208 FUNGUS-FLORA. 



Polyposis ramcntacens, B. & Br., Aun. Nat. Hist., n. 1809 ; 

 Stev., Brit. Fung., p. 214. 



On dead branches. Pores ^— | mm. across. Fungus car- 

 tilaginous and horny when dry. 



V. Pores timber, rufous, brown, purjjle, Jiesli-colour or cinnamon. 



Poria umbrina. Fr. 



Kesupinatc, effused, up to ]y in. thick; surface rather 

 uneven, umber with a rufous tinge, pores minute, roundish, 

 tmequal ; margin smooth, paler than the hymenium. 



Poli/porus nmbrimis, Fries, Hym. Eur., p. 571 ; Stev., Brit. 

 Fung.', p. 211. 



On trunks. Extending for 2-3 in., flesh almost obsolete ; 

 distinguished amongst its allies by the dingy umber colour 

 and pale, smooth margin. 



Poria rufa. Fr. 



Effused, thin, closely adnate, coriaceous, determinate, 

 blood-red with a rufous tinge; pores minute, thin. 



Poli/jporus rufiis. Fries, Epicr., p. 484 ; Stev., Brit. Fung., 

 p. 2i;i. 



On branches and prostrate trunks. Margin byssoid Avhcn 

 young. 



Poria aneirina. Sommcrf. 



Effused, thin, subinnate, margin white, byssoid ; pores 

 large, wax}^, angular, even, fulvous. 



Poh/jjorus aneirinus, Sommerfeldt, Lapp., j). 276; Stev., 

 Brit. Fung., p. 214. 



On dead wood and branches, of poplar more especiallv. 

 Commencing as in P. bomhycina as a b^'ssoid membrane from 

 which the pores are formed, which at length become waxy, 

 generally exMctlj- hexagonal, and tawn}^ or fulvous, ?;-l mm. 

 across. Distinguished by its large pores, the hymenium of 

 which has a peculiar smooth, waxy as2)ect. (B. & Br.) 



Usually beconiing much contracted and cracked nr torn 

 during drying. 



Poria incarnata. Fr. 

 Broadly ell'used, corky-coriaceous, persistent, firm, upper 

 margin frequently reflexed ; hymenium liesh-colour, pores 

 elongated, unequal, commonly oblique. 



