CORTICIUM. 277 



at the circumference. Hymenium fleshy, soft, smooth, naked, Conidum. 

 of the same colour, cracked when dry. 



It varies dark ochraceous. When fertile it approaches C. velutinus. 



On birch log. Glamis, 1874. Nov. 



Name cinnamomum, cinnamon. Of the colour. Fr. Hym. Eur. p. 650. 



B. & Br. n. 1584. S. Mycol. Scot. n. 884. 



17. C. caeruleum Fr. Beautiful azure-bhte, somewhat round, 

 then effused, adnate, at first tomentose, circumference flaxy and 

 of the same colour inclining to be whitish. Hymenium waxy- 

 soft, papillose, slightly bristly becoming smooth. 



On rails, dead wood, fir, c. Common. 



Name cceruleum, azure-blue. Fr. Hym. Eur. p. 651. Berk. Out. p. 274. 



C. Hbk. n. 930. S. Mycol. Scot. n. %%$.Letell. Suppl. t. 630. Roth. Catal. 



2. t. 9. /. 2. SOW. t. 350. 



18. C. atro-virens Fr. Black-green, irregularly effused, tomen- 

 tose beneath and at the circumference, of the same colour. 

 Hymenium (found only as a barren cinereous pellicle). 



On sticks in woods. Rare. 



Name ater, black ; vireo, to be green. Fr. Hym. Eur. p. 651. Berk. 

 Out. p. 274. C. Hbk. n. 931. 



III. LEIOSTROMA. Agglutinated (rarely when mature becoming 

 free), &c. 



* Waxy, when fertile facing the ground, &*c. 



19. C. calceum Fr. White, effused, agglutinated, waxy, very 

 smooth, circumference similar. Hymenium even, smooth, when 

 dry cracked, rigid. 



Very polymorphous. The colour varies clay and whitish inclining to 

 fuscous. Hymenium sometimes broken up into minute lumps. 



On pine wood. Common. Oct.-Feb. 



Name calx, lime. Chalk-white. Fr. Hym. Eur. p. 652. Berk. Out. p. 

 274. C. Hbk. n. 933. S. Mycol. Scot. n. 887. 



20. C. puberum Fr. White or clay-colour, broadly effused, 

 waxy, closely adnate, indeterminate. Hymenium even, velvety 

 with short bristles, cracked when dry. 



Like C. calceum, differing only in the hymenium being velvety with bristles. 

 Very thin, separable from the matrix only in small fragments. 



On dead wood. Aboyne. Forres. Glamis. 



