348 BRITISH DISCOMYCETES. 



Peziza pulveracea A. and S, p. 342, t. 8, f. 2 ; Pers, 

 " Myco. Eur," p. 327. Cenangium pulveraceum Fries, 

 " Sys. Myco," ii. p. 181. 



On dead stems of holly. 



Name Pulvis, dust ; powdery. 



Trefriw, North Wales ! 



C. SPORIDIA LINEAR-FUSIFORM OR FILIFORM. 



6. Cenangium fuliginosum. Fries. 



Gregarious or caespitose, crowded into broad patches, 

 sessile or subsessile, erumpent, obovate, depressed at the 

 summit and fibrillose-striate, coated with rusty powder, 

 at length opening by a lacerated mouth, naked and 

 fuliginous ; hymeriium whitish cinereous, coriaceous-mem- 

 branaceous ; asci cylindraceo-clavate ; sporidia 8, linear- 

 fusiform, acute, straight or curved, 4 to 8-septate, 50 

 70 X 2 3/z ; paraphyses filiform, sometimes branched. 



Pycnidia associated on the same stroma with the 

 above, globose, smooth, blackish, at length opening by a 

 pore at the summit ; stylospores linear-fusiform, straight 

 or curved, 3-septate, 20 30 x 2'o/m. 



Cenangium fuliginosum Fries, " Elench," ii. p. 23 ; 

 "Eng. Flo," v. p. 212 ; Tul, " Select. Fung. Carp," iii. 166, 

 t. 20, f. 1-4 ; Berk, "Outl," p. 374 ; Cooke, "Handbk," No. 

 2193. Scleroderris fuliginosa Karst, "Myco. Fenn," 

 p. 216. 



Exs. Moug, 889 ; Sommf, 191; Rabh, "Herb. Myco," 

 ed. ii. 710 ; " Fung. Eur," 938 ; Karst, " Fung. Fenn," 

 336. 



Name Fuligo, soot ; from the smoky colour. 



On branches of willow. 



Rockingham Forest (Rev. M. J. Berkeley). 



7. Cenangium seriatum. Fries. 



Gregarious or csespitose, erumpent through narrow 

 transverse cracks in the bark ; cups globoso-depressed, 

 at first closed, at length opening, horny, black, glabrous, 

 arising, in company with the pycnidia and spermogonia, 



