658 HYPOCHNUS 



pulverulent. Flesh pale, thin, soft. Spores hyaline, or pale straw colour, 

 coarsely verrucose, angularly-subglobose, 7-9 /t, often 1-guttulate ; 

 basidia subhyaline, clavate, 40-55 x 7-10//,, 2-4-sterigmata, 7-9 fj, 

 long. Subhymenial hyphae subhyaline; basal hyphae greyish, scarcely 

 branched, septate, 2-5-3 /it in diam., without clamp connections. Bark, 

 wood, etc., especially pine. Oct. Jan. Common. 



var. lavandulaceus Pears. Lavandulaceus, lavender coloured. 



Differs from the type only in the greyish lavender colour of the 

 hymenium without a trace of pink. Ground in woods under Castanea 

 saliva. Sept. Uncommon, (v.v.) 



2236. H. fumosus Fr. (= Corticium fumosum Fr.; Corticium sul- 

 phureum (Pers.) Bres. ; Phlebia vaga Fr. ; Coniopfiora sulfurea 

 (Pers.) Quel.) Fr. Icon. t. 198, fig. 3, as Corticium fumosum Fr. 



Fumosus, smoky. 



E. 3-10 cm., pale, yellow, tawny, cinnamon, grey, drab, brownish or 

 fuscous, effused, membranaceous, arachnoid, separable, more or less 

 overrun with intricate, branching, anastomosing threads; margin 

 bright yellow, becoming whitish, byssoid, fibrillose. Hymenium con- 

 colorous, granular, or reticulately veined. Flesh pale, or slightly 

 cinereous, membranaceous, thin. Spores white, or brownish, minutely 

 echinulate, ovoid, or globose, 3-7 x 3-5/x. Hyphae longitudinally 

 interwoven, occasionally with clamp connections, thin walled, hyaline, 

 or slightly smoky, 2-5-3-5/i in diam. Dead wood, branches, and twigs. 

 Jan. Dec. Common, (v.v.) 



2237. H. sphaerosporus R. Maire. (= Corticium sphaerosporum (R. 

 Maire) von Hoehn. & Litsch.) von Hoehn. & Litsch. Beit, zur 

 Kennt. der Cort. in Sitzungsber. der k. Akad. d. Wissensch. 

 Wien, Math.-Nat. Kl. Bd. cxvn (1908), 1106, and reprint 26, 

 text-fig. 5. crtyaipa, a ball; cnropd, seed. 



R. 1-2 cm., chalk white or snow white, becoming yellowish in the 

 centre, effused, arachnoid, and porous under a lens; margin similar 

 or fibrillose. Hymenium concolorous, mealy, or granular. Flesh con- 

 colorous, thin, floccose. Spores hyaline, coarsely and minutely warted, 

 globose, or angularly-globose, 3-6 x 2-5-4/z, (mostly 4-5 x 4jii), 1- 

 guttulate; basidia clavate or pyriform, 8-15 x 4-6 p, with 2-4- 

 sterigmata 2-5 /A long. Hyphae hyaline, 2-4/i in diam., thin walled, 

 with clamp connections, basal hyphae often forming rhizoidal strands, 

 and inclosing acicular, or fusiform crystals of oxalate of lime, 10-25/i 

 long. Beech logs and on bare soil. Oct. Rare, (v.v.) 



2238. H. submutabilis (von Hoehn. & Litsch.) Rea. (= Corticium sub- 

 mutabile von Hoehn. & Litsch.) Submutabilis, changeable. 



R. 1-3 cm., dirty whitish to yellowish, effused, irregular; margin 



