HIATULA. 231 



crenulate, becoming wliite; 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 {ArmUlaria) 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 Hi/])ho~ 

 toma fasciculaia. 



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 tawn}'- 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, squamuloso 

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

 8 X 5 ft. 



Agaricus (^Armillaria) Jasonis, Cke. & Mass., Grev., xvi. 

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



On stumps. 



Resembling in habit and appearance, several species ot 

 PJwUota, 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 Lejpiota 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 Coprinus, near to which it was at 

 one time placed by Fries. 



Hiatula Wynniae. B. & Br. 

 Pileus |— 1^ in. across, exceedingly thin, campanulate then 



