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Key to the Subgenera of Cortinarius 



1 . Universal veil * present when young. 2 

 Without an evident universal veil. 3 



2. Universal veil glutinous ; the stipe consequently viscid. Myxacium 

 Universal veil fibrous; stipe lanate or scaly, peronate. Telamonia 



3. Stout; pileus thick and fleshy. 4 

 Smaller and more slender ; pileus thin at least at the margin. 5 



4. Pileus viscid. Phlegmacium 

 Pileus dry, often sqamulose. Inoloma 



5. Pileus dry, at first villous or hirsute, sometimes becoming glabrate with age. 



Dermocybe. 

 Pileus moist, hygrophanous, glabrous, or with marginal whitish fibrils. Hydrocybe. 



Phlegmacium 



1. Stipe stout, fleshy. 2. 

 Stipe slender, subcartilaginous ; cortina medial. Section Elastici. 



2. Stipe short, bulbous ; cortina basal attached to margin of bulb. Section Scanri. 

 Stipe longer, cylindrical or bulbous ; cortina superior. Section Cliduchi. 



Cliduchi 



1. Lamellae at first whitish or pallid. 

 Lamellae at first violet or purple. 

 Lamellae at first olivaceous. 



2. Pileus pallid or alutaceous. 



Pileus brown with radiating gray center ; stipe brown. 

 Pileus reddish- brown. 

 Pileus yellow or ochraceous. 



3. Stipe spotted. 



Stipe smooth, whitish. 



4. Stipe attenuate below, at first scaly. 

 Stipe equal, at first lanate. 



5. Pileus dark-brown, fuliginous or fulvous. 

 Pileus light-brown or gray. 



6. Stipe long, IO-15 cm. 

 Stipe short, 2-5 cm. 



7. Pileus viscid, the margin at length revolute. 

 Pileus glutinous, the margin strongly involute. 



2 



5 



7 



C. sebacens Fr. 



C. radians Earle 



C. maculipes Pk 



C. nitdipes Earle 



C. clavicolor Fr 



C. turmalis Fr 



C. varias (Schaeff. ) Fr 

 6 



C. sphagnophilus Pk 



C. lanatipes Pk 



C. infr actus (Pers.) Fr 



C. glutinostts Pk 



* It is unfortunate that the term " veil " is used in mycology for two entirely dif 

 ferent things. As here used it refers to a more or less well developed external cover 

 ing of the entire young plant. It is the structure which when fully developed as in 

 Amanita becomes a volva. The inner veil or preferably the cortina is a fibrous or 

 membranous covering of the young lamellae. When fully developed it remains as a 

 permanent annulus on the stipe. In this genus the cortina is usually cobweb-like and 

 is soon evanescent. 



