HIATULA. 231 



crenulate, becoming white; gills adnate, narrow, crowded, 

 white ; stem 2-3 in. long, about 1 line thick, whitish, pallid, 

 rufescent at the base, ring superior, rather large, spreading ; 

 spores subglobose, 5x4. 



Agaricus (Armillaria) citri, Inzenga, Sic., t. 3, f . 1 ; Cke., 

 Hdbk., p, 381 ; Cke., Illustr., pi. 1181. 



On stumps. 



Smell resembling fresh meal. Caespitose. The general 

 habit is that of a cluster of small-sized specimens of Hypko- 

 toma fasciculata. 



Armillaria Jasonis. Cke. & Mass. 



Pileus 1-2 in. across, rather fleshy, especially at the disc, 

 campanulate then expanded, with a distinct rounded umbo, 

 granularly papillate, granules innate, golden yellow, tinged 

 with tawny at the disc; margin appendiculate with the 

 fibrous veil ; gills adnate, scarcely crowded, thin, white, then 

 pallid ; stem 2-3 in. long, ^-^ in. thick, equal or a little 

 thickened below, coloured like the pileus, squamulose 

 below the distant, torn, squarrose ring; spores elliptical, 

 8 x 5 fL. 



Agaricus (Armillaria) Jasonis, Cke. & Mass., Grcv., xvi. 

 p. 77 ; Cke., Hdbk., p. 363; Cke., Illustr., pi. 955. 



On stumps. 



Resembling in habit and appearance, several species of 

 Plioliota, but with white gills and spores. 



HIATULA. Fries. 



Pileus symmetrical, very thin, without a distinct pellicle, 

 formed by the union of the backs of the gills, splitting when 

 expanded; gills almost or quite free, white; stem central; 

 spores white. 



Fries, Nov. Symb., p. 11 ; Cke., Hdbk., p. 224. 



Allied to Lepiota in the thin pileus and free gills, but 

 differing in the entire absence of a ring. Not at all deli- 

 quescent as in the genus Ooprinus, near to which it was at 

 one time placed by Fries. 



Hiatula Wynniae. B. & Br. 

 Pileus -1 i- in. across, exceedingly thin, campanulato then 



