132 BRITISH DISCOMYCETES. 



and lemon -colour; externally, as well as the tumid margin, 

 pallid ; asci cylindraceo-clavate ; sporidia 8, fusiform, 

 straight or curved, 2 to 3-guttulate, 12 — 17 X 3 — 4 - 5/x; 

 paraphyses filiform, slender, sometimes branched. 



Peziza sulphurata — Schum., " SaelL," p. 4 "2 8 ; " Flo. 

 Dan.," t. 1915, f. 2 ; Fries, " Sys. Myco.," ii. p. 72 ; Peziza 

 thejocroa — Pers., " Myco. Eur.," p. 296 ; " Scott. Nat.," 

 vi. 122. 



On the ground in pine woods; on fallen leaves of 

 pine. Autumn. 



Cups J to 2 lines broad ; gregarious, at first slightly 

 floccose; the stem is short, not unfrequently absent. 

 The sporidia are nearly pointed at the extremities. 



Name — Sulphuratus, dressed with brimstone; from 

 its colour. 



Cawdor, N.B. ! 



18. Helotium immutabile. Fckl. 



Epiphyllous, of a pale unchangeable yellow; the cups 

 are scattered, and sessile or attenuated into a very short 

 concolorus stem, plane, acutely margined, orbicular or 

 slightly repand ; asci clavate ; sporidia 8, obliquely uni- 

 seriate, oblong-ovate, straight, continuous, hyaline, 

 11 — 12 X 3 — Dfx ; paraphyses filiform. 



Helotium immutabile — Fckl., " Symb. Myco.," nacht. 

 i. p. 50. 



Exs.— " F. Rh," No. 2388. 



On fallen leaves of Populus tremula. 



Cups 1 to 1*5 lines broad. Distinguished from H. 

 epiphyllum not only by the constancy of the colour, 

 but also the smaller and differently shaped asci and 

 sporidia. 



Name — Immutabi lis, unchangeable. 



Near Shrewsbury ! 



19. Helotium phyllophilum. (Desm.) 



Cup plano-concave, becoming convex, glabrous, 

 hyaline-white or yellowish white ; stem short, or nearly 



