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. Mycol. Scot. n. 694. — Jacq. Misc. i. t. 12. 

 Mich. t. jo. f. 7. Paul. t. 164./. 12. 



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-tome?itose, 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. & 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, sinuated and 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. i. 

 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. perenilis 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. (1 in.) long, varying in 

 thickness. M.J.B. Spores oval, white, 3 x 2 mk. W.G.S. Name—perennis, 

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

 S. Mvcol. Scot. n. 697. Kostk. t. 6. Husseyx. t. 51.— Zi»*. Scheeff. t. 125. 

 Sow . t. 192. Fl. Dan. t. 1075. Bull. t. 28, 449. /. 2. Bolt. t. 87. 



