278 BRITISH DISCOMYCETES. 
Cups 300 to 500u 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. 
chavetice in Mad. Libert. exs., and find them to correspond 
exactly with P. ccsia. ; 
Name—Cesius, 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 5'5u) (Berk.). 
Peziza eriobasis—Berk., “ Ann. Nat. Hist.,” No. 312; 
Cooke, “ Handbk.,” No. 2070. 
On smooth inner surface of bark. 
Differs from P. cwsia and P. chavetie 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—piov, wool, Bdoig, 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—4u; paraphyses slenderly filiform. 
Peziza mutabilis—B. and Br., “ Ann. Nat. Hist.,” No. 
564; Cooke, “Handbk.,” No. 2072. 
On leaves of Aira caspitosa. 
