198 



BRITISH DISCOMYCETES. 



dry ; in moist weather distending the small slit in the 

 bark of the petiole till it attains its round form, when 

 the margin projects over the edge of the fissure. 



Wherever decaying sycamore-leaves are found. 



Name Erumpo, to burst out; from its erumpent 

 habit. 



SUBGENUS VI. PSEUDO-PEZIZA. Fckl. 



Cups immersed, erumpent when moist, orbicular, 

 glabrous, soft, plane or slightly concave ; margin darker, 

 sometimes bordered by the lacerated epidermis of the 

 host-plant ; sporidia subglobose, elliptic, oblong or pyri- 

 form. (Plate VI. fig. 36.) 



Name i//a;oc, false, and peziza ; deceptive peziza, 

 resembling Phacidium 



ARRANGEMENT OF THE SPECIES. 



A. Sporidia subglobose. 



(a) On herbaceous stems 



B. Sporidia elliptic or oblong. 



(a) On leaves or herbaceous steins 

 0. Sporidia pyriforin. 

 (a) On leaves 



KEY TO THE SPECIES. 



Hyraenium greyish- white : on Euphorbia . . 

 Hymenimn smoky-yellow : on Trifolium . . 

 Hymenium pallid-testaceous : on Cerastium 

 Hymeuium ochraceous : on Ranunculus 



A. SPORIDIA SUBGLOBOSE. 



species 18 

 49, 50 

 51 



Euphorbias. 



Trifolii. 



Cerastiorum. 



Ranunculi. 



(a) On herbaceous stems. 

 48. Mollisia Euphorbice. (B. and Br.) 



Minute, erumpent, sessile, brownish-black ; hymenium 

 concave, white or greyish-white ; margin prominent, in- 

 curved ; asci broadly clavate, narrowing abruptly at the 

 base ; sporidia 8, globose-elliptic, S/LL long, and nearly as 

 broad ; paraphyses filiform, stout, clavate summits, filled 

 with granular protoplasm. 



Peziza Euphorbice B. and Br., "Ann. Nat. Hist ' ; 

 No. 1829; " Grevillea," viii. p. 8. 



