CENANGIUM. 117 



guttulate, at length 1-septate, sometimes tinged brown at 

 maturity, 15-20 X 4-5 p.; paraphyses septate, becoming gra- 

 dually thicker upwards, tip yellowish-brown, 56 p. thick. 



Dermatea cerasi, De Notaris, Disc., p. 18 ; Phil., Brit. Disc., 

 p. 341; Sacc., Syll., viii. 2268; Eehm, Krypt.-Flora, Disc., 

 p. 247. 



Peziza cerasi, Pers., Teut. Meth. Disp. Fung., p. 35. 



Pycnidia. Mixed with the ascophores or separate, conical, 

 leathery, externally scurfy, dehiscing by a minute apical 

 pore ; stylospores hyaline, cylindric-fusiform, wavy, up to 

 50 ^ long, apical on slender sterigmata. 



Micropera drupacearum, Lev., Ann. Sci. Nat., iii. vol. v. 

 p. 283. 



Spermogonia. Smaller than the pycnidia ; spermatia 

 filiform, curved, 13-16 p.; sterigmata very slender, short, 

 branched. 



Sphaeria dubia, Pers., Ic. Pict., iv. p. 4, pi. 20, t 1. 



On dry branches of bird cherry (Cerasus avium). 



Specimen named by Persoon examined ; also specimens 

 from Cooke, Fung. Brit., exs., ed. ii., n. 659, and Kehm, 

 Ascom., n. 421. 



Cenangium dryinum. Mass. 



Usually caespitose in small clusters, or in lines, rarely 

 solitary, erumpent, sessile and fixed by a small central point, 

 subglobose and closed at first, then becoming plane or 

 slightly convex, marginate or not, yellowish-red, dingy 

 ochraceous when dry, about 1 mm. across, externally, and 

 the disc very minutely pulverulent ; excipulum composed of 

 parallel septate hyphae, these become free from each other, 

 broader, and more closely septate at the periphery, yellowish ; 

 asci clavate, pedicel rather long and narrowed, thick walled, 

 8-spored; spores irregularly 2-seriate above, elliptic-oblong, 

 usually slightly curved, hyaline, contents often granular, 

 continuous, 25-30 x 7-9 p. ; paraphyses slender, tips clavate 

 or capitate, up to 6-7 p. across, yellow-brown, septate ; 

 hypothecium yellow. 



Dermatia dryina, Cke., Grev., vii. p. 62 (name only) ; in 

 Phil., Brit. Disc., p. 340. 



Pezicula dryina, Sacc., Syll., viii. n. 1302. 



On oak bark. 



