154 FUNGUS-FLOKA. 



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

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



Hydnum ferruyineum, Fries, S. M. i. p. 403 ; Stev., Fung., 

 p. 237. 



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

 and dry at maturity. 



Hydnum scrobiculatum. 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 -J ^ in. long, ^ in. thick, equal, 

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



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

 p. 23?'. 



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 12 lines long, slender, acute, pale, 

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

 squamulose, base thickened ; spores globose, muriculate, 

 pale watery brown, 4 p. diam. 



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



In fir woods. Closely resembling H. scrobiculatum 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, tornentose, 

 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 p. diam. 



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

 p. 238. 



