206 POLYPOREI. 



Polyporus. Habitat not recorded. Penzance. 



Name pecten, a comb. From the markings on the pileus. Klotsch. 

 Fr. Hym. Eur. p. 559. B. & Br. n. ig6$.Qittl. t. 17. f. 5. 



63. P. COnchatus Fr. Pileus date-brown, corky inclining to 

 the nature of tinder, thin, effused, somewhat shell- shaped-reflexed, 

 concentrically sulcate, tomentose, margin acute. Pores curt, very 

 small, the thin trama of the same colour. 



Pileus concave beneath. It varies wholly resupinate. 



On trunks, willow, &c. Frequent. 



Distinguished from P. ribis by its harder substance and smoother pileus. 

 M.J.B. Name concha, a shell. From its shape. Fr. Hym. Eur. p. 560. 

 Berk. Out. p. 246. C. Hbk. n. 781. S. Mycol. Scot. n. 735. Pers. Myc. 

 Eur. ii. p. 85. 



64. P. ribis Fr. Pileus as much as 10 cent. (4 in.) broad, fer- 

 ruginous then umber, corky-coriaceous, becoming plane, rather 

 even, velvety, tawny internally and at the acute margin. Pores 

 curt, 2 mm. (i lin.) long, very small, naked, tawny. 



Perennial. Imbricated, somewhat zoned. 



On currant and gooseberry bushes. Common in England. 



Name ribis, currant. Fr. Hym. Eur. p. 560. Svst. Myc. \. p. 375. Berk. 

 Out. p. 246. C. Hbk. n. 780. Rostk. t. 53. Fl. Dan. t. 1790.7. 2. Corda 

 Sturm, xi. t. 62. Schum. Bull. t. 454.7 E. 



65. P. salicinus Fr. Pileus cinnamon then hoary, woody, very 

 hard, undulated, smooth, for the most part resupinate, margin 

 short, obtuse, spreading. Pores very small, round, ferruginous- 

 cinnamon. 



Pileus 30 cent. (12 in.) and more, often interrupted. Allied to P.fomenta,' 

 rius or igniarius, with an ebony-black crust. From its situation wholly re- 

 supinate or in vertical places encircled above with a narrow, undulated, 

 smooth margin. 



On willows. Common. Autumn. 



Name salix, willow. Fr. Hym. Eur. p. 560. Svst. Myc. i. p. 376. Icon, 

 t. 185.7. * Berk. Out. p. 246. C. Hbk. n. 782. 'S. Mycol. Scot. n. 736. 



*** Substance white or pallid (except P. roseus). 



66. P. roseus Fr. Pileus 5-10 cent. (2-4 in.) broad, 1-2.5 cent - 

 (Yz-\ in.) thick, externally and internally rose-colour, corky- 

 woody, hard, triangular, even, somewhat banded, externally as if 

 blown upon with cinereous-blackish powder, internally floccoso- 

 fibrous. Pores minute, round, rose-colour. 



Somewhat csespitose. 



