DERMATEA. 348 
The cups break through transverse slits in the bark, 
forming elongated groups, arising from a common stroma; 
within they are cinnamon-yellow. 
Name—After the Rev. W. Houghton. 
Lilleshall, Salop! (Rev. W. Houghton). 
8. Dermatea rhabarbarina. (Berk.) 
Minute, scattered, erumpent, plane or slightly convex, 
clothed with tawny meal; flesh rhubarb-colour; asci 
clavate, broad; sporidia 8, oblong or oblong-elliptic, with 
one or more large gutte, at length 1 to 2 pseudo-septate, 
16—20 x 5—7u; paraphyses numerous, clavate, brown 
at the apices, adherent. a 
Peziza rhabarbarina—Berk., “Eng. Flo.,” v. p. 197. 
Patellaria rhabarbarina—Berk., “Ann. Nat. Hist.,” 
No. *89; and “Outl,” p. 378; Cooke, “ Handbk.,” 
No. 2164. Pezicula rhabarbarina—Tul., “Select. Fung. 
Carp.,” iii. p. 183; Fekl, “Symb. Myco.,” 278. Peziza 
ardenensis—Mont., “Ann. Se. Nat.,” 1836, p. 287, t. 18, 
f. 5. Helotiwm rubi—Sprée in Rabh., “Fung. Eur.,” 
exs. 717. Pezicula Rose—Sace., “Myco. Ven. Sp.,” 1513. 
Lachnella rhabarbarina—Fries, “Summa Veg. Scan.,” 
. 865. 
Exs.—Rav., No. 46; Berk., 271; Lib., No. 231; Rabh., 
“Fung. Eur.,” No. 717, nov. ed. No. 223; FckL, “F. Rh.,” 
No. 2075; Phil, “Elv. Brit.,” No. 91; Sacc., “Myco. Ven. 
Sp.,” No. 1513; Rehm, “ Asco.,” No. 355; Winter, “Fungi 
Eur.,” 2122; Cooke, “ Fung. Brit.,” ed. ii. 656. 
On dead branches of the wild rose. 
The whole branch is sprinkled with minute scattered 
dots, resembling the shield of a Lichen, fixed by a single 
point into the bark, so that where they have been rubbed 
off a little hole is seen in the bark with raised edges, 
filled with the bright rhubarb-coloured flesh of the base 
of the cup, which can scarcely be called a stem. The 
disc is darker when dry, and quite flat, with a very 
narrow border; but when moistened it often becomes 
convex, and is then of an ochraceous hue, bordering on 
ferruginous (Berk., “Eng. Flo.”). 
