AIOLLISIA 211 



On fallen petioles of Juglans regia. 

 Type locality: New Jerse>-. 



Distribution: Known onl>' from the type locality. 

 ExsiCCATi: Ellis, N. Am. Fungi 849. 



When dry its presence is indicated onh' by a narrow slit in 

 the epidermis, hence the name. 



27. Mollisia Oenotherae (Cooke & Ellis) Seaver, comb. nov. 



Dacryomyces Lythri Desm. PI. Crypt. Fr. J545. 1846. 

 Peziza Oenotherae Cooke & Ellis, Grevillea 6: 90. 1878. 

 Sphaeronema corneum Cooke & Ellis, Grevillea 6: 84. 1878. 

 Cloeosporium ? tremellinum Sacc. Michelia 2: 168. 1880. 

 Cloeosporium ? rhoinum Sacc. Fungi Ital./. 1035. 1881. 

 Hainesia rhoina Ellis & Sacc. in Sacc. Syll. Fung. 3: 699. 1884. 

 Pezizella Oenotherae Sacc. Syll. Fung. 8: 278. 1889. 

 Tubercularia Rhois Halsted, Bull. Torrey Club 20: 251. 1893. 

 PateUina Fragariae Stevens & Peterson, Phytopathology 6: 264. 1916. 

 Sporonerna pulvinatnm Shear, Bull. Torrey Club 34: 308. 1907. 

 Pezizella Lythri Shear & Dodge, Mycologia 13: 161. 1921. 



Apothecia scattered, with a short, stem-like base, externally 

 light-brown to amber, .5-1 mm. in diameter; hymenium nearly 

 plane, whitish especially when moist; asci cylindric, or clavate, 

 reaching a length of 55-70 ^ and a diameter of 7-8 /x, 8-spored; 

 spores straight, or slightly curved, 1 -seriate, or often becoming 

 2-seriate, often enlarged at one end, 2 X 8 ^t; paraphyses filiform, 

 branched, scarcely enlarged above, 1-1.5 /x in diameter. 



On dead spots on living or dead leaves, petioles and stems of 

 Oenothera and a larger variety of other hosts. 



Type locality: New Jersey. 



Distribution: Widely distributed in North America; also 

 in Europe. 



Illustrations: Mycologia 13: 146,/. 1.; 148,/. 2.; 149, f. 3; 

 150,/. 4; 151,/. 5; pi. 8-10; Phytopathology 6: 267,/. 19-26. 



ExsiccATi: Ellis, N. Am. Fungi 733, 846; Ellis «& Ev. N. Am. 

 Fungi 2074, 2278; Fungi Columb. 244, 287; Seym. & Earle, 

 Ecom. Fungi 273. 



For a complete discussion of this species, its synonymy, 

 morphology and hosts see Mycologia 13: 135-170. 



28. Mollisia atriella (Cooke) Sacc. Syll. Fung. 8: 352. 1889. 



Peziza atriella Cooke, Hedwigia 14: 83. 1875. 



Apothecia gregarious, sessile, soft-waxy, .2 mm. in diameter, 

 at first hemispherical, then expanded, smooth, black; h\menium 



