117 
BRITISH PYRENOMYCETES. 
By G. Massee. 
( Continued from p. 39.) 
Sub-Fam. 2. ROSFLLINIjF. Perithecia sub-superficial, 
smooth, naked ; for the most part carbonaceous. 
Gen. 1. PSXLOSPHJERXA. Perithecia naked, sporidia hya- 
line, continuous, or septate. 
* Zignoina. Sporidia continuous , hyaline , guttulate. 
P. seriata, Curr ., Sacc. Syll. 3648 ; Hdbk. 2668. 
On rotten wood. 
P. ostioloidea, Cke ., Sacc . Syll. 3651. 
On Diatrype. Forden. 
P. collabens, Curr., Sacc. Syll. 3658; Hdbk. 2586. 
On bark and wood. Weybridge, Twycross, Forres. 
** Leptospora. Sporidia continuous , hyaline , pseudoseptaie. 
P. spermoides, Fr ., Sacc. Syll. 3565 ; Hdbk. 2576. 
On decaying stumps. Common. 
Bertia. Perithecia rugulose, sporidia uniseptate , hyaline. 
P. moriformis, Tode., Sacc. Syll. 2272 ; Hdbk. 2577. 
On wood, branches, &c. Common. 
P. lichenicola, Not., Sacc. Syll. 2276. 
On thallus of Solorina crocea. Ben Lawers. 
|| Melanopsamma. Perithecia even, sporidia uniseptate , 
hyaline. 
P. pomiformis, Pers., Sacc. Syll. 2248 ; Hdbk. 2580. 
On dead wood. Elmhurst, Twycross, Shere, Shrewsbury, 
Gopsall. 
P. pustula, Curr., Sacc. Syll. 2251 ; Hdbk. 2582 (= perexigua, 
Curr.). 
On wood. Bungay, Kew. 
*££ Zignoella. Sporidia rrmlti-septate , hyaline. 
P. Keitii, Berk., Sacc. Syll. 3620. 
On rotten cordage. Glasnevin, Dublin. 
P. pulviscula, Curr., Sacc. Syll. 3627 ; Hdbk. 2587. 
On wood. Weybridge, Kew, N. Wootton. 
P. rhytidodes, B. Br., Sacc. Syll. 3640. 
On ash. Batheaston. 
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