34 ACOTYLEDONS. FUNGI. 



glaucus, Lightf, p. 1072. Sow. t. 373. /. 9. f. 14. M. ligni- 



fragus. 



HAB. On decayed fruit and vegetables,, &c., common, Light/., Hopk. 

 This is the well known blue mould. 



** Caulescent. Filaments moniliform, straight, digitate. 

 2. M. digilata, glaucous, stipes simple digitate. Pers. p. 693. 



Mucor crustaceus, Lightf. p. 1073. 

 HAB. On corrupted fruit of various kinds, frequent, Lightf. 



40. DEMATIUM. 



Filaments of an indeterminate form, erect or depressed, some- 

 what fasciculate or spreading, smooth and not interwoven. 



1. D. epiphyllum, erect fasciculate subolivaceous at length pul- 

 veraceous, filaments smooth. Pers. p. 695. 



HAB. On the under surface of the dead leaves of Pinus Picea, Mr. 

 Greville. 



2. D. slrigosum, tufted tawny filaments somewhat rigid diver- 

 gent. Pers, p. 695. Byssusfulva, Lightf. p. 1002. B. bar- 

 bata, E.B. f.701. 



HAB. Upon wet half decayed wood lying in shady places, in autumn 



and winter, Lightf. 

 '3. D. violaceum, dense spreading violet-coloured. Pers. p. 697 . 



Byssiis phosphorea, Lightf .p. 1000. Aurlcularia pkqspjtofea, 



Sow. t. 350. Conferva p/iosph., Dillw. Conf. t. SS. 

 HAB. On the bark of decayed wood and sticks, in the autumn and 



winter, frequent, Lightf. 

 Almost forms a membrane, and hence Sowerby has made it an Auri- 



cularia. 



41. ERINEUM. 



Epiphyllous. Filaments rigid, collected into a subcupuliform 

 tuft impressed upon the leaves. 



1. E. acerinum^ depressed broadish reddish brown. Pers. p. 700. 

 HAB. On the leaves of Acer pseudo-Platanus, about Edinburgh. Mr. 



Greville. 



2. E. alneum, tufted dense almost scarlet. Pers. p. 701. 

 HAB. On the leaves of Betula alba on the upper surface, Mr. Greville. 



3. E. betulinum, tufted dense ferruginous. Decand. FL Gall. p. 15 . 

 HAB. On the under surface of the leaves of Betula alba, about Edin- 

 burgh. Autumn. Mr. Greville. 



42. RACODIUM. 

 Expanded, soft, with the filaments densely interwoven. 



1. R. cellare, broadly spreading very soft greenish black. Pers. 

 p. 701. Nees von Esenleck, t. 5. /. 70. Byssus seplica, 

 Lightf. p. 999. Fibrillaria v'maria, Sow. p. 432. 



HAB. Wine-vaults, upon the casks and walls, frequent, Lightf. 



