150 BRITISH DISCOMYCETES. 



Peziza lacustris Fries, "Sys. Myco," ii. p. 143; Nyl, 

 "Fez. Fenn," p. 62 ; Cooke, " Handbk.," No. 2101. Nip- 

 tera lacustris Fries, " Summa Veg. Scan.," p. 359 ; De 

 Not. in " Comm. Soc. Critt. Ital.," 5, 1863, p. 375 ; non 

 FckL, " Symb. Myco," p. 292 ; nee Curr., " Linn. Trans.," 

 vol. 25, p. 153. Patellaria oquatica Curr., "Linn. 

 Trans," vol. 25, p. 155, t. 25, f. 23; "Scott. Nat," vi. 163. 

 Mollisia lacustris Gill, " Champ," p. 130. 



Exs. Fries, " Scl. Suec," No. 173; Rabh, "Fung. 

 Eur," No. 231. 



On culms of Scirpus, Arundo, etc. 



When young adnate, plano-convex, J a line broad, 

 even, smooth, black, then dilated, plane, free beneath 

 except the central point of adhesion, externally sooty 

 black, quite black when dry ; margin at first connivent, 

 then open, inflexed, entire ; disc turgid, soft, when moist 

 dingy, when dry black (Fries, I. c.). 



After comparing the original specimen of Patellaria 

 aquatica (Curr.) with an original specimen of Fries, " Scl. 

 Suec," No. 173, in the Kew Herbarium, there can be no 

 possible doubt of their identity. 



Name Lacus, a lake ; from the habitat. 



St. George's Hill, Weybridge ! and Paul's Cray 

 Common (Mr. F. Currey). 



(6) Sporidia fusiform. 



4. Belonidium excelsius. (Karst.) 



Cups gregarious, convex, livid or cinereous white, or 

 pallid ; when dry concave, the same colour or becoming 

 blackish ; hymeniuni whitish or pallid ; asci fusiform- 

 clavate ; sporidia 8, elongate-fusiform, ends sub-acute, 

 multiguttulate, becoming multiseptate, 50 65 X 4 5/u; 

 paraphyses filiform, branched. 



Peziza excelsior Karst, "Mon. Fez," p. 165. Mollisea 

 excelsior Karst, " Myco. Fenn," p. 199 ; " Grevillea," 

 viii. p. 102 ; Steven, " Myco. Scot," p. 326. 



On dead culms of Arundo. August. 



Cup \ to J a line broad. This has a pseudo- 



