431 FUNGUS-FLORA. 



Sessile, somewhat caespitose or scattered, at first closed, 

 then expanding, usually irregular, margin entire or lobed, 

 often reflexed, flesh quite thin, 1-2-5 cm. across; excipulum 

 composed of septate, interwoven hyphae ; externally pallid, 

 the free portion almost or quite glabrous, basal portion 

 giving off numerous septate branched, thin- walled, colourless 

 hyphae that fix the fungus to the matrix ; disc white, or 

 more or less deeply tinged rosy, lilac or ochraceous ; asci 

 elongated, narrowly cylindrical, base tapering, 8-spored ; 

 spores obliquely 1-seriate, hyaline, continuous, usually 

 2-guttulate, elliptical, ends obtuse, smooth, 11-12 x 7 p.; 

 paraphyses linear, slightly clavate, hyaline. 



Peziza domiciliana, Cke., Gard. Chron., 1877. 



On damp, plastered walls, &c. 



Authentic specimens from the author examined. 



Distinguished among the large species of Peziza by the 

 very thin, delicate ascophore, also the small spores. 



Peziza mellea. Cke. & Plow., Grev., v. p. 119 ; Cke., 

 Mycogr., fig. 383; Phil., Brit. Disc., p. 78; Sacc., Syll., viii. 

 n. 321. 



Solitary, sessile, hemispherical and closed at first, becom- 

 ing plane but the margin slightly raised and incurved, 

 rather thin, disc honey-colour, externally darker, glabrous, 

 11^ cm. across ; cortex parenchymatous, cells irregularly 

 polygonal, 15-25 /x, diameter; asci cylindrical, slightly 

 narrowed and truncate at the apex, 8-spored ; spores smooth, 

 hyaline, continuous, elliptical, ends obtuse, 1718 x 9 p 

 obliquely 1-seriate ; paraphyst s slender, septate, hyaline, 

 tips slightly clavate. 



On decaying ash. 



Type specimen examined. 



Kesembling a small specimen of P. ampliata ; differing in 

 the smaller size of the ascophore, externally glabrous, and 

 blightly in colour. The tip of the ascus becomes deep blue, 

 the remainder very pale blue with iodine. 



Peziza ochracea. Boudier, MS. ; Cooke, Mycogr., 

 p. 225, fig. 377; Phil., Brit. Disc., p. 62; Sacc., Syll., 

 n. 278. 



Usually densely clustered ; 2-5 cm. across, sessile, closed 

 at first then expanding, often irregular from lateral pressure, 



