HYGROPHORUS. 343 



HygropJtorua unguinosiis, Fries, Epicr., p. 332 ; Cke., Hdbk., 

 p. 304 ; Cke., Illustr., pi. 924. 



In moist woods, &c. 



Very fragile ; covered with a dense smoke-coloured gluten 

 when growing. (Fries.) 



Very fragile, inodorous, covered with gluten when growing, 

 sooty, unchangeable, stem 2-3 in long, 3 lines thick, usually 

 attenuated at base and apex, colour of the pileus. Pileus 

 slightly fleshy, covered with a tenacious gluten that falls 

 away in drops, even or slightly rivulose, about 2 in. across ; 

 gills distant, thick, up to 4 lines broad, connected by veins, 

 soft, becoming glaucous. (Fries.) 



Hygrophorus (Hygro.) nitratus. Pers. 



Fragile; smell very strong, nitrous. Pilexis 1|-2| in. 

 across, flesh thin ; campanulate then expanded and usually 

 wavy, viscid, soon dry and breaking up into minute squa- 

 mules, dingy greyish-brown ; gills adnate, soon separating 

 from the stem, broad, distant, white then glaucous ; stem 

 23 in. long, up to in. thick, unequal, more or less com- 

 pressed, polished, whitish or yellowish, imperfectly hollow; 

 spores elliptical, 8 x 5 p.. 



Hygroplwrus nitratus, Cke., Hdbk., p. 304 ; Cke., Illustr., 

 pi. 925. 



Hyfjrophorus murinacius, Pries, Epicr., p. 333. 



Agaricu8 nitratus, Persoon, Syn., p. 356. 



In pastures. 



Stature of H. coccineus, but differing altogether in colour 

 and strong nitrous smell. Stem often yellowish. 



A very distinct species, distinguished by the dingy colour, 

 and strong nitrous smell. Size and habitat very variable. 



(A). Major, stem hollow, equal, but often twisted, at 

 length more or less compressed, fragile, 2-3 in. long, 3-5 

 lines thick, externally polished, glabrous, white, composed 

 of thick, crisp fibres. Pileus scarcely fleshy, very fragile, 

 convex, obtuse, or having the centre depressed, slightly 

 viscid at first, soon flocculose then squamulose, and cracked, 

 deformed, rather wavy, becoming pale, 2 in. broad. Gills 

 broadly emarginate, very broad, up to f in., obliquely ovate, 

 distant, thick, soft, connected by veins, whitish then 

 glaucous. (B). A smaller form in sunny places among grass, 



