SPHiEKlACEl. 387 



Oil birch, etc. Very common. Sometimes elliptic. 



9. H. marginatum, B. ; hemispherical, confluent, at length 

 black, of the same colour within ; each ostiolum seated in a 

 little margined disc : {no. 595.) — Schwein. Journ. of Ac. t. 2. 

 /.8. 



On decaying wood of British growth, in the conservatory at 

 Chatsworth. 



10. H. cohserens, Fr. ; confluent, convcxo-planc, at first 

 even, dirty-brown, then black within ; perithecia at length 

 rather prominent, papillate. 



On dead brandies. Not common. 



11. H. argillaceum, Fr.; subglobose, clay- coloured, l)ro\vii- 

 black within; perithecia slightly prominent, papillate: [no. 

 169.)— Fr. Obs. i. /. 2. /. 5. 



On dead ash-branches. Not uncommon. 



12. H. fuscum, Fr.; convex, pulvinate, purple-brown, at 

 length naked, black, black-brown within ; ostiola umbilicate. 

 —Sow. t. 373. /. 9. 



On hawthorn, hazel, etc. Very common. 



c. Effusa. 



13. rubigiiiosum, Fr. On decorticated trunks, etc. 



14. atro-purpureum, Fr. On rotten wood, rare. 



15. serpens, Fr.; Sow. t. 373./. 10; 372. /. 11. On dead wood. 



16. coprophilum, Fr. (no. 596). On dung. 



17. udum, Fr. On rotten branches. 



292. DIATRYPE, Fr. 



Stroma partly formed from the matrix, and not distinct 

 from it ; perithecia sunk, elongated above into a distinct neck, 

 and frequently rostrate. 



a. Li(jiiosce. 

 1. bullata, Fr.; Bull. I. 122. /. 1. On willow. 



2 c 2 



