PHACIDIACET. 



751 



Gen. 320. 



PHACIDIUM, Fr. 



Perithecmm bursting 

 irregularly in the centre, 

 by valyular teeth. — Berk. 

 OutLp.37d. 



(Fig.SoD.) 



2262. Fhacidiuxn pini. 



Schm. '' Scotch-fir 

 Phacidium." 



Erumpent, subrotund, 



truncato-disciform, black; 



perithecia with the lacini^e 



obtuse; disc dingy; spori- 



dia colourless, very long, 



multiseptate, often with a 



filiform termination. — 



Fr. S.M. ii. /). 572. A. ^- S. t 5,/ 8. Linn. Trans, xxiv. t. 25, f. 



36. Nees. f. 399. Schm. M.H. i. t. 2,/. 11 . Fries exs. no. Q2. Eng, 



Fix. p. "1^2. Till. Carp. in. p. 136. FcU.exs.no. 1095. 



On bark of Pinus sylvestris. 



Scattered, sub-innate, 1-2 lines broad, sometimes irregular, depressed, 

 smooth, at first shining, then opaque, at length broken up ; stratum under 

 the disc softer, flesh white. " Sporidia colourless, very long, multiseptate, 

 often tapering more at one end than the other, each extremity being ex- 

 tended into a filiform prolongation." 



Fig. 355. 



2263. Fhacidiuxn caxbonaceuxn. 



Phacidium." 



Fr. " Black-powdered 



Erumpent, subrotund, unequal, black, dehiscing into obtuse 

 lacinife ; disc drv, blackish. — Fr. S.M. \\.p. 57-4. Fries, exs. no. 

 210. Eng. Fix. p. 292. 



On twigs of willows. Spring. 



Gregarious, at first covered with the epidermis, subinnate, convex, black, 

 rather shining ; then depressed, opaque j laciniffi unequal] disc black, as if 

 powdered with charcoal. 



2*264. 



Phacidium vaccinii. Fr. " Bilberry Phacidium." 



Speraiogonia. — Spermatia simple, cylindrical, straight, obtuse. 



AscopHORE. — Erumpent, minute, convex, shining, rugose, 



splitting into four lacinioe ; disc sooty-black ; sporidia lanceo- 



