Fairman : Ascomycetes from New Mexico 243 



DlDYMELLA NIGRIFICANS Karst. 



On old branches of Rosa (14761). 



Didymella Eurotiae sp. nov. 



Perithecia scattered or gregarious, at first covered by the epi- 

 dermis, becoming erumpent, finally adnate-superficial, globose, 

 with minute papilliform ostiola, .3-3.5 mm. in diam., dull black ; 

 asci clavate-cylindric, rounded at the apices, long-stipitate, 8- 

 spored, 133 X 10/*; spores oblong-fusoid, uniseptate, slightly 

 constricted at the septum, obliquely uniseriate, each cell with a 

 large nucleus, hyaline, 20-23 X 6—7 /x. 



On old branchlets of Eurotia lanata (Pursh) Moq. (14791 

 p.p.). 



A Pleospora and a Phoma in small quantities are associated 

 with the above. 



Apiosporella cornina sp. nov. 



Perithecia scattered or gregrarious, depressed-globose or 

 markedly flattened, at first covered by a thin layer of the epi- 

 dermis, suberumpent, elevating the epidermis in minute pustules, 

 black, 200-250 /x in diam.; asci clavate-cylindric, short-stipitate, 

 rounded at the apex, 8-spored, 40-50 X 13-15/*, surrounded by 

 filiform paraphyses ; spores irregularly biseriate, oblong-obo- 

 vate, subrotund at the ends, uniseptate, the septum being formed 

 about one third the way up from the base, not constricted, the 

 upper cell twice as large as the lower, hyaline then golden-yellow, 

 20-23.33 X 6.66-7 n. 



Differs from Apiospora sepincoliformis (DeNot.) Trav. in the 

 spores, which are larger, with a subellipsoid but not cuneiform 

 base, and with the septum formed farther from the end. In 

 the generic name the writer follows von Hohnel, who (Fragmente, 

 VIII, No. 389), referring Apiospora to the Dothideales, institutes 

 the genus Apiosporella for Apiosporae without a stroma. Be- 

 cause the spores of Apiosporella cornina become yellow at ma- 

 turity, those mycologists who do not refer to the hyaline-spored 

 sections any fungus which has a more or less decided tint to the 

 spores would, perhaps, refer our plant to Phaeoapiospora Sacc. 

 & Syd., a genus tentatively proposed in Sacc. Syll. XVI, 477. 

 But von Hohnel, loc. cit., considers the species described in the 



