to five times dichotomously branched, branching 

 regular and compact, or open or sometimes quite irregular, tips 

 of mature specimens incurved, frequently an incurved tip is 

 unpaired, its mate having divided and formed a paii- of incurved 

 tips. Asci three to eight, shape and size variable, 35-50 x 60-80, 

 usually pedicellate. Spores two to eight, 20-30. 



Var. extensa, appendages three to five times diameter of the 

 peritheciun), branching regular, compact; asci three to five, 

 45-50 X 65-70. Spores four to eight, 20-25. On Quercus nigra^ 

 mostly epiphyllous. Chapel Hill, N. C, autumn, 1885, 630. 



Var. abbreviata, apj)endages about equal to diameter of the 

 perithecium, branching open ; asci three to eight, 40-50 x 60-70 ; 

 spores four to eight, 20-30. On Quercus nigra, mostly hypo- 

 phyllous, asci three to five, spores four to five, 30, Auburn, Ala., 

 December 22, 181K), 1797; Q. nigra, hypo[)hyll()us, asci four 

 to six, spores ei^jht. Chapel Hill, N. C, autumn, 1885, 631 ; 

 Q. falcata {Q. triloba 3Iichx), ami>higenous, mostly hypo- 

 phyllous, branching appendages oj)en and irregular; asci three 

 to eight, spores six to eight, 25, Chapel Hill, N. C, autumn, 

 1885, 629; Q. falcata, hypophyllous, asci four to six. Spores 

 four to eight, Columbia, S. C, October 13, 1888, 636. 



Forms intermediate and varying to M. Alni (D. C.) Winter. 



