SCLERODERRIS. 127 



longer than the asci, slender, apex thickened and olive, 

 sometimes branched, very numerous. 



Phragmopliora ampkibola, Massal., Framm., p. 13. 



Tijmpanis amphibola, Karsten, Syinb. Myc, p. 252; Phil., 

 Brit. Disc, p. 352. 



On bark of Scotch fir. 



Specimens examined from Karsten, Fung. Fenn., n. 840, 

 and Saccardo, Myc. Yen., n. 1388. 



According to Phillips the spermogonia are scattered, 

 convex or subcorneal, minute; spermatia oblong, simple, 

 3-5 x 1-1*5 /x. 



Scleroderris livida. Mass. 



Gregarious or confluent, hemispherical then almost plane, 

 slightly narrowed to a very short stem-like base, or almost 

 sessile, but attached by a central point only, up to 1 mm. 

 across, disc yellowish-olive, with a buff tinge when dry, 

 margin and externally pale, very minutely scurfy ; excipulum 

 densely parenchymatous ; asci narrowly clavate, apex 

 narrowed, attenuated below into a longish, slender pedicel, 

 thick-walled, 8-spored ; spores irregularly biseriate above, 

 elliptic-oblong, ends obtuse, smooth, hyaline, at first 4- 

 guttulate, then 3-septate, straight or very slightly curved, 

 24—30 X 5-Q fx; paraphyses numerous, slender, somewhat 

 irregularly curved, often with short branchlets, in other 

 instances all simple and equal. 



Patellaria livida, B. & Br., Ann. Nat. Hist., n. 775 (1854). 



Patellaria constipata, Cke., Hdbk., n. 2176. 



Dermatea livida, Phil., Brit. Disc, p. 340. 



Durella livida, Sacc, Sj'll., viii. n. 3260. 



Dermatolla livida, Sacc, Syll., viii. n. 2027. 



On bark of firs. 



Type s]3ecimen examined. 



Scleroderris fagi. Mass. 

 Erumpent, the orbicular or elliptic groups 1 to 8 lines 

 across, splitting the epidermis ; ascophores plane or slightly 

 convex, mostly immarginate, when moist orange-yellow, 

 when dry ferruginous-yellow, pruinose, densely crowded on 

 an evident stroma ; stem when present stout, continuous 

 with the stroma ; asci broadly clavate ; spores 8, elliptic or 



