MOLLISIA. 219 



Peziza versicolor, Desm., Ann. Sci. Nat., 1853, vol. xx. 

 p. 230. 



Psendohelotium versicolor, Sacc, Syll., viii. n. 1234. 



On dead fronds of ferns, Pteris, Aspidium, &c. 



Specimen in Desmazieres, Crypt. France, ser. ii., n. 15, 

 examined. 



The ascophores rarely exceed *5 mm. in width; their 

 substance is very soft ; colour pure milk-white, but the 

 least bruising or the prick of a pin causes them to turn 

 yellow. (Desm.) 



Phillips says that he has not observed this change of 

 colour in the British specimens ; furthermore he gives the 

 spores as 10-15 x 3 /x, which is very different to that of 

 Desmazieres' species, as given above, hence the question as 

 to whether Phillips was correct in referring his specimens 

 to P. versicolor, Desm. Unfortunately I can find no speci- 

 mens in Phillips' Elv. Brit., n. 164, which is labelled 

 " Peziza versicolor, Desm. ? " 



***** On lichens. 



Mollisia epithallina. Phil. & Plow., Brit. Disc, 

 p. 173. 



Ascophore sessile or very shortly stipitate, about -J- mm. 

 across, concave then expanded but with the margin slightly 

 raised, pallid-white or tinged yellow, amber-colour when 

 dry, glabrous, epithecium thin, parenchymatous, cells poly- 

 gonal, more or less elongated radially, margin entire ; asci 

 narrowly clavate, base slender, spores 8, irregularly biseriate, 

 hyaline, smooth, narrowly elliptical, ends rather acute, 

 8-9 X 2 • 5 \x, often 2-4-guttulate ; paraphyses cylindrical 

 or very slightly thickened upwards, 1*5 /x thick. 



Peziza miliaris, Wallr., Phil. & Plow., Grev., iv. p. 121. 



Peziza (Mollisia) epithallina, Phil. & Plow., Grev., vi. 

 p. 24. 



Pezizella epithallina (P. & P.), Sacc, Syll., n. 1167. 



On upper surface of Peltigera canina. 



Scattered or gregarious. Some of the ascophores are 

 shortly but distinctly stipitate. Specimen in Herb. Kew 

 from Plowright examined. 



