LACHNEA. 321 



tate, branched hyphae towards the base of the ascophore ; 

 1-3 mm. broad, closed when dry ; hypothecium and excipu- 

 lum brownish, composed of rather stout, branched and sep- 

 tate, compactly interlaced hyphae, these pass at the cortex 

 into a brown, large-celled parenchyma; asci cylindrical, 

 apex obtuse, pedicel elongated, stout, 8-spored ; spores hya- 

 line, smooth, continuous, obliquely 1-seriate in the upper 

 part of the ascus, elliptical, usually 1-guttulate, 19-25 X 

 8-10 fx; paraphyses slender, septate, apex slightly clavate. 



Peziza gregaria, Rehm, Ascoin., n. 6, but first described by 

 Winter in Hedw., 1872, p. 508. 



On the ground. 



Phillips says the spores are " externally minutely rough." 

 This I have not observed, nevertheless it may be so. Cooke 

 has figured the spores with a granular epispore in Fung. 

 Brit. Exs., ed. ii., n. 368, but I find the epispore to be quite 

 smooth in his specimens ; the contents, however, are coarsely 

 granular. Some of the spores are represented as having a 

 granular epispore in Cooke's figure of this species in Myco- 

 graphia, fig. 123. 



Specimens examined in Renin's Ascomv., n. 6 ; Cke., Fung. 

 Brit. Elv., ii. n. 368; and Phillips, Elv. Brit., n. 111. 



Lachnea cretea. Phil., Brit. Disc, p. 229; Sacc, 

 SylL, viii. n. 749. 



Scattered or gregarious, sessile, hemispherical and closed 

 at first, finally quite plane, 1 ■ 5-4 mm. across ; disc white, 

 externally and the margin setulose, hairs spreading, straight, 

 tapering to a point, septate, wall slightly thickened, pale 

 brown, 100-180 X 5-7 /x ; cortex parenchymatous; asci 

 narrowly cylindrical, apex blunt, 8-spored ; spores obliquely 

 1-seriate, hyaline, smooth, continuous, usually 2-guttulate, 

 elliptical, 12-15 x 7-8 /x ; paraphyses slender, septate, hyaline, 

 slightly thickened upwards. 



Peziza cretea, Cooke, Trans. Bot. Soc. Edin., 1877 ; p. 46, 

 t. iii., K-N; Mycogr., fig. 362. 



On plaster walls and ceilings. 



Type specimen examined. 



Disc white, surrounded by a pale yellowish brown fringed 

 margin ; the hairs are paler in colour and more slender than 

 in most species, the sDores are also comparatively small. 



VOL. iv. y 



