SOLORINA. ] PELTIGEREL. 281 
white, spongioso-tomentose, affixed by long scattered rhizine ; lobes 
rounded, incised, or slightly crenate at the margins. Apothecia 
urceolato-depressed, moderate, brown or blackish-brown, immar- 
ginate; spores 4ne, ellipsoid or oblong, reddish-brown, 0,032-50 mm. 
long, 0,018-27 mm. thick.— Gray, Nat. Arr. i. p. 429; Hook. Fl. 
Scot. ii. p.36; Sm. Eng. Fl. v. p.214; Tayl. in Mack. Fl. Hib. ii. 
p. 153; Mudd, Man. p. 85, t. i. f. 24; Cromb. Enum. p. 29; Leight. 
Lich. FL. p. 112, ed. 3, p. 106.—Lichen saccatus Linn. Fl, Suec. (1755) 
p- 1102; Lightf. Fl. Scot. ii. p. 855; Huds. Fl. Angl. ii. p. 548 ; 
Eng. Bot. t. 288; With. Arr. ed. 3, iv. p. 67. Lichenoides lichenis 
facie, peltis acetabulis immersis Dill. Muse. 221, t. 30. f. 121.— Brit. 
Exs.: Mudd, n. 63; Leight. n. 111; Cromb. n. 47; Bohl. n. 4. 
The thallus, which is bright green when moist, becoming in old herbaria 
specimens reddish-brown, varies somewhat in texture according to habitat, 
and is sometimes more or less white-pruinose (form pruinosa Fr. Lich. 
Eu. p. 49). The saccato-impressed apothecia, which in old plants are 
occasionally somewhat large, render this species easily recognized, though 
without examination of the spores it might be confounded with 8. bispora. 
Hab. On the ground and decayed mosses, in crevices of rocks, rarely on 
the mortar of old walls, in moist shady places, in upland and subalpine 
districts—Distr, General, but not common, chiefly in W. and N. Eng- 
land, N. Wales, and on the Grampians, Scotland; scarce in S.W. and N. 
Treland.—B. M.: Cheddar Cliffs, Somersetshire ; near Buxton, Derby- 
shire; Apes Tor, Staffordshire ; Whitecliffe Rocks, near Ludlow, Shrop- 
shire; Whernside and Bolton Woods, Yorkshire; Cwm Bychan, 
Merionethshire ; Garn, Denbighshire; Island of Anglesea ; Teesdale, 
Durham; Kentmere, Westmoreland; Alston, Cumberland. Head of 
Loch Awe and Island of Lismore, Argyleshire; Killin, Ben Lawers, 
Craig Tulloch, Perthshire; Canlochan Glen, Forfarshire ; Craig Cluny, 
Carr Rocks, and Morrone, Braemar, Aberdeenshire. Bandon Hill, co. 
Kerry ; Ben Bulben, co. Sligo; near Belfast, co. Antrim. 
3. 8. spongiosa Nyl. ex Carroll, Journ. Bot. 1865, p. 288.— 
Thallus suborbicular, squamulose, dark-green when moist, greyish- 
brown when dry; squamules small, suberect, minutely inciso-lobed 
and crenate, at length becoming granulato-crustose. Apothecia 
deeply urceolate, becoming nearly plane, dark chestnut-coloured or 
almost blackish, bordered externally by a thinnish, granulate, 
thalloid margin; spores 4nz, ellipsoid, brownish, 0,030-0,050 mm. 
long, 0,018-0,028 mm. thick.—Cromb. Lich. Brit. p. 30.—Collema 
spongiosum Sm. Eng. Fl. v. p. 214. Polychidium spongiosum Gray, 
Nat. Arr. i. p. 402. Lichen spongiosus Sm. Eng. Bot. 1805, t. 1374. 
Solorina linbata (Somm.), Mudd, Man. p. 85; Leight. Lich. FI. 
p. 113, ed. 3, p. 107. 
A singular-looking plant, sometimes regarded as a variety of S. saccata, 
with which perhaps it is connected by intermediate states, traces of the 
normal thallus being occasionally seen around the apothecia. It differs, 
however, from it in the squamulose thallus, and more slightly in the mar- 
gined apothecia and the thinner spores. The large and sometimes numerous 
apothecia become nearly plane when old. 
Hab. On the ground among rocks, and on turf walls, in upland districts: 
—Distr. Rather local and scarce, chiefly in N. Enyland, among the: 
