CORTINARIUS. 15 



II. TENUIORES. 



Pileus almost membranaceous, conical then expanded, 

 umbonate, umbo acute, rarely obtuse or indistinct (in the 

 contrary ratio in Firmiores) ; margin straight at first. Stem 

 almost equal or attenuated towards the base. 



* Stem white. 



** Stem violet or reddish. 



*** Stem yellowish, usually growing pale. 



**** Stem growing dusky. 



Subgen. HYGROCYBE. Fr. 



Firmiores. Pileus rather fleshy, margin incurved when 

 young. 



* Stem and veil white. 



Cortinarius (Hygr.) firmus. Fr. 



Pileus about 3 in. across, truly and equally fleshy as in 

 the subgenus Inoloma, convexo-plane, obtuse, firm, even, 

 glabrous, shining, dry, scarcely viscid when moist, not 

 bibulo-hygrophanous, tawny-ochraceous, unchangeable ; flesh 

 not splitting, white ; gills emarginate, crowded, thin, but 

 brown, almost the colour of the pileus, quite entire ; stem 

 3 in. long, about in. thick, naked, firm, rather elastic, base 

 clavate or rather "bulbous, rarely equal, solid, white; veil 

 fibrillose, white, fugacious. 



Cortinarius (Hygr.} firmus, Fries, Monogr., ii. p. 93 ; Cke., 

 Hdbk., p. 274 ; Cke., Illustr., pi. 792. 



Grassy places in mixed woods. Known from allies 

 (G. subferrugineus, &c.), by the clear colour of the pileus 

 and white stem. (Fries.) 



The veil and fibrils of the stem become at length 

 ferruginous. 



Cortinarius (Hygr.) subferrugineus. Fr. 

 Pileus about 3 in. across, unequally fleshy, disc abruptly 

 compact, convex then expanded, obtuse, often flexuous, firm 



