318 OUTLINES OF BRITISH FUNGOLOQY. 



3. arcus, B. and Br. (?«o. 413*). Ou dead box-twigs. 



4. nuitabilis, B. and Br. (tio. 414). On dead plane-twigs. 



5. polycystis, B. and Br. {no. 415). On dead birch-twigs. 



6. oreades, Dur. and Mo)d.; Desm. (no. 12C)8). On half-dead oak-leaves. 



7. Stephensii, B. and Br. (no. 502). On dead Pteris aqidUna. 



8. fibriseda, B. {no. 743). On birch planks. 



109. DARLUCA, Cast. 



Perithecia delicate. Spores containing a row of sporidiola, 

 oozing out and forming a tendril. 



1 . filum, Cast. On various TJredines. 



2. typhoidearum, B. and Br. (no. 417). On dead leaves of Ti/p/ia. 



3. macropus, B. and Br. (no. 41 G). On dead leaves of Caricea. 



110. VERMICULARIA, Tode. 



Perithecium tliin, moutbless, generally bristly. Spores 

 vermiculate. 



1. dematium, Fr. On dead herbaceous stems. 



2. trichelia, Grev. t. 345. On dead ivy-leaves. 



3. atramentaria, B. and Br. (no. 430). Ou dead potato-stems. 



4 . circinans, B. in Gard. Chron. 1857. On skins of the white Nocera onion. 



111. DISCOSIA, Lib. 



Perithecium flat, opening at the base. Spores septate, ob- 

 liquely aristate at either end. 

 1. alnea, Lib. Sp. artocreas, Tode. Ou dead leaves. 



112. PILIDIUM, Kze. 



Perithecium scutellseform, smooth, shining, opening irre- 

 gularly. Spores curved, without any appendages. 

 1. acerinum, Kze. On dead sycamore-leaves. 



