ACETABULA. 451 



Leucoloma leuculentum (Cooke), Rehm, Ascom., u. 351. 



On the ground under trees, &c. 



Solitary or scattered. The spores are described as smooth 

 by Cooke, and also by Phillips, and this is usually the case, 

 and with two large oil-drops, but a careful examination of 

 the type specimen showed the spores in some of the asci are as 

 described above. The apores in many species of Peziza are 

 very treacherous in this respect ; remaining perfectly smooth, 

 whereas now and again a few asci occur in which the spores 

 have the epispore distinctly ornamented. 



P.fibrillosa, Curr., externally much resembles the present 

 species, but differs in the cylindrical p?iraphyses having a 

 spherical, and not clavate apex. 



ACETABULA. Fuckel. 



Ascophore fleshy, cup-shaped at maturity, glaliroas or 

 scurfy ; stipitate, stem stout, often ribbed ; hypothecium 

 composed of densely interwoven, septate hyphae; cortex 

 parenchymatous ; asci cylindrical, 8-spored ; spores elliptical, 

 hyaline, continuous, 1-seriate ; paraphyses present. 



Acetabula, Fuckel, Symb. Myc., p. 330. 



Peziza, or a section of Peziza of authors. 



The distinct, stout stem is usually furnished with more 

 or less strongly raised ribs, which frequently pass for some 

 distance up the outside of the ascophore in the form of 

 branching veins. 



Acetabula vulgaris. Fckl., Symb. Mycol., p. 330; 

 Sacc., Syll., viii. n. 189. 



Ascophore stipitate, cnp-shaped, fleshy, rather tough, 

 disc dark umber-brown, externally paler, and minutely 

 scurfy or flocculose ; mouth somewhat contracted; 35 cm. 

 broad, 2-5-3-5 cm. high ; stem 1-1-5 cm. high, often 1 cm. 

 thick, imperfectly hollow, with parallel or anastomosing 

 ribs, which continue for some distance up the ascophore as 

 branching veins, pale umber; cells of the cortex give off 

 short, rather closely septate hyphae in groups ; asci cylin- 

 drical, 8-spored ; spores obliquely 1-seriate, hyaline, smooth, 

 broadly elliptical, ends obtuse, with a very large oil-globule, 



2 G 2 



