358 The North American Cup-Fungi 



7. Dermea Ariae (Pcrs.) Tul.; Karst. Myc. Fenn. 1: 224. 1871. 



Peziza Ariae Pers. Myc. Eu. 1: 325. 1822. 



Tympanis Ariae Fries, Syst. Myc. 2: 175. 1822. 



Sphaeria Cotoneastri Fries in Kunze & Schm. Myk. Hefte 2: 46. 1823. 



Sphaeria Cotoneastri Sorbi Fries, Syst. Myc. 2: 494. 1823. 



Tympanis inconstans Fries, Summa Veg. Scand. 400. 1849. 



Cenangium Ariae Tul. Ann. Sci. Nat. III. 20: 136. 1853. 



Cenangium inconstans Fuckel, Symb. Myc. 268. 1869. 



Sphaeronema pallidum Peck, Ann. Rep. N. Y. State Mus. 25: 85. 1873. 



Cenangium subnitidum Cooke & Phil!.; Cooke, Greviliea 3: 186. 1875. 



Micropcra Sorbi Sacc. Michelia 2: 628. 1882. 



Micropera Cotoneastri Sacc. Syll. Fung. 3: 605. 1884. 



Phaeangella subnitida Massee, Brit. Fungus. -Fl. 4: 137. 1895. 



Conidial fruiting bodies erumpent, usually single, occasionally 

 two or three together, bluntly conical, about .25-.35 mm. in 

 diameter and .25-.5 mm. high, reddish-brown to olivaceous, or 

 black, horny, becoming softer when moist, containing a single 

 ovoid cavity; conidiophores hyaline, cylindric, simple, or 

 branched, attenuated at the tips, 1.5-2 X 20 40 ix; conidia hya- 

 line to pale yellowish-green, fusiform, sickle-shaped, or occasion- 

 ally almost straight, ends pointed, simple, or 1-septate, 2-4 X 

 15-25 ju; microconidia not observed. 



Apothecia erumpent, single, or in clusters of two to four, 

 circular to undulated, sessile, narrowed below, .4-1 mm. in diam- 

 eter, .2-.4 mm. high, dark reddish-brown to black, leathery to 

 horny, softer when moist; hymenium concave to plane, black; 

 asci cylindric-clavate, narrowed into a short stalk, 8-spored, 

 reaching a length of 70-100 ^ and a diameter of 8-10 /x; spores 

 ellipsoid-fusoid, hyaline to pale-yellowish, simple, or becoming 

 1-3-septate, straight, or slightly curved, irregularly 2-seriate, 

 3-5 X 12-18 IX] paraphyses hyaline, filiform, simple, or branched, 

 1.5-2.5 IX in diameter, the tips swollen to 5 ^t and glued together 

 forming a yellowish epithecium. 



On various species of Sorbus. 



Type locality: Europe. 



Distribution: Quebec to Ontario, Canada; also in Europe. 



Illustrations: Mycologia 38: 379,/. 22, 23; 383,/. 34; 398, 

 f.53. 



ExsiCCATi: Ellis & Ev. Fungi Columb. 571 (conidia only). 



