664 STERETJM 



**Hymenium yellow, or grey. 



2253. S. hirsutum (Willd.) Fr. Berk. Outl. Brit. Fung. t. 17, fig. 7. 



Hirsutum, hairy. 



R. 2-10 cm., pallid, yellowish, or greyish, margin yellow, widely 

 effused, then reflexed, sometimes entirely resupinate, strigosely hairy, 

 subzoned; margin obtuse. Hymenium bright ochraceous, pinkish, or 

 tan colour, sometimes becoming grey, even, smooth. Flesh yellowish, 

 coriaceous, firm, tough, "intermediate layer bordered next to the 

 hairy covering by a very dense, narrow, golden zone, composed of 

 densely and longitudinally arranged hyaline hyphae, 3-4)U, in diam., 

 some of which in the subhymenium are thick walled, up to 5-6 /x in. 

 diam., and very rarely have golden brown contents as seen between the 

 basidia" Burt. Spores white, elliptical, incurved, 6-8 x 3-4 p.. Cys- 

 tidia none. Stumps, trunks, logs, posts, and fallen branches. Jan. 

 Dec. Common, (v.v.) 



var. subcostatum (Karst.) Massee. (= Corticium subcostatum (Karst.) 

 Bourd. & Galz.) Subcostatum, somewhat ribbed. 



Differs from the type in its vaguely costate, or rugose hymenium. 

 Fallen branches. Sept. Nov. Uncommon, (v.v.) 



var. luteocitrinum Sacc. Luteus, yellow; citrinum, lemon yellow. 

 Differs from the type in the golden yellow margin, and dark coloured 

 p. Stumps. Sept. Uncommon, (v.v.) 



2254. S. ochroleucum Fr. &>%po?> pale; Xeu/co?, white. 

 R. 3-5 cm., whitish cream, then greyish tan colour, orbicular, effuso- 



reflexed, confluent, then free, often entirely resupinate, villose, or 

 strigose, zoned. Hymenium pale ochre, smooth, cracked when dry. 

 Flesh pale, floccose, thin, "hyphae about 2-5/x. in diam., granule- 

 incrusted and interwoven throughout the thickness of the pileus" 

 Burt. Spores white, elliptical or subglobose, 4-5-5 x 3p,. Dead wood 

 and bark. Jan. March. Uncommon, (v.v.) 



***Hymenium purple, lilac, or brown. 



2255. S. purpureum (Pers.) Fr. (= Stereum vorticosum Fr. sec. Burt.) 

 Hussey, Illus. Brit. Myc. i, t. 20. Purpureum, purple. 



R. 2-8 cm., whitish, pallid, or greyish, effuso-reflexed, more or less 

 imbricate, sometimes entirely resupinate, zoned, villosely tomentose', 

 margin entire, sometimes crisped or lobed. Hymenium lilac, or 

 purplish, even, smooth. Flesh whitish, coriaceous-soft, somewhat 

 thick. Spores white, oblong, or oboval, apiculate at one end, 6-8 x 

 3-4ju,. Hymenial cystidia none, subhymenial cystidia vesiculose, 15- 

 30 x 12-25/A. Dead branches, and felled trunks, especially birch, 

 beech, elm, and poplar. Jan. Dec. Common, (v.v.) 



