SPHjKRIACEI.

387

On birch, etc. Very common. Sometimes elliptic.

9. H. marginatum, B.; hemispherical, confluent, at lengthblack, of the same colour within; each ostiolum seated in alittle margined disc: {no. 595.)— Schwein. Journ. of Ac. t. 2.

/. 8 .

On decaying wood of British growth, in the conservatory atChatsworth.

10. H. cohserens, Fr.; confluent, convexo-plane, at firsteven, dirty-brown, then black within; pcrithecia at lengthrather prominent, papillate.

On dead branches. Not common.

11. EL argillaceum, Fr .; subglobose, clay-coloured, brown-black within; perithecia slightly prominent, papillate : {no.1G9.)— Fr. Obs. i. t. 2. f. 5.

On dead ash-branches. Not uncommon.

12. H. fuscum, Fr.; convex, pulvinate, purple-brown, atlength naked, black, black-brown within; ostiola umbilicate.— Soto. t. 373. /. 9.

On hawthorn, hazel, etc. Very common.

c. Effusa.

13. rubiginosum, 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 distinctfrom it; perithecia sunk, elongated above into a distinct neck,and frequently rostrate.

a. Lignosat.

1. bullata, Fr.; Bolt. t. 122. /. 1. On willow.

2 c 2