254 FUNGUS-FLOEA. 



Polyporus pallescens. Pries, Syst. Myc. i. p. 359 ; Cke., 

 Hdbk., p. 274. 



On stumps, trunks, tranches, &o. 



Subcaespitose, commonly small and thin, affinities un- 

 certain. (Pries.) 



Thin, imbricated, 2-3 in. or more broad, with scarcely any 

 trace of zones, more or less tuberculated, pores minute, many 

 superficial, but towards the base a line or more deep, with a 

 pulverulent appearance, arising from a very minute down. 

 (Berk.) 



Polyporus trabeus. Eostk. 



White; pileus fleshy, fibrous, then firm, efiuso-reflexed, 

 transversely elongated, zonelesS, pallid ; tubes short, minute, 

 subrotund or elongated, toothed, white. 



Polyporus trabeus, Eostkovius, in Sturm's Deutschl. PI. Cr., 

 t. 28 ; Pries, Hym. Eur., p. 547. 



On pine wood. Commonly confounded with Polyporus 

 destructor; both very effused and reflexed, glabrous and 

 pubescent, but the present species is more regular, clearer in 

 colour, hyaline within when moist, and obsoletely zoned. 

 (Pries.) 



Polyporus fragilis. Pr. 

 Whitish, becoming spotted with brown when touched;' 



pileus fleshy, reniform, piano-depressed or variable in form, 



fibroso-rugose, convex below; pores slender, elongated and 



wavy, intricate, 



Polyporus fragilis. Pries, Blenchus, p. 86-; Oke., Hdbk., p. 270.' 

 On decayed fir wood, &c. Perm very variable, sometimes 



extended behind into a narrowed stem-like base and more or' 



less pendulous. 



Polyporus fibula. Pr. 



Whitish; pileus coriaceous, soft, tough, velvety-hairy, 

 zoneless, often radiato-rugose, snow-white within, margin 

 entire, acute ; pores small, roundish, acute, at length torn,, 

 becoming yellowish. - >, 



Polyporus fibula. Pries, Epicr., p. 476 ; Stev., Brit'Tung., 

 p. 210. • 



On fallen oak branches, also on worked wood, &c. 



Small, adnate behind, margin free all round, sometimes 



