CORTICIUM. 275 



6. C. porosum B. & Curt. — Resupinate, milk-white, here and Corticium. 

 there porous, margin free, reflexed. 



The pores look as if little dew-drops had settled on the hymenium, which 

 had in consequence contracted or rather retracted. 



On wood. Aboyne. 

 Name— porosus, porous. B. & Br. n. 1821. S. Mycol. Scot. n. 886. 



7. C. arachnoideum Berk. — Effused, delicately flaxy as is the 

 circumference. Hymenium white, very thin, patchy. 



The mycelium is as delicate as a spider's web. 



On wood, lichens, &c. Frequent. Oct.-Feb. 



Name — apax 1 "?. a spider. From the spider-web mycelium. Berk. Out. p. 

 273. C. Hbk. 11. 924. S. Mycol. Scot. n. 877. Fr. Hym. Eur. p. 649. 



8. C. fcetidum B. & Br. — Effused, resupinate, arachnoid be- 

 neath, white then ochraceous and smooth. 



Not apparently a resupinate form of Thelephora fastidiosa. 



On sawdust. Coed Coch. 

 Name— -fcetidus, foetid. B. &> Br. n. 1824. 



9. C. laeve Pers. — Effused, membranaceous, separating - , villous 

 beneath, circumference flaxy (not fibrilloso-radiate). Hymenium 

 even, smooth, somewhat flesh-colour or livid. 



On dead wood, sticks, &c. Very common. Nov.-March. 



Hymenium sometimes pure white. M.J.B. Spores ellipsoid or ovoideo- 

 sphaeroid, subchlorino-hyaline, 12 x 8-10 mk. K. Name — Icevis, even. Pers. 

 Disp. p. 30. Fr. Hym. Eur. p. 649. Berk. Out. p. 273. C. Hbk. n. 925. 

 S. Mycol. Scot. 71. 878. — Bonord.f. 251. 



10. C. roseumPers. — Rose-colour, effused, adnate, circumference 

 fringed and whitish. Hymenium firuinose, becomi?ig pale, at 

 length rimoso-corrugated, hardened. 



Very pretty, cognate with Hyphelia rosea. 



On dead wood, birch, poplar, &c. Frequent. Oct.-Feb. 



Name — rosa, a rose. Rose-coloured. Pers. Disp. p. 31. Fr. Hym. Eur. 

 p. 650. Berk. Out. p. 273. C. Hbk. n. 926. S. Mycol. Scot. n. 879. 



** Mycelium a?ui circumference coloured. 



11. C. velutinum Fr. — Flesh-colour, effused, adnate, circum- 

 ference strigose with straight, diverging fibres of the same colour. 



Hymenium thick, fleshy, even, velvety with dense small bristles. 



