DASYSCYPHA. 357 



** Externally brown, red, luff, or dingy. 

 Growing on dead herbaceous stems or leaves. 



Dasyscypha oedema. Mass. 



Gregarious, sessile but fixed by a narrow base, globose 

 then expanding, up to J- mm. across, altogether greyish- white, 

 soft and somewhat tremellose ; excipulum very thin and 

 delicate, parenchymatous, cells irregularly polygonal, rather 

 large ; externally minutely pubescent, hairs colourless, septate, 

 thin-walled, cylindrical or very slightly thickened at the 

 apex, often minutely rough, 5075 x 4 p.; asci clavate, often 

 curved, 8-spored ; spores irregularly biseriate, fusiform, con- 

 tinuous, hyaline, 6-10 X l'5-2 /u,; paraphyses scanty, fili- 

 form, hyaline. 



Peziza oedema, Desm., Ann. Sci. Nat., 1850, p. 4. 



Lachnella oedema, Phil., Brit. Disc., p. 271. 



Trichopeziza oedema, Sacc., Syll., viii. n. 1751. 



Parasitic on clusters of Phragmidium, on the under side of 

 bramble leaves. 



Care must be taken not to confound the present species 

 with D. dumorum, which often accompanies it on the bramble 

 leaves. 



Specimen in Desm., Crypt. France, ser. i. n. 2007, 

 examined. 



Dasyscypha dumorum. Mass. 



Scattered, sessile, but narrowed at the base, turbinate and 

 closed, then plane, about mm. across ; disc white or with a 

 yellow tinge, externally dark brown, villose, hairs cylindri- 

 cal, tips rather pointed, usually aseptate, dark brown and 

 almost opaque, 40-50 x 3-4 p., crowded ; asci small, cylindric- 

 clavate, 8-spored ; spores 2 -seriate, hyaline, continuous, 

 narrowly elliptic -fusiform, 4-5 x 1 p ; paraphyses sub- 

 cylindrical, slender, not longer than the axis. 



Peziza dumorum, Koberge, Ann. Sci. Nat., 1850, vol. xiv. 



Peziza lucifuga, B. & Br., in Herb. Berk. 



Lachnella dumorum, Phil., Brit, Disc., p. 261. 



Trichopeziza dumorum, Sacc., Syll., viii. n. 1727. 



On the under surface of dead bramble leaves. 



Near to D. nidula, but differs in the smaller asci and spores, 



