158 rUNGUS-FLulIA. 



IV. APUS. Sessile, dimidiate. 



Hydnum cirrhatum. Pers. 



Pileus 2-4 in. across, simple or imbricated, fleshy, colour 

 variable, wliite, ])ale yellow, or witb a reddish tinge, attached 

 by a broad lateral surface, exjianded ; the upper surface vith 

 long, curled, abortive spines ; spines equal, thin, rather tough, 

 pale, i-J in. long ; spores globose, 3 /x diam, 



Hydnum cirrhahm, Persoon, Syn., p. 558; Stev., Fung., 

 p. 240. 



On trunks of varioxis trees. 



Hydnum diversidens. Fries. 



Pileus 2-3 in. across, fleshy and irregularly tuberculose or 

 lobed, sometimes substipitate, whitish or yellowish, upper 

 surface with erect, irregularly-notched teeth ; the margin 

 clothed with clul>sliaped processes; under surface with 

 simple awl-shaped, regular spines, 3-G lines long. 



Hydmm diversidens. Fries, 8. M. i. p. 411 ; 8tev,, Fung., 

 p. 240. 



On Ijeech, hornbeam, birch, kc. Remarkable for the three 

 forms of teeth. Often very irregular in form. 



Hydnum ochraceum. Pers. 



Pilei 1-3 in. across, thin, coriaceous, zoned, ochraceous, 

 efi'uso-reflexed or entirely resupinate ; spines very minute, 

 ochraceous with a pink linge ; spores subglobose, 5 yx diam. 



Hydnum oclracntm, Pers., Syn., p. .550 ; Stev., Fung., p. 241. 



On dead branches. Peadily separable from the matrix. 

 Intermediate between the dimidiate and truly resupinate 

 species. 



V. RESUPIKATI. Entirely rcsiqnnate. 



* Siiines fuHcnns or ferrut/inous. 



Hydnum squalinum. Fr. 

 Suliicnliim palo wood-colour, Arm, coriaceous, thick, subor- 

 bicular, 2-3 in. across; spines crowded, stout, compressed, 

 ferruginous, then brownish, 3-4 lines long. 



