198 rUNGUS-FLOKA. 



conditions of Poli/siidus and Fomes ; however, until evidence 

 is forthcoming, such must be considered as entities. 



ANALYSIS OF THE SPECIES OF PORIA. 



I. Pores persistently white, or hecoming pallid or pale 

 ochraceous when drj', hut never assuming bright tints. 



II. Pores white, changing to brown, green, red, or some 

 colour other than pallid or ochraceous Avhen dr3^ 



III. Pores white, with a more or less decided tinge of red 

 or flesh-colour when growing. 



IV. Pores when growing, bright yellow, ochraceous, or 

 honey-colour. 



V. Pures, umber, rufous, brown, purple, flesh-colour, or 



cinnamon. 



I. Pores persistently ichitisli. 



Poria vaporaria. Fr. 



Broadly effused, thin, inseparable, the white mycelium 

 penetrating the matrix ; pores large, angular, white then 

 cream-colour, forming a continuous stratum. 



Pohiporus vaporarim. Fries, Syst. Myc. i. p. 382 ; Stev., 

 Brit. Fung., p. 219. 



On dead trunks, branches, &c. Often broadly effused, 

 inseparable, pores very variable, large, angular, often ir- 

 regularly torn and more or less oblique, appearing as if 

 sunk into the matrix, usually bark, whitish or i^allid, 

 becoming pale ochraceous when dry. Pores often reach- 

 ing 1 mm. in length. 



Var. secernibilis, P.. & Br., Ann. Nat. Hist., n. 1022; 

 Stev., Brit. Fung., p. 219. 



White, lioney-coluur when dry, separable from the matrix. 



On fir leaves under moss. 



Poria mollusca. Fr. 



Effused, thin, soft, white, margin filirillosc, radiating ; 

 pores short, minute, roundish, very thin and unequally torn, 

 occupying the central iiortiun of the patch or here and there 

 in scattered clusters, j— a nnn- diameter. 



PoJi/porm mollui^rns. Fries, Syst. Myc. i. p. 384; Stev., 

 Brit. Fung., p. 218. 



