278 BRITISH DISCOMYCETES. 



Cups 300 to SOO^u broad. Forming a continuous layer 

 on chips, in damp places. The tapesium becomes yellow 

 on drying. " Crowded ; when young concave, then 

 expanded." I have examined original specimens of P. 

 chaveticB in Mad. Libert, exs., and find them to correspond 

 exactly with P. ccesia. 



Name Ccesius, sky- coloured ; greyish-blue. 



Appin (Captain Carmichael). Holme Lacy and 

 Whitfield, near Hereford ! near Shrewsbury ! Grantown, 

 N.B. ! (Rev. Dr. Keith). 



2. Tapesia eriobasis. (Berk.) 



Gregarious, but generally distinct; cups orbicular, 

 tomentose, fixed to little, round, snow-white, cottony 

 spots, which are sometimes confluent ; when fresh white, 

 when dry the hymenium has a yellowish tinge ; asci 

 slightly clavate or obtusely lanceolate ; sporidia oblong, 

 -0002 to -00025 inch long (5 to 5'5/i) (Berk.). 



Peziza eriobasis Berk., "Ann. Nat. Hist./' No. 312; 

 Cooke, " Handbk," No. 2070. 



On smooth inner surface of bark. 



Differs from P. ccesia and P. chavetice in its larger 

 cups, pale disc, and several other points. The cups are 

 sometimes extremely thin, crowded, and pressed very 

 close to the matrix, but this is not usually the case (B. 

 and Br.). 



Name tptov, wool, /3aa*g, a base ; from the woolly 

 carpet. 



3. Tapesia mutabilis. (B. and Br.) 



Minute, at first presenting little brown villous specks 

 from which the cups burst ; cups scattered ; externally 

 brown, hemispherical, villous, becoming smooth and 

 dirty-white ; asci clavate ; sporidia 8, fusiform, biguttu- 

 late, endochrome sometimes restricted to either extremity, 

 13 18 X 2 4tfji ; paraphyses slenderly filiform. 



Peziza mutabilis B. and Br., " Ann. Nat. Hist.," No. 

 564 ; Cooke, " Handbk," No. 2072. 



On leaves of Aira ccespitosa. 



