166 BRITISH DISCOMYCETES. 



Helotium pruinosum — Jerd, B. and Br., " Ann. Nat. 

 Hist.," No. 1174, t. 5, £ 33; Cooke, "Handbk.," No. 

 2154. 



Exs.— Cooke, "Fung. Brit.," No. 575; ed. ii. 390; 

 Phil, "Elv. Brit," No. 89; Rabh., " Fung. Eur," 1514; 

 Roumg, " Fung. Gal," 2771. 



On Hypoxylon fuscum and Diatrype stigma ; on dead 

 wood. Autumn. 



Cup about J a line broad. The hymenium is often 

 bluish, and nearly always chalky. 



Name — Pruina, hoar-frost ; from the hoary disc. 



Derbyshire (Mr. J. Kenny). Leigh Woods, near 

 Bristol (Mr. C. Bucknall). Near Shrewsbury ! Llany- 

 blodwell, Oswestry ! 



(b) Sporidia fusiform or oblong -fusiform. 

 (a) On herbaceous stems or twigs. 

 26. Helotium herbarum. (Pers.) 



Cup very shortly stipitate or sessile, plane or convex, 

 firm, white ; stem extremely short or absent ; asci cylin- 

 draceo-clavate ; sporidia 8, fusiform or oblong-fusiform, 

 2 to 3-guttulate, becoming pseudo-uniseptate, 12 — 

 15 X 2 — 4/x; paraphyses filiform, slender. 



Helotium herbarum (Pers.) — Fries, " Summa Veg. 

 Scan," p. 356; Berk, "OutL/'p. 372; Cooke, " Handbk," 

 No. 2156; Fckl., " Symb. Myco," p. 316; Gill, " Champ," 

 p. 162, c. i. Peziza herbarum — Fries, " Sys. Myco," ii. 

 p. 136; "Eng. Flo," v. p. 204; Karst, "Pez. et Ascob," 

 p. 34; "Mon. Pez," 146 ; Nyl, " Pez. Fenn," p. 45. 



Exs.— Desm., "Crypt. Fr," ed. i. 603; ed. ii. 568; 

 Rabh., "Herb. Myco," ed. ii. 227; Karst, "Fung. Fenn," 

 81; Fckl, "F. Rh," 1147; Phil., "Elv. Brit," 87; 

 Cooke, " Fung. Brit," ser. ii. 391 ; Roumg., M Fung. 

 Gal," 451. 



On dead herbaceous stems in moist woods. Autumn. 



Name — Herba, an herb ; on herbs. 



Forres (Rev. Dr. Keith). Rose Hill, near Shrewsbury ! 

 Wrekin, Salop ! 



