HELOTIUM. 165 



Peziza imberbis Bull, " Champ.," t. 467, f. 2 ; Fries, 

 "Sys. Myco.," ii. p. 136; D. C., "Flo. Fr.," ii. p. 81; 

 Cooke, "Handbk.," No. 2094. Peziza nivea Batsch, 

 "EL," p. 117, f. 59. Helotium imberbe Berk., " Outl./' 

 p. 18 ; Gill., " Champ.," p. 162. 



Exs. Fckl., No. 1148. 



On willow. 



Name Imberbis, without a beard ; without hairs, 



Mossburnford. 



B. SESSILE. 



(a) Sporidia oblong or oblong-elliptic, 

 (a) On wood. 



24. Helotium claro-flavum. (Grev.) 



Cup very shortly stipitate or sessile, plane, clear 

 yellow, glabrous ; margin raised, obtuse, sublobate ; asci 

 cylindrical ; sporidia 8, oblong or oblong-elliptic, 

 7 10 x 2 3^u ; paraphyses filiform, slender. (Plate V. 



fig. 31.) 



Peziza daro-flavaGrev., "Flo. Edin.," p. 424; 

 " Eno-. Flo.," v. p. 203. Helotium daro-flarum (Grev)- 

 Berk, " Outl. " p. 372 ; Cooke, "Handbk.," No. 2150. 



On decayed wood and branches. Autumn. 



Cups very minute, the largest not J a line broad, 

 always concave; whole plant very bright yellow; hyme- 

 nium darker (Grev.). I find the cups more frequently 

 plane. 



Name Clarus, clear, flavus, light yellow. 



Braid Hermitage, near Edinburgh (Dr. Greville). 

 Wrekin, Salop ! 



25. Helotium pruinosum. Jerd. 



Cup sessile, plane, thick, firm, marginate or im- 

 marginate, chalky white, pruinose; asci cylindraceo- 

 clavate; sporidia 8, oblong or oblong- elliptic, 3 to 

 4-guttulate, becoming 2-septate, 20 22 X 4^u ; paraphyses 

 filiform, slender. 



