Hydnum HYDNACE/E 381 



distant, sometimes collected in small groups or fascicles, slate, 



somewhat umber, apex white. 



Fallen branches, ash, oak. Oct. -April. Diam. 4^ in. When dry, cracking 

 and becoming full grey or fawn to deep brown or almost black. 



1721. H. erinale Fr. (from the slender hair-like spines ; crinis, a 



hair) a. 



Sub. effused, villoso-interwoven, thin, sienna-ochre. Sp. \ in. 



long, crowded, very slender, sienna-umber or rufous-brown. 



Dead wood ; rare. Diam. 3§ in. The hair-like spines resemble those of 

 Mucronella. 



1122. H. ferruginosum Fr. (from the rust-of-iron colour ; ferrum, 

 iron) (i c. 

 Sub. effused, submucedinous, separable from matrix, tawny, 

 ferruginous. Sp. crowded, conico-awl-shaped, acute, colour 

 as Sub. 



Decayed wood, especially under bark, rarely on the ground. July-Oct. 

 Diam. 2 in. Sometimes mere conidial forms of other fungi, as Isaria 

 amongst the Hyphomycetes, or 1780 are mistaken for this plant. 



1723. H. varieeolor Fr. (from the varying colours) a b c. 



Sub. effused, adnate, forming a furfuraceous crust, white, becoming 

 cream, sienna and sienna-umber in drying, sometimes re- 

 sembling white miniature clouds ; marg. finely white-fimbriate. 

 Sp. crowded, conical, short, or minute with a ragged appear- 

 ance, but here and there longer and more typically Hydnum- 

 like, commonly adpressed, colour as Sub. 



Dead stumps, oak ; rare. Oct. Diam. 3! in. 



1724. H. aureum Fr. (from the colour ; aurum, gold) a. 



Sub. somewhat cartilaginous, jagged-radiate ; marg. irregular, 

 narrow, byssoid. Sp. often developed in small patches, awl- 

 shaped, colour as Sub. 



Dead branches. Dec. Diam. 5J in. Appearance merulioid. Mycelium 

 permeating wood and causing defined yellowish flesh-coloured spots. 



1725. H. dentieulatum Pers. (from the slightly toothed spines ; dens, 



a tooth) a. 

 Sub. thin, somewhat fleshy, mealy, shining light-yellow-ochreous 



or olive-ochre, sometimes clouded pale brownish-rose. Sp. 



crowded, equal, minutely 2-3 toothed at the whitish apex. 

 Rotten wood. June. Diam. 2§ in. 



1726. H. alutaeeum Fr. (from the colour, like tanned leather, 



aluta) a b c. 



Sub. crustose, adnate, very thin, pallid ochreous, pale brownish- 

 yellow or biscuit. Sp. acute, very minute and short, here and 

 there a little longer and typically Zftv/w/w-like, colour as Sub. ; 

 marg. barren. 



Dead wood, pine ; rare. Nov. Diam. 4^ in. Resembling 1770. 



