2l6 POLYPOREI. 



Polyporus. white. B. & Br. Name from the colours. Rostk. 27. t. n. B. & Br. n. 

 1022. Fr. Hym. Eur. p. 576. P. corticola C. Hbk. n, 817. 



103. P. viridans Berk. At first white, then when dry pallid 

 green, effused, crustaceo-adnate, thin, margin pulverulento- 

 tomentose. Pores minute, angular, dissepiments thin. 



Habit that of P. vulgaris. 



On rotten wood. Rare. Sept. 



Name virido, to be green. Greenish. B. 6 Br. n. 347. C. Hbk. n. 810. 

 Fr. Hym. Eur. p. 576. 



104. P. terrestris Fr. White, effused, spider-web-flaxy, rather 

 tender, fugacious. Pores central, extremely small, white then 

 rufescent. 



A doubtful and scarcely typical form. 



On naked soil. Uncommon. Sept.-Oct. 



Extremely delicate, vanishing when touched. Name terra, earth. Grow- 

 ing on the soil. Fr. Hym. Eur. p. 576. Berk. Out. p. 252. C. Hbk. n. 814. 

 S. Mycol. Scot. n. 757. Dec. Fl.fr. 6. p. 39. 



105. P. subgelatinosus B. & Br. Orbicular, forming little 

 pulvinate masses \vith an obtuse raised border, which is at first 

 tomentose and pallid, becoming black, of a somewhat gelatinous 

 consistence. Pores pale delicate grey, with an acute even edge, 

 about -^Q in. diameter. 



On dead wood, parasitic on P. amorphus. Rannoch. 



Name sub-gelatinosus, somewhat gelatinous. B. & Br. n. 1569. .S. 

 Mycol. Scot. n. 758. 



##****# Pores persistently white, &><:. 



106. P. medulla-panis Fr. White, effused, determinate, some- 

 what tmdulated, firm, smooth, the naked circumference somewhat 

 marginate, almost wholly formed of the longish, medium-sized, 

 entire pores. 



Annual, moderately large, becoming hard when dry, separating. Softer 

 and watery-soft when on the ground. 



On decaying branches. Uncommon. 



Becoming yellowish when old. Name medulla, pith, &c. ; panis, bread. 

 From its likeness to soft crumb of bread. Fr. Hym. Eur. p. 576. Icon. t. 

 190. f. 2. Berk. Out. p. 251. C. Hbk. n. 806. S. Mycol. Scot. n. 759. 

 Pers. Syn. p. 544. 



