590 POLYPORUS 



scarcely zoned. Spores white, oval, 4/i. Beech, birch, elm, poplar, 

 willow, and fir stumps. Sept. Nov. Rare. (v.v.) 



1958. P. spumeus (Sow.) Fr. Sow. Eng. fung. t. 211. 



Spumeus, frothy. 



P. 7-16 cm., whitish, dimidiate, pulvinate, gibbous, rugosely hispid, 

 or floccose, becoming smooth; margin incurved. Tubes whitish, 2- 

 8 mm. long; orifice of pores whitish, becoming discoloured, minute, 

 round, or linear, separable. Flesh whitish, soft, becoming hard, and 

 discoloured, zoned towards the margin. Spores white, globose, 7-9 /A, 

 multi-guttulate. Beech, pear, apple, ash, hornbeam, elm, oak, willow, 

 and birch trunks and stumps. April Oct. Uncommon, (v.v.) 



P. borealis Fr. = Daedalea borealis (Wahlenb.) Quel. 



1959. P. tephroleucus Fr. Kostk. Polyp, t. 26. 



5, ash-coloured; Xeu6<?, white. 



P. 5-10 cm., grey, triquetrous, applanate, often imbricate, plane 

 beneath, unequal, villose, becoming smooth; margin obtuse, flexuose, 

 often white, and becoming blackish when touched. Tubes white, 10- 

 15 mm. long; orifice of pores white, round, small, becoming toothed 

 and fimbriate. Flesh white, zoned with grey or bistre, subgelatinous, 

 soft, becoming firm and fragile. Spores white, allantoid, 4-5 x 1- 

 1-5/A, slightly curved. Beech, and pine stumps, and logs. Sept. 

 Oct. Not uncommon, (v.v.) 



1960. P. alutaceus Fr. Kostk. Polyp, t. 30, as Polyporus epixanthus 

 Kostk. Aluta, tanned leather. 



P. 2-5-5 cm., tan, reniform, convex, or flattened, often connate, 

 subimbricate, plane beneath, somewhat velvety and rugose; margin 

 acute, even. Tubes whitish tan colour, 3-18 mm. long; orifice of pores 

 yellowish, minute, round. Flesh white, or yellowish, soft, then tough 

 and fragile, obsoletely zoned. Spores "with a slight ochraceous tinge, 

 subglobose, 4ju," Massee. Beech, and pine stumps and trunks. Sept. 

 Oct. Uncommon. 



1961. P. stipticus (Pers.) Fr. Fr. Icon. t. 181, fig. 2. 



ffrvTTTiKos, astringent. 



P. 3-6 cm., white, dimidiate, pulvinate, often imbricate, minutely 

 pubescent, becoming smooth; margin obtuse, becoming reddish. Tubes 

 white, 6-8 mm. long; orifice of pores at first with white milk-like drops, 

 becoming slightly rufescent when dry, small, round, or irregular. Flesh 

 white, soft, then hard, 1-5 cm. thick. Spores white, elliptical, 3-4 x 

 1-5/A, slightly curved, guttulate. Taste astringent. Pine trunks and 

 stumps. Sept. Oct. Uncommon, (v.v.) 



