42 



BRITISH DISCOMYCETES. 



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

 garian by not being gelatinous or subcartilaginous ; from 

 Dermatece by the softer texture; and from PatellaricB 

 by colour, texture, and form. 



Name Pezica (from -n-^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 OP THE GENERA IN 

 SERIES I. XUD^E. SERIES II. 



Clothed with hairs. 



VIII. Laclmea. 

 IX. Laclinella. 

 X. Tapesia. 

 XL Desmazierella. 

 XII. Pirottxa. 



Not clothed with hairs. 

 I. Peziza. 

 II. Psilopezia. 



III. Hymenoscyplia. 



IV. Chloro*plenium. 

 V. Belonidium. 



VI. Helotium. 

 VII. Mollisia. 



KEY TO THE GENERA OF 



Applanate, irnmarginate, 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 largo 



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 tapesiurn. 



Pilose fleshy, mostly large or medium size 



Villous or tomentose, mostly small, not black 



Setulose, blackish 



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

 \Hymeuium not setulose 



Psilopezia. 



1 



2 



4 



Peziza. 



Mollisia. 



3 



Hymenoscyphn. 



Chlrospleniuni. 



Helotium. 



Belonidium. 



Tapes/a. 



Lachnea. 



Lachnella. 



5 



Desmazieretta. 



Pirottxa. 



SERIES I NUD^E. 



Fleshy or fleshy-membranaceous, externally glabrous, 

 pruinose, or floccoso-furfuraceus. 



