CORTICIUM 685 



under a lens. Hymenium concolorous, becoming cream colour with age, 

 or when dried. Flesh pale, waxy, soft, loose. Spores white, elliptical 

 to cylindric ellipsoid, slightly curved, or flattened on the one side, 

 7-12 x 3-5-6-5/Li; basidia 18-38 x 6-11/t, with 2-4 rather straight 

 sterigmata, 4-5 x 1/i. Gloeocystidia cylindrical, subfusiform, or ven- 

 tricose, 21-150 x 4-5-21/u, contents hyaline, or pale yellowish. Basal 

 hyphae loosely interwoven, much branched, 2-5-7 /A in diam., with 

 clamp connections. Bark, and fallen branches. Jan. Dec. Common. 

 (v.v.) 



2322. C. (Gloeo.) lactescens Berk. Trans. Brit. Myc. Soc. rv, t. 3, 

 figs. 6-8. Lactescens, turning to milk. 



R. 1-20 cm., whitish, or flesh colour, widely effused, agglutinated, 

 adnate ; margin white, narrow, byssoid, pubescent. Hymenium white, 

 then cream, tan, flesh colour, or greenish, and finally brownish pink, 

 smooth, pruinose, cracked when dry. Flesh pale, waxy, fibrillose, 

 rather thick, giving out a watery, milk white juice when wounded. 

 Spores white, broadly elliptical, obtuse at both ends, with a lateral 

 apiculus, 5-9 x 4-6 /A, contents densely granular; basidia 20-40 x 

 5-8/z. Gloeocystidia cylindrical, sometimes swollen at the base, 80- 

 600 x 4-9 fM, contents oily, and granular. Basal hyphae coherent, 

 1/u- in diam., other hyphae 1-3 /A in diam. Smell like that of Lactarius 

 quietus. Dead oak, ash, and willow trunks, and branches. Sept. 

 Feb. Not uncommon, (v.v.) 



2323. C. (Gloeo.) radiosum (Fr.) Rea. (= Gloeocystidium alutaceum 

 (Schrad.) Bourd. & Galz.; Corticium citrinum (Pers.) Fr. sec. 

 Bres.) Radiosum, radiant. 



R. 3-10 cm., milk white, becoming yellowish, widely effused, closely 

 adnate, waxy; margin white, broad, fibrillose, silky, radiating. Hy- 

 menium milk white, or bright yellow when fresh, becoming cream, tan, 

 or dingy ochraceous, very smooth. Flesh white, waxy, fibrillose, thin. 

 Spores white, "subglobose, shortly apiculate at the base, 4-7 x 4-6 /x, 

 sometimes rough; basidia 35-60 x 5-9 /*, with 2-4 straight sterigmata, 

 4-6^, long. Gloeocystidia very thin- walled and hyaline, oboval, 

 fusiform, or prolonged into a neck, often constricted in the middle, 

 60-150 x 8-27 /A, contents hyaline, not granular. Hyphae thin walled, 

 2-3 jit in diam., soon collapsing" Bourd. & Galz. Rotten wood. 

 Oct. Feb. Uncommon. 



2324. C. (Gloeo.) albostramineum (Bres.) Bourd. & Galz. (= Hy- 



pochnus albostramineus Bres. ; Corticium punctulatum Cke. sec. 

 Wakef. in litt.) Trans. Brit. Myc. Soc. rv, t. 3, figs. 9-11. 



Albus, white; stramineum, straw colour. 



R. 3-6 cm., whitish, then deep cream or pale straw colour, widely 

 effused, separable; margin similar, indeterminate, subreticulate, or 



