150 BRITISH DISCOMYCETES. 
Peziza lacustris—Fries, “Sys. Myco.,” ii. p. 143; Nyl., 
“Pez. Fenn.,” p. 62; Cooke, “ Handbk.,” No. 2101. Nap- 
tera lacustris—Fries, “Summa Veg. Scan.,” p. 359; De 
Not. in “Comm. Soe. Critt. Ital.” 5, 1863, p. 375; non 
Fekl., “Symb. Myco.,” p. 292; nee Curr., “ Linn. Trans.,” 
vol. 25, p. 158. Patellaria aquatica—Curr., “ Linn. 
Trans.,” vol. 25, p. 155, t. 25, £ 23; “Scott. Nat.,” vi. 163. 
Mollisia lacustris—Gill, “ Champ.,” p. 180. 
Exs.—Fries, “Sel. Suec.,” No. 173; Rabh., “Fung. 
Eur.,” No. 281. 
On culms of Scirpus, Arundo, ete. 
When young adnate, plano-convex, 4 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, l. ¢.). 
After comparing the original specimen of Patellaria 
aquatica (Curr.) with an original specimen of Fries, “Sel. 
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). 
(b) Sporidia fusiform. 
4, Belonidiwm eacelsius. (Karst.) 
Cups gregarious, convex, livid or cinereous white, or 
pallid; when dry concave, the same colour or becoming 
blackish ; hymenium whitish or pallid; asci fusiform- 
clavate; sporidia 8, elongate-fusiform, ends sub-acute, 
multiguttulate, becoming multiseptate, 50—65 x 4—5y; 
paraphyses filiform, branched. 
eziza, eacelsior—Karst., “Mon. Pez.,” 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 § a line broad. This has a pseudo- 
