222 FUNGUS-FLOEA. 



triangular, rugose, opaque, which approaches Fomes igni- 

 arius. 



Pomes salicinus. Fr. 



Woody, very hard, undulate, the greater portion usually 

 resupinate, with a narrow, undulated, smooth, free margin, 

 that is obtuse and patent, cinnamon then greyish; pores 

 minute, rounded, ferruginous-cinnamon, as is also the flesh ; 

 spores 5 X 3 /A; cystidia plentiful, 12-35 X 6 /x. 



Polyporus salicinus, Fries, Syst. Myc. i. p. 376; Stev., Brit. 

 Fung., p. 206. 



On willow trunks. Pileus 12 in. and more across. Eelated 

 to F. fomentarius and F. igniarius. Entirely resupinate, or in 

 vertical positions with the upper margin narrowly reflexed. 

 There is a form with the free margin striato-plicate. 



A foot or more long, often interrupted, glabrous, woody. 

 Pores rounded, equal, or when growing in an oblique direc- 

 tion, gaping. (Fries.) 



Fomes fraxineus. Fr. 



Pileus between corky and woody, glabrous, rather flattened, 

 zoneless, white when young, then reddish-brown, at first 

 even, then concentrically sulcate, pale within ; tubes short, 

 pores minute, rusty-red, at first covered, as is also the margin, 

 with a white pubescence ; spores subglobose, 6-7 p. long. 



Polyporus fraxineus, Fries, Syst. Myc. i. p. 374; Stev., 

 Brit. Fung., p. 207. 



On old ash trunks. 



Variable in form, softer when young, but not fleshy, truly 

 perennial. (Fries.) 



Solitary or imbricated. Smell strong and penetrating. 

 (Berk.) 



Pileus 3-9 inches and more broad ; tubes 2-4 lines long, 

 pores about mm. across. 



Pomes pectinatus. Klotzsch. 



Pileus rusty-brown, corky, inclining to woody, hard, 

 triangular, concentrically lamelloso-plicate, tomentosely scaly; 

 margin and the short, minute, obtuse pores, pale yellowish- 

 red, naked. 



Polyporus pectinatus, Klotzsch, Linnaea, viii. p. 485 ; Stev., 

 Brit. Fung., p. 205. 



