POLYPORUS. 189 



With thin pileus. Fr. Hym. Eur. p. 528. Syst. Myc. i. p. 349. Berk. Out. Polyporus. 

 p. 237. C. Hbk. n. 737. S. My col. Scot. n. 694'. Jacq. Misc. \. t. 12. 

 Mich. t. 70. / 7. Paul. t. 164.7. I2 - 



C. Spongiosi. Pileus at first spongy-soft, &c. 



6. P. Schweinizii Fr. Pileus 20 cent. (8 in.) and more broad, 

 date -brown, thick, spongy- corky, strigoso-tomentose, rugged. 

 Stem thick, very short or obsolete, ferruginous. Pores large, 

 variable in size and torn, sulphur- greenish. 



Very large, sometimes regular and plano-cup-shaped, sometimes irregularly 

 shaped and dimidiate from growing into each other and incrusting, at first 

 tawny-tomentose, soon only at the margin, then when old wholly fuscous. 

 The substance when the plant is in fullest vigour is very soft-spongy, then 

 hardened, fragile when dry, rhubarb-colour becoming fuscous. 



In pine woods about roots. Rare. July-Oct. 



It occurs with a central stem and also imbricated. B. dr 3 Br. Spores oval, 

 white or transparent, 3x8 mk. W.G.S. Name after Schweinitz. Fr. 

 Hym. Eur. p. 529. Icon. t. 179. /. 3. Berk. Out. p. 238. C. Hbk. n. 739. 

 S. Mycol. Scot. n. 695. Sv. Bot. t. 720. 



7. P. rufescens Fr. Flesh-colour. Pileus 5-10 cent. (2-4 in.) 

 broad, spongy, soft, unequal, hairy. Stem short, irregularly 

 shaped. Pores large, sinuctted&bA torn, white-flesh-colour. 



Its growth is quite that of P. Schweinizii , but it is smaller, softer, and 

 different in colour both internally and externally. 



On stumps. Frequent. Nov. 



Name rufesco, to become red. Fr. Hym. Eur. p. 529. Syst. Myc. \. 

 p. 351. Berk. Out. p. 238. C. Hbk. n. 740. S. Mycol. Scot. n. 696. Sow. 

 t. 191. 



D. Subcoriacei. Pileus at the first indurated, &c. 

 * Pileus tomentose, velvety. 



8. P. perennis Fr. Pileus cinnamon then date-brown, cori- 

 aceous, tough, plano-infundibuliform, velvety becoming smooth, 

 zoned. Stem slightly firm, thickened downwards, velvety. Pores 

 minute, angular, acute, at first sprinkled with a white bloom, 

 then naked, torn. 



The margin when the plant is in fullest vigour is fimbriate, then entire. 

 On the ground and stumps. Frequent. July-Jan. 



Pileus 4-5 cent. (1^-2 in.) broad. Stem 2.5 cent, (i in.) long, varying in 

 thickness. M.J.B. Spores oval, white, 3x2 mk. W.G.S. Name perennis, 

 perennial. Fr. Hym. Eur. p. 531. Berk. Out. p. 238. C. Hbk. n. 741. 

 S. Mvcol. Scot. n. 697. Rostk. t. 6. Hussey i. /. 51. Linn. Schceff. t. 125. 

 Sow. 't. 192. Fl. Dan. t. 1075. Bull. t. 28, 449.7. 2. Bolt. t. 87. 



