88 Wisconsin Academy of Sciences, Arts, and Letters. 



authentic specimen of this species. The specimens which I have 

 referred here have depressed-globose pyenidia 40-60/i in di- 

 ameter with a round apical pore which is surrounded by a thick 

 black ring. The long-fusoid sporules are 7 — septate, 40-60x 

 3y 2 -5/t. 



Septoria andropogonis, n. sp. Causing narrow elongated 

 areas of a reddish-yellow color sometimes becoming sordid ; 

 pyenidia epiphyllous, subseriate or scattered, dark brown, de- 

 pressed globose, little prominent, 75-100/a; sporules hyaline, 

 straight or slightly curved, more acute at one end, becoming 2-4: 

 septate, 30-50x2-3^. On leaves of Andropogon furcatus, Gas- 

 lyn, Burnett Co. July 31, 1911. 



Septoria polita n. sp. Pyenidia scattered, globose, innate, 

 black, ostiolate, 65-1 00/x; sporules hyaline, straight or somewhat 

 curved, truncate to obtusely rounded at each end, becoming 3-5 

 septate, 35-50x2 1 /2-3/x. On Car ex sp. indet. (stcllulata?) Gas- 

 lyn, Wisconsin, Aug. 4, 1911. This attacks the distal portion 

 of the very narrow leaves of the host which becomes sere. The 

 sporules have a very smooth or polished appearance and are not 

 at all constricted at the septa. 



Septoria carpinea (Schw. ?) n. comb. Spots subcircular 

 to angular, numerous, reddish brown becoming sordid in the 

 center, somewhat paler below, 1-5 mm. in diameter; pyenidia 

 epiphyllous, few, scattered, prominent, black, globose, ostiolate, 

 about 65/u. ; sporules hyaline, usually curved, frequently arcuate, 

 pluriguttulatc, 25-40x2-3/*. On Carpinus caroliniana, Gaslyn, 

 Wisconsin, Aug. 8, 1911. It seems quite possible that this is the 

 fungus called Xyloma by Schweinitz and Depazea by Fries. 



Septoria Polymnitte Ell. & Evht. The specimens on Polym- 

 nia canadensis, collected near Somers in 1903, which I hes- 

 itatingly refer to this species show suborbicular spots M> _ 1 cm. in 

 diameter which become brown above, darker toward the margin. 

 The pyenidia correspond with those of this species. My notes 

 of the size of the sporules read 40-45x1^-2/*. 



Sacidium microspermum (Pk.) n. comb. (Septoria micro- 

 sperma Pk.) On fallen leaf of Betula alba papyrifera. But- 

 ternut, Oct. 8, 1911. Hypophyllous on indefinite brown areas 

 which show a tendency to extend along the veins; basidia and 



