ASCOMYCES. 401 
On fruit of Prunus Padus, P. domestica, and P. 
spinosa. June. 
Name—From the host plant. 
Bishop’s Castle, Salop! Sibbertoft (Rev. M. J. 
Berkeley). 
2. Ascomyces deformans. Berk. 
Hypophyllous, rendering the matrix here and there 
bullate, sprinkled with a white powder; asci short, 
cylindrical; sporidia elliptic, hyaline, 7 x 5y. 
Ascomyces deformans—Berk. in “Outl.,” 876, t. i. 
£.9, a, B; and “Crypt. Bot.,” p. 284; Cooke, “ Handbk.,” 
No. 2233. 
Exoascus deformans—¥ckl., “Symb. Myco.,” p. 252; 
Sadebeck in Rabh., “Crypt. Flo.,” p. 6. Yaphrina 
deformans—tTul., “ Ann. Sc. Nat.,” ser. 5, vol. v. p. 129. 
Exoascus Wiesneri—Rathey, “Oest. Bot. Zeit,” 1880, 
No. 7. 
Exs.—F kL, “F. Rh.,” 2063 and 2275; Kunze, “ Fung. 
Sel.” 168, 274; Winter, “Fungi Eur.,” 2035; Rehm, 
“ Asco.,” 370. 
On living leaves of peach. June. 
Sadebeck says (J. ¢.) that this species produces the 
“witches’ besoms” on Prunus Aviwm, P. Cerasus, P. 
domestica, and P. Chamecerasus; also the so-called 
“curl” disease of Persica vulgaris, P. Amygdalus, and 
P. communis. Asci 42 to 50u long, 5 to 7u broad; the 
stem-cell 16 or more high, 5u, but mostly only 1:5 to 2u, 
broad. Notwithstanding their pointed lower ends, the 
stem-cells do not force themselves between the epidermal 
cells, but are seated on them. 
Name—Deformo, to deform. 
3. Ascomyces bullatus. B. and Br. 
Tufts punctiform, at length confluent, at first covered 
by the epidermis, which it raises in blisters ; asci clavate ; 
sporidia 8, ovate or elliptic, subgelatinous, hyaline. 
Ascomyces bullatus—B. and Br. in Berk., “Outl.,” 
p. 876; “Crypt. Bot,” p. 284; Cooke, “Handbk.,” 
2D 
