FUNGI. 29 



septate, fuscous hairs about G/M in diameter, carbonaceous, 

 not collapsing, ostiolum minutely papillate, inconspicuous, 

 stromatic material black, scanty, perithecia nearly free, about 

 f mm; asci cylindric-clavate, short stipitate, 80-100x14-1 6/*; 

 paraphyses abundant, thread like; ascospores obliquely 

 monostichous, oval, fuliginous, 3-septate, slightly constricted 

 at each septum, often somewhat curved, 30-35x8-10/A. 



On dead twigs of Symphoricarpus, Bob Creek, 10,500 feet, 

 June 27, n. 173, with Rosellinia parasitica and Strickeria Sym- 

 phoricarpi. The true generic position of this species is 

 somewhat doubtful. Its scanty imperfect stroma suggests 

 that it should be placed in the CucurbitariaceaB rather than 

 in Mellogramma, but the vestiture of the perithecia would 

 exclude it from Gibberidia, as that genus is now denned. 

 Since perithecial hairs are present in the nearly related 

 Gibbera, from which our species is excluded by the spore 

 characters, we prefer to widen the definition of Gibberidia 

 rather than to propose a new genus based only on the pres- 

 ence of perithecial hairs. 



OTTHIA DISTEGI^E n. sp. Densely cespitose in oval clus- 

 ters of 4 or 5 to 20 or more, on a scanty subiculum of 

 fuscous threads, breaking through the epidermis, black, 

 rugose, collapsing, ostiolum minutely papillate inconspicu- 

 ous, about mm in diameter ; asci 8-spored, clavate, sub- 

 stipitate, about lOOxlS/*; paraphyses thread-like abundant ; 

 ascospores obliquely monostichous or partly distichous, 

 oval or ovate, often curved, light fuliginous, about equally 

 uniseptate, somewhat constricted, about 25x8/t. 



On dead twigs of Distegia involucrata, Mancos, June 25, 

 in river bottoms, n. 1090. 



OTTHIA (OTTHIELLA) RIBIS n. sp. Perithecia densely 

 cespitose, erumpent, partially surrounded by the trans- 



