HELVELLA. 17 



"Schw.," t. 21, f. 18-20; Cooke, "Mycogr.," f. 167; 

 " Grevillea," vi. p. 127 ; Quelet, " Champ./' pt. i. p. 38-4 ; 

 Gill., " Champ./' p. 11, c. i. Helvetia nigrescens Pers., 

 "Syn. Fung./' p. 617; " Obs. Myco./' i. 71. Elveta atra 

 "Flo. Dan.," t. 534, f. 1. 



Exs. Rabh., "Fung. Eur.," 236 ; Fckl, F. Rh," 123S. 



In moist woods. Summer and autumn. 



Solitary, small, similar to H. infula. Stem 1 to 2 

 inches long, 1 to 2 lines thick, somewhat terete, even or 

 irregularly lacunose, black, olivaceo-cinereous at the 

 base. Pileus deflexed even from the first, not pezizoide 

 (as in H. Pezizoides}, compressed, margin forming two 

 lobes, even, becoming slightly repand underneath, and 

 when dry approaching an ashy grey (Fries, I. c.). 



Name Ater, black ; from the black pileus. 



Aviemor, Loch Killein, and Loch Laggan, Scotland 

 (Dr. B. White). 



10. Helvetia pulla. Holms. 



Pileus deflexed, free, lobed, undulated, fuliginous, 

 underneath and also the middle of the stem nearly 

 naked ; asci cylindrical ; sporidia 8, broadly elliptic, 

 16 18 X 13^; paraphyses thickened above. 



Helvetia pulla Holms., t. 26 ; Fries, " Sys. Myco./' 

 ii. 20; Cooke, " Mycogr.," fig. 338. H. cinereaVill 

 "Delph.," p. 1045. Fungoides pullum Mich., "Gen.," 

 t. 86, f. 9. 



On moist ground in woods ; sometimes on old rotting 

 trunks of trees. Summer and autumn. Esculent (?). 



Medium size. Stem 2 inches long or a little more, 

 terete, somewhat undulated, stuffed, but at length as 

 usual fistulose, fuliginous, base often irregularly lacunose. 

 Pileus 1 to 1J inches broad, lobes deflexed, kidney- 

 shaped, broadly emarginate, when young even, com- 

 pressed ; at length inflated and more undulated than 

 most of the Pezizoidece (Fries, I. c.). 



Name Pullus, blackish ; from the blackish pileus. 



King's Lynn ! (Mr. C. B. Plowright). 



c 



