POLYPORUS. 191 



becoming woody. Stem 4 cent. (1%. in.) long, 6-8 mm. (3-4 lin.) Polypoms. 

 thick, excentric, somewhat velvety, incurved, thickened down- 

 wards, black. Pores decurrent, curt, minute, obtuse, unequal, 

 white. 



The pileus is at length, and at first sight smooth. Stem diffused into the 

 pileus. 



On dead wood and roots. Uncommon. Aug.-Sept. 



Name — pikw;, black ; 71W?, a foot. Black-stemmed. Fr. Hym. Eur. p. 

 534. Syst. Myc. i. p. 543. B. & Br. n. 1286. S. Mycol. Scot. n. 699. Rostk. 

 t. 4. — Swart z V. A. H. 



** Pileus even, very smooth. 



12. P. Rostkovii Fr. — Pileus smoke- colour, fleshy -pliant, 

 dimidiato-infundibuliform, smooth, even. Stem long, excentric, 

 reticulated, abruptly black, thickened at the base. Pores decur- 

 rent, large, pentagonal, acute, toothed, white then dingy-yel- 

 lowish. 



In size it vies with P. squamosus to which it is allied. The stem is gener- 

 ally longer, incurved, connate and somewhat caespitose at the base. The 

 pileus inclines to yellowish. The pores are deeply decurrent on the outer 

 side of the stem. 



On stumps. Rare. 



Pileus 15 cent. (6 in.) broad. Stem long. Pores 4 mm. (2 lin.) or more 

 long. B. 6° Br. Spores with two nuclei, 14x6 mk. W.G.S. Name — after 

 Rostkovius. Fr. Hym. Eur. p. 534. Berk. Out. p. 238. C. Hbk. ?i. 743. 

 Rostk. t. 17. 



13. P. picipes Fr. — Pallid then chestnut, commonly pale yel- 

 lowish-livid, with the disc chestnut. Pileus fleshy-coriaceous 

 then rigid, tough, even, smooth, depressed at the disc or behind ; 

 flesh white. Stem excentric and lateral, equal, firm, at first vel- 

 vety, then naked, dotted, black up to the pores. Pores decurrent, 

 round, very small, rather slender, white, then slightly pale 

 yellowish. 



Imbricated, odour somewhat sweet. The pileus is depressed behind, com- 

 monly emarginate, infundibuliform with lobes all round. 



On trunks, especially willow. Frequent. July-Dec. 



Name — pix, pitch ; pes, a foot. Black-stemmed. Fr. Hym. Eur. p. 534. 

 Berk. Out. p. 239. C. Hbk. n. 744. S. Mycol. Scot. n. 700. — Grcv. t. 202. 

 Pers. Ic. pict. t. 4./. 1, 2. 



14. P. varius Fr. — Pileus commonly bay-brown, fleshy-pliant, 

 extenuated, soon woody, smooth, somewhat virgate, irregularly 

 shaped, depressed at the disc or behind. Stem excentric and 



