CENANGIUM. 115 



disc dark brown, often paler with age, externally blackish, 

 somewhat wrinkled and minutely scurfy or mealy, ^-1 cm. 

 across; hypothecium and excipulum composed of hyaline, 

 densely interwoven hyphae, passing into parenclryma at the 

 cortex, which runs out into irregular groups of thick- walled, 

 brown, almost globose cells 6-8 //, diameter and forming the 

 scurfy exterior ; asci cylindric-clavate, slenderly stipitate, 

 8-spored : spores irregularly 2-seriate, hyaline, smooth, 

 continuous, cylindric-oblong, ends obtuse, straight or slightly 

 curved, 14 x 3*5-4 /x; paraphyses numerous, septate, tip 

 slightly thickened and brownish. 



Peziza j^opidnea, Pers., Teut. Disp. Meth. Fung., p. 35 

 (1797). 



Peziza fascicularis, Alb. and Schw., Consp. Fung. Nisk., 

 p. 315, t. 12, fig. 2 (1805). 



Encoelia fascicularis, Karst., Myc. Fenn., i. p. 217; Phil., 

 Brit. Disc, p. 336. 



On dead branches of poplar, ash, willow, &c. 



Distinguished from C. furfur acea by the thinner hyphae 

 of the excipulum, smaller cells of the cortex forming the 

 external scurf, larger spores, and blackish exterior of the 

 ascophore. 



Cups about 4 lines broad. Caespitose, 6 to 12 united, but 

 sometimes solitary, thin, submembranaceous, hemispherical, 

 but compressed, and margin sinuate; externally blackish, 

 coated with a fugacious meal. (Phil.) 



Specimens examined from Cooke's Fung. Brit., exs., n. 478, 

 and Benin's Ascom., n. 301. 



Cenangium pulveraceum. Fries, Syst. Myc, ii. 

 p. 181 ; Phil., Brit. Disc, p. 347 ; Eehm, Krypt.-Flora, Disc, 

 p. 228; Sacc, Syll., viii. n. 2293. 



Erumpent, caespitose or sometimes gregarious, but distinct 

 from each other, subglobose and closed at first, becoming 

 hemispherical, margin incurved and closed when dry, disc 

 pale yellow, externally blackish, but densely covered with 

 white or greyish meal, narrowed below into a short, stem- 

 like, hard base, which is blackish within, up to 1 mm. across ; 

 excipulum brownish, consisting of densely interwoven 

 hyphae ; asci clavate, pedicel slender, 8-spored ; spores irre- 

 gularly 2-seriate above, elliptic-oblong, ends obtuse, hvalinc, 



i 2 



