296 FUNGUS-FLOKA. 



except a short torn margin; spores elliptical, smooth., 

 10-12 X 6-7 p ; cystidia large, elliptical, rare. 



Agaricus gloiocephalus, Decand., Fl. Fr., vi. p. 52. 



Agaricus (Volvaria) gloiocephala, Cke., Hdbk., p. 113 ; Cke.., 

 Illustr., pi. 298. 



On the ground. 



Distinguished by the smoky, glutinous pileus. The 

 measurement of the spores, as given by Saccardo (19 x 9), is 

 certainly too large, and is probably an uncorrected error. 



Volvaria parvula. Fr. 



Pileus J-l in. across, slightly fleshy, conical then campanu- 

 late, at length plane and umbonate, dry, silky, white, umbo 

 generally darker; gills free, crowded, clear pale flesh-colour; 

 stem stuffed with a distinct pith, becoming hollow, 11^ in. 

 long, 12 lines thick, equal, silky, white, base villous ; volva 

 minute but lax, usually regularly 3-4-partite ; spores broadly 

 elliptical, smooth, 5 x 3 5 p ; no cystidea. 



Agaricus parvulus, Fries, Epicr., p. 139 ; Cke., Hdbk., p. 114 ; 

 Cke., Illustr., pi. 300e. 



In gardens and greenhouses. 



Gregarious ; smaller than V. media. 



Var. biloba. Entirely white when young, gills becoming 

 whitish flesh-colour ; stem stuffed, never fistulose, 1 in. long, 

 1 line thick, equal, pubescent, sheathed with a bilobed volva 

 that is externally adpressedly silky. Pileus conical when 

 young, 3-4 lines high, dry, and sometimes floccosely- 

 squanmlose. 



Volvaria media. Schum. 



Pileus 1-2 in. across, flesh thin except at the disc, white; 

 campanulato-convex, then almost plane, umbonate, or obtuse-, 

 viscid, white, the disc usually tinged brownish, silky when 

 dry ; gills free, about 2 lines broad, slightly ventricose, pale 

 salmon-colour ; stem 2-3 in. long, about 2-3 lines thick, 

 equal, glabrous, white, solid; volva sheathing, margin lobed, 

 tinged brownish ; spores broadly elliptical, smooth, 5 X 3 5 //. ; 

 cystidia absent. 



Agaricus medius, Schum., Saell., p. 248. 



Agaricus (Volvaria) medius, Cke., Hdbk., p. 114; Cke., 

 Illustr., pi. 299. 



