422 BRITISH FUNGI 



the sul^clavate setct of the hymenium, often rough with particles 

 of hme at the tip. In this last character approaching to the genus 

 Peniophora. 



On trunks. 



Stereum 



With a central stem, or horizontal and fixed by a broad base, or 

 forming a crust firmly fixed all over to the matrix or substance on 

 which the fungus is growing. Cap fibrous or velvety ; hymenium 

 smooth, not becoming cracked ; spores colourless. 



Agrees with Corticiiim in the smooth hymenium ; differing in 

 the hymenium not becoming cracked when mature. Peniop/iora 

 and Hynicnoclia'te differ in the hymenium being minutely \'eh'ety 

 or setulose (under a lens). 



Growing on dead wood, stumps, etc. Dry, thin, phant fungi. 

 Very common. 



* Stem central, growing erect. 



S. sowerhyi. — White. Pileus irregularly funnel-shaped, edge 

 irregular, rough with projecting points ; stem round, about | in. 

 long. 



On the ground, springing from buried twigs, etc. 



5. midtizonatum (PI. XXXII, fig. 6). — Tough when fresh ; pileus 

 deeply funnel-shaped, variously cut and lobed, brownish flesh- 

 colour with darker bands, passing into a short stem, 2-3 in. high. 



As a rule, numerous pilei grow close together and run into each 

 other, forming dense tufts 6-8 in. across and 2-3 in. high. 



On the ground, springing from buried twigs, etc. 



5. tuberosum.- — White, becoming pallid or reddish, cut into 

 narrow, irregular segments nearly or quite down to the tuberous 

 base, the segments arranged in a funnel-shaped manner ; stem, 

 when present, slender ; hymenium almost even. 



Distinguished from 5. sowerhyi by the pileus being cut into 

 narrow segments nearly down to the base and arranged in an in- 

 fundibuliform or funnel-shaped manner, and by the tuberous base 

 of the stem, about i in. high. 



On the ground. 



S. mididatum. — Whitish, becoming tan -colour, depressed, 

 minutely fibrillose, edge ^^•avy ; stem short, downy ; hymenium 

 minutely velvety, pale tan. 



From -J-i in. high, depressed or funnel-shaped ; stem short. 

 Remarkable for the minutely velvety, buff hymenium. 



On the ground. 



5. gausapatmn. — Densely tufted and grown together, sessile, 

 fuscous, then paler, edge the same colour, entire ; hymenium 

 radiately rugulose, smooth, darker. 



Pileus usually laciniate and spuriously zoned. 



On trunks. 



