154 FUNGUS-PLOEA. 



about 2 lines long, rusty-brown ; stem firm, 2-3 in. long, 

 unequal, rusty-brown ; spores subglobose, 4 /i diam. 



Eydnum ferrugineum, Fries, S. M. i. p. 403 ; Stev., Fung., 

 p. 237. 



In fir woods. Often gregarious ; soft when young, corky 

 and dry at maturity. 



Hydnum scrotaiculatum. Fr. 



Entirely ferruginous ; pileus 1-2 in. across, convex then 

 plane or depressed, corky, pubescent, slightly pitted and 

 scaly at the centre, flesh zoned ; spines short (1 line), thin, 

 fragile, decurrent; stem ^| in. long, ^ in. thick, equal, 

 smooth, often rooting ; spores angularly globose, 3-4 /a diam. 



Hydnum scrohiculatum, Fr., Obs. i. p. 143 ; Stev., Fung., 

 p. 237. 



In fir woods. Becoming pale when dry ; gregarious and 

 often confluent. 



Hydnum zonatum. Batsch. 



Entirely ferruginous; pileus 1-2 in. across, coriaceous, 

 thin, depressed, zoned, radiato-rugose, margin paler, thin, 

 sterile beneath ; spines 1-2 lines long, slender, acute, pale, 

 then ferruginous ; stem ^1 in. long, ^ in. thick, minutely 

 squamulose, base thickened; spores globose, muriculate, 

 pale watery brown, 4 yu, diam. 



Hydnum zonatum, Batsoh., F. 224; Stev., Fung., p. 237. 



In fir woods. Closely resembling H. scrohiculatum ; dis- 

 tinguished by the zoned, radiato-rugose pileus and muriculate 

 spores. 



A small variety has been found at Ascot, remarkable for 

 an appearance in the spines like that of shot silk. Spores' 

 ferruginous. (B. & Br.) 



Hydnum nigrum. Fr. 



Pileus blackish-blue, usually without zones, margin pale ; 

 corky, rigid, convex, then depressed, tuberculose, tomentose, 

 2-4 in. across ; flesh blackish ; spines white, delicate, short ; 

 stem about 1 in. long, stout, unequal, often rooting, black 

 without and within ; spores globose, 6 /x. diam. 



Hydnum nigrum, Pries, S. M. i. p. 404; Stev., Brit. Fung., 

 p. 238. 



