583 



A. saprophilum, E. & E. Journ. Mycol. Ill, p. 43. 



Stroma effused, blackening the surface of the wood but not dis- 

 coloring it inside, circumscribed, forming black, subelongated, subcon- 

 fluent, indefinite spots \-\ cm. or more in extent. Perithecia mem- 

 branaceous, globose (- mm.), buried in the wood and irregularly 

 arranged in groups of 6-10 or more, with their hemispheric-conical 

 ostiola distinctly prominent and finally perforated. Sporidia elliptical, 

 pale brown, 1-2-nucleate, uniseriate, 5-6 x 2|-3 fx. Much resembles 

 A. melanotes, B. & Br., but readily distinguished by its much smaller 

 sporidia. * 



On rotten maple wood, Newfield, N. J. 



A. amplisporum, (Cke.) 



Fuckelia amplispora, Cke, Grev. XII, p. 51. 



Stroma pustulate, at first covered by the epidermis, which is 

 finally stellate-fissured, subprominent, 1-2 mm. diam. Perithecia few. 

 monostichous, 4-6 in a stroma, rather large, globose, thin-walled. 

 Asci cylindrical, short-stipitate. Sporidia uniseriate, elliptical, obtuse, 

 brown, 16x10 /i. 



On bark, probably of Quercus, United States. 



DIATRYPELLA, De Not. 



Schema Sferiac. Ital. p. 28. 



Stroma and perithecia as in Diatrype. Asci polysporous. 

 D. quercina, (Pers.) 



Sphceria quercina, Pers. Syn. p. 24. 

 Diatrype quercina, Fr. Summa Veg. Scand. p. 385. 

 Diatrypella Rousselii, De Not. Sfer. Ital. taf. 32. 

 Diatrypella quercina, Nits. Pyr. Germ. p. 71. 

 Exsicc. Cke. F. Brit. Ser. I, 242; II, 219. Desm. Plantes Crypt. Ed. I, 2052. Sacc. M. 

 Ven. 1188. Iyin. Fung. Hung. 178. Sydow, M. March. 544. 



Stromata erumpent, surrounded by the substellate-cleft, adherent 

 epidermis, pulvinate, orbicular or angular, rugulose, thick, disk plano- 

 convex, becoming black, mostly solitary, but sometimes 2-3 confluent, 

 2-4 mm. diam. Perithecia 2-15 in a stroma, in a single or double 

 layer, ovoid, or subangular from compression, \-\ mm. diam., attenu- 

 ated into rather long necks rising through the grayish-white stroma 

 with their conic-hemispherical, quadrisulcate ostiola distinctly erum- 

 pent. Asci clavate-fusoid, long-stipitate, p. sp. 80-100 x 9-10 //. Spo- 

 ridia numerous, allantoid, yellowish, strongly curved, 8-12 x 2-3 p.. 



On oak limbs, Carolina and Pennsylvania (Schw.), Alabama 

 (Berk.), on Crataegus, New York (Peck). 



