42 



BRITISH DISCOMYCETES. 



receptacle ; from Ascobolce by the fixed asci ; from Bul- 

 garice by not being gelatinous or subcartilaginous ; from 

 Devmateoe by the softer texture; and from Patellarice 

 by colour, texture, and form. 



Name — Pezica (from iri^a, the foot, bottom, base, 

 that which rests on its base, sessile), a word used by 

 Pliny to denote various kinds of puff-balls (vide 

 Houghton, " Ann. and Mag. Nat. Hist.," 1885). The name 

 has now acquired a widely different meaning. 



Order of the Genera in Peziza. 

 Series I. — Xud^;. Series II. — Vestit^e. 



Key to the Genera of PEZiziE 



Applanate, immarginate, affixed by the centre 



More or less cup-shaped 



(Exterior not hairy (though sometimes tomentose) 

 (Exterior hairy, villous, or tomentose 



Fleshy, for the most part large ; sporidia large 



Fleshy, or rarely waxy, sessile ; sporidia minute 



Waxy, or between waxy and fleshy. . 



Stem distinct and slender, not green 



Stem distinct and slender, green 

 \ Stem absent, or short and thick ; sporidia simple, or 



rarely 1-septate 

 ^Stem absent or short, sporidia 3 or more septate 



Seated on a distinct tapesium 



Pilose fleshy, mostly large or medium size 



Villous or tomentose, mostly small, not black 



Setulose, blackish 

 - (Hymen ium, as well as exterior, setulose . . 

 ' \Hymenium not setulose 



1. 



2. 



Psilopezia. 



1 



2 



4 



Peziza. 



Mollisia. 



3 



Hymenoscypha. 



CIdrosplenium. 



Helotium. 



Belonidium. 



Tapesia. 



Lachnea. 



Lachnella. 



5 



Desmazierella. 



Pirott-xa. 



Series I.— NUD^E. 



Fleshy or fleshy-membranaceous, externally glabrous, 

 pruinose, or floccoso-furfuraceus. 



