CLASSIFICATION 371 



P. salignns.—Twiitd, soft, elastic, pileoli flattened, overlapping, 

 more or less kidney-shaped, whitish, grooved near the thick, wavy 

 edge ; pores wavy, elongated, white. 



On decaying willows. 



P. spongia. — -Tufted, much divided, pileoli 3-6 in. across, spongy, 

 soft, numerous, attached by the side, wrinkled, velvety, rusty 

 brown ; pores sulphur-coloured, then brownish. 



Differs from P. schweinitzii in the densely tufted habit, brighter 

 colour and small, entire pores. 



On dead trunks of pine, etc. 



3. Pileus sessile, bracket-like and attached by a broad base, or 

 partly resupinate with a free projecting part. 



* Pileus rusty, brownish or dusky. 



P. dryadeus. — Pileus 6 in. to i foot across, bracket-shaped, 

 fleshy, then corky, smooth, rugged, rusty, then brown, often 

 exuding drops of water towards the edge, flesh rusty ; tubes 

 |-i|- in. long, rusty, pores rounded, paler. 



Smell strong, somewhat acid. Sometimes imbricated. 



Near the base of oak trunks. 



P. hispidns (PI. XXIX, fig. i), — Bracket-shaped, sometimes 

 imbricated, 5-9 in. across, fleshy, coarsely hispid, rusty brown ; 

 flesh thick, spongy, fibrous, rusty ; tubes l-i in. long, yellowish, 

 then brownish, often exuding drops of water. 



On trunks of ash, apple, plum, etc. A very destructive parasite. 



P. cuticularis.- — Horizontal, semicircular, point of attachment 

 somewhat narrow, coarsely hairy, rusty brown, flesh rather thin, 

 yellow-brown, edge fibrous, incurved ; tubes longer than the 

 thickness of the flesh, pale, then rusty, pores minute. r 1 



Often imbricated, the pilei growing into each other. Differs 

 from P. hispidns in the thinner flesh and larger pores. 



On trunks. 



P. quercinus. — Pileus tongue-shaped, horizontal, narrowed be- 

 hind into a thick stem 3-6 in. long, granular, pale tan or tinged red, 

 and reddish when bruised, flesh coloured, corky ; tubes about 2 

 lines long, pores rounded, whitish. 



Somewhat resembling Fistulina hepatica in general appearance. 



On dead oak trunks. 



P. kcithii. — Shell-shaped, eft'uso-reflexed, narrowed behind, 

 about I in. across, reddish brown, rough with spine-like points ; 

 pores large, angular, palhd. 



On fallen branches. 



P. crispus. — Horizontal, effused behind, thin, phant, wrinkled, 

 smoky black, then greyish, edge remaining blackish, 1-2 in. across ; 

 pores large, unequal, at length torn, silvery grey. 



