282 LICHENACEI, [SOLORINA, 
8. Grampians, Scotland (where it is plentiful) ; rare in N.E. Ireland.— 
B. M.: Buxton Dale, Derbyshire ; Whernside and Guisboro’ Moor, Cleve- 
land, Yorkshire ; Teesdale, Durham ; near Kendal, Westmoreland. Fin- 
larig, Killin, near Tummel Bridge and Craig Tulloch, Perthshire. Glen- 
ariff, co, Antrim. 
4. S. bispora Nyl. Syn. i. (1860) p. 331, t. 8. f. 42.—Thallus 
orbicular, somewhat small, subcoriaceous, subsmooth, lobato-divided, 
pale-greyish or brownish-green, white-pruinose ; beneath white, 
spongioso-tomentose, with long scattered rhizinw ; lobes rounded or 
incised and somewhat crenate at the margins. Apothecia urceolato- 
depressed, small or moderate, brown or dark-brown, immarginate ; 
spores 2ne, reddish brown, ellipsoid, 0,065-88 mm. long, 0,033- 
42 mm. thick.—Stirt. Grevillea, ii. p. 60 ; Cromb. Journ. Bot. 1874, 
p- 147; Leight. Lich. Fl. ed. 3, p. 107. 
This differs from S. saccata in the white-pruinose thallus, the two-spored 
thecz, and the much larger spores. The thallus is also rather smaller, 
often somewhat rugulose, and thicker; and the apothecia are usually 
smaller. A variety dimbata, described in Nyl. Syn. 2. ¢., which is 
analogous to S. spongiosa, has not been detected in Great Britain, 
Hab. On the ground in alpine districts.— Distr. Local and rare on the 
8. Grampians, Scotland—B, M.: Ben Lawers, Perthshire. 
Subtribe II. PELTIGERINET Nyl. Flora, 1882, p. 457 ; 
1884, p. 219. 
Thallus destitute of cephalodia; gonidial layer consisting of 
Apothecia and spores variable as in the tribe. 
gonimia. 
This also contains three 
. 7, a , 4 
genera— Nephromium, Pelti a Pe 
gera, and Solorinina—parallel \ 
to those of the preceding 
subtribe, except that the thal- 
lus is gonimiose and without 
cephalodia.  Solorinina is 
exotic. 
51. NEPHROMIUM Ny]. 
Mém. Soc. Cherb. v. (1857) 
p- 101 (nota); Syn. i. (1860) 
p. 318.—Thallus fragile, 
naked or villose beneath, 
the cortical layer there 
continuous and nerveless ; 
gonidial layer with the 
gonimia usually moniliform, 
Apothecia reniform, adnate Fig. 50. 
to the lower surface of the Nephromium levigatum Nyl.—a. Section of. 
margin of the thallus, with thallus, x 200. 6. ‘Iwo syngonimia, 
thalline margin ; thece cla- ares ¢. Theca and paraphysis, 350. 
ate; spores Sn, (1)-3- . Spores, X 500. e. Vertical section of 
vate; sp : 3 two spermogones, x 80. f. Sterigmata 
septate, fusiformi-oblong, and spermatia, x 500. 
