192 FUNGUS-FLORA. 



genera, of the present fungus, as shown in the synonymy. 

 His Fabraca litigiosa is said to be distinguished by the 1- 

 septate spores, and in the ascophores not being crowded on 

 brown spots ; but Rehm, Ascom., (559, quoted by Saccardo 

 under this form, has the ascophores densely crowded on 

 brown patches, whereas in other exsiccati the ascophores are 

 scattered, and the spores continuous. 



Pseudopeziza cerastiorum. FckL, Symb. Myc, 

 p. 291; Sacc, Syll., viii. n. 2976. 



Gregarious, epiphyllous, sessile, innate, erumpent, orbicular 

 and plane, glabrous, firm, pale reddish-yellow, sometimes 

 quite pale, up to 1 mm. across; excipulum parenchymatous, 

 cortical cells irregularly polygonal, smoky yellowish-olive, 

 7-9 jx diameter; asci clavate, apex slightly narrowed, pedicel 

 short, stout, truncate, 8-spored ; spores irregularly 2-seriate, 

 hyaline, continuous, smooth, straight, narrowly cylindric- 

 oblong, ends obtuse, sometimes very slightly widest at the 

 apex, often 2-guttulate, 9-12 x 3 /x; paraphyses slender, 

 hyaline, continuous, slightly thickened at the tip. 



Peziza cerastiorum, Wallr., Cr. Fl. Germ., p. 465. 



Mollisia cerastiorum, Phil., Brit. Disc, p. 199. 



On living or fading leaves of species of Cerastium. 



Specimen examined in Cke., Brit. Fung., n. 055. 



Pseudopeziza calthae. Mass. 



Gregarious on brown spots on the under surface of the leaf, 

 innate then erumpent, usually surrounded by the torn 

 epidermis, disc plane or convex, not distinctly marginate, 

 pale brown or greyish, -J-J mm. across ; excipulum hyaline, 

 very minutely parenchymatous ; asci broadly clavate, apex 

 slightly narrowed, base rather stout, often rather deformed 

 or irregular, 8-spored ; spores irregularly 2-seriate, hyaline, 

 smooth, continuous, narrowly elliptic- oblong, or slightly 

 widest above the middle and with a clavate tendency, ends 

 obtuse, often 2-guttulate, 15-20 x 6-8 fx; paraphyses fili- 

 form, hyaline, about 2 /x thick, apex not thickened, sometimes 

 branched. 



Pliacidium calthae, Phil., Grev., viii. p. 103 ; Phil., Brit. 

 Disc, p. 391 ; Sacc, Syll., viii. n. 2951. 



On fading leaves of Caltlia palustris. 



Authentic specimen from Phillips examined. 



