POLTPOEEI. 277 



with white sebaceous down, as well as the margin. — Fr.Epicr.p, 

 ^70. Bull, t ASS. Eng.FLY.p.U2. 



At the base of ash trees. 



Solitary or imbricated, thick, rugged, somewhat zoned, dark red-brqwn ; 

 substance corky,'pale. Pores minute, pale, of the same colour as the pileus 

 within. Smell strong and penetrating. — M.J. B. 



785. Polyporus cytisinus. Berk. "Laburnum Polyporus." 



Large, imbricated ; pileus coarsely tuberculated, hard, woody ; 

 margin subacute ; substance nearly white, as well as the minute 

 pores. — Berk. Outl.p. 247. Sow. t. 288. Eng. Fl. v. p. 142. 



At the foot of a laburnum. London. 



A foot or more across. Imbricated, dimidiate, quite smooth, at least when 

 dry, but coarsely tuberculated ; substance slightly zoned, very thick and close, 

 pale, evidently composed of two or three successive layers. — M.J.B. 



786. Polyporus variegatus. Fr. " Variegated PoljTDorus." 



Pileus between corky and woody, smooth, flattened, even, 

 toneless, shining, variegated with orange and bay, pallid within ; 

 Dores round, minute, short, unequal, and torn, yellowish. — Fr. 

 ^Epicr.p. 470. Sow. t. 368. 



On trunks. 



787. Polyporus cervinus. Pers. "Fawn-coloured Polyporus." 



Effused, very broad ; pileus somewhat reflexed, zoned, cine- 

 reous-umber, clothed with spongy down ; pores large, variable, 

 greyish; dissepiments rigid. — Pers. M. E.ii. p. 87. Ann. N. H. 

 no. 347. 



On fallen branches of beech. [Mid. Carolina.] 



Eemarkable for its large pores and rigid dissepiments, especially when 

 young. — B. <b Br. 



788. Polyporus annosus. Fr. " Imbricated Polyporus." 



Pileus woody, convex, expanded, rugoso-tuberculose, in the 

 first season silky, in the second, and after, covered with a rigid, 

 smooth, blackish crust, white within; margin obtuse, whitish, 

 as well as the medium-sized, obtuse pores. — Fr.Epicr. p. 4:71. 

 Schcef. 1. 138./. 1-3. P. Scoticus, Eng. Fl. v. p. 142. 



On stumps of larch. [United States.] 



, Forming masses 3-18 in. wide of imbricated, rugged, or radiato-striate, 

 brown pilei, occasionally tawny towards the margin, marked with strong, 

 vaulted zones, which arise from each annual layer projecting beyond that of 



