22 EPHEBACEI. [EvopsIs, 
Tribe II. PYRENOPSEI, Ny]. ew Stiz. St. Gall. Nat. Ges. 
1876, p. 192 (cfr. Cromb. Grevillea, v. p. 76). 
Thallus effuse, thinly granulose or subsquamulose, rarely sub- 
fruticulose, within rubricose ; gonimia tunicated, single or several 
in gelatino-cellular, nodulose and variously arranged syngonimia ; 
medullary filaments wanting. Apothecia small or minute, lecano- 
rine or pyrenocarpous, paraphyses jointed or simple; spores 8ne, 
very rarely numerous, simple, ellipsoid, colourless. Spermogones 
innate, with simplish sterigmata. 
This tribe differs considerably in external appearance alike from the 
preceding and the following, though in the structure of the thallus and 
the character of the gonimia it nearly agrees with them. Both genera of 
which it consists occur in Britain, and may readily be recognized by the 
blood-red colour of the thallus, which becomes apparent when it is 
moistened. 
ATT 
i pp 
3. EUOPSIS Nyl. = 
Flora. 1875, p. 363 (\ 
(cfr. Cromb. Gre- 
villea, v. p. 76).— 
Thallus thinly crus- 
taveous, fragile, 
granulato - areolate; 
gonimia simple or 
several in nodulose 
syhgonimia. Apo- 
thecia _lecanorine, MD 
small or moderate, h Fy 
paraphyses articu- Fig. 3. 
late; spores Sn; fyopsis hemalea Nyl.—a. Section of the thallus, x 200. 
hymenial gelatine 0. Ywo gonimia, x 350. ¢. Two syngonimia, 
bluish with iodine. x a d. ie of sree ey x 30. BY Sec- 
GF 100 art 0 menium, wi neca an ra- 
Spermogon es with eee Ms 350. ? Bootes, x 500. g. Bastin, of 
oblong minute sper- 
bs spermogone, X 30. A. Sterigmata and spermatia, 
matia, x 500. 
Gs 
é 
The old genus Pyrenopsis Nyl. has lately received so many additions 
that it has been broken up by its author into several genera. The 
present genus is well distinguished from Pyrenopsis by the lecanorine 
apothecia and the jointed paraphyses. 
1. E. heamalea Nyl. Flora, 1875, p. 363.—Thallus indeter- 
minate, granulose, thinnish, verrucoso-diffract, dark blood-red. 
Apothecia moderate, plane or convex, somewhat shining, subcon- 
colorous, or rather paler, the thalline margin thin, at length 
excluded ; spores simple, 0,011-16 mm. long, 0,006-7 mm. thick ; 
hymenial gelatine, especially the thece, deep-blue with iodine.— 
Cromb. Grevillea, xv. p. 10.—Pyrenopsis heemalea Nyl., Strn. 
Grevillea, ii. p. 71: Cromb. Journ. Bot. 1874, p. 332; Leight. 
ve 
