410 LICHENACEI. [LECANORA. 
Var. (6. campestris Nyl. Flora, 1873, p. 198.—Thallus granuloso- 
verrucose, greyish-white or grey. Apothecia small or submederate, 
the thalline margin entire or at times subcrenulate.—Cromb. Gre- 
villea, xviii. p. 68.—L. subfusca {. campestris Mudd, Man. p. 147; 
Cromb. Lich. Brit. p.51. L. subfusca torma argentata Leight. Lich. 
Fi. p. 201, ed. 3, p. 186 pro parte. Lecanora subfusca Hook. Fl. 
Scot. ii. p. 47 pro parte (2. ¢. saxicola); Sm. Eng. Fl. v. p. 189 pro 
parte (t.¢. saxicola). Lichen punctatus Dicks. Crypt. fasc. iii, p. 15, 
Eng. Bot. t. 450, With. Arr. ed. 3, iv. p.15, according to specimens 
in Hb. Sowerby, is a young state of this variety with darker 
apothecia.— Brit, Evs.: Larb. Lich. Hb. n. 99. 
Differs from the type, of which probably it is only a saxicolous form, 
in the thallus being more unequal (though transition-states are not 
wanting) and in the thalline margin of the apothecia being occasionally 
slightly crenulate. The thallus is rarely somewhat expanded and is 
usually well fertile. It is at times the host of a parasitic Endococcus 
hereafter to be described. 
Hab. On rocks and walls, rarely on the ground, from maritime to 
upland districts.—Distr. General and common throughout Great Britain 
and Ireland, as also in the Channel Islands—B. M.: St. Ouen’s Bay, 
Island of Jersey; The Vale, Island of Guernsey. Near Yarmouth, 
Suffolk; Hastings, Sussex; Shanklin, Isle of Wight; Anstey’s Cove, 
Torquay, S. Devon; Withiel and near Penzance, Cornwall; Stormy 
Down, Glamorganshire ; Llandyssil; Cardiganshire ; Barnsley Park, near 
Cirencester, Gloucestershire; Grecha Mt., Isle of Man; near Ayton, 
Cleveland, Yorkshire; Eglestone, Durham; Helsington, Cumberland ;' 
near Kendal, Westmoreland; Chollerford, Northumberland. ? West 
Water, Fifeshire; Achosragan Hill, Appin, Argyleshire; Glen Lyon 
and Glen Fender, Perthshire; Cove, Ri acardianhine: near Aberdeen. 
Cork Harbour and Kinsale, co. Cork; near Kilkee, co. Clare; Bally- 
nahinch, Dawros Bridge and Lettermore, Connemara, co. Galway, 
_ 87. L. spodophzoides Nyl. Flora, 1872, p. 250, nota 2, nomen.— 
Thallus determinate, thinnish, rugulose, greyish (K + yellowish, 
CaCl—); hypothallus whitish, byssino-radiating. Apothecia small, 
plane, black-sanguineous, often crowded and angulose, the thalline 
margin subentire or subcrenulate; spores ellipsoid, 0,012-16 mm. 
Iong, 0,007-8 mm. thick; paraphyses moderate, subarticulate, sub- 
clavate at the agglutinate apices; epithecium deep yellow-brown ; 
hymenial gelatine (especially the thece) bluish with iodine.—Z, sub- 
fusca var. spodopheoides, Cromb. Grevillea, i. p. 171; Leight. Lich. 
Fi. ed. 3, p. 188. 
Approaches var. 8 of the preceding species, but the characters of the 
hypothallus, apothecia, and paraphyses render it distinct. In the single 
entire specimen gathered the thallus-is but of moderate size, and is 
distinctly limited by the hypothallus, The spermogones are frequent, 
with spermatia 0,025 mm. long, 0,0006 mm. thick, fide Nyl., to whom I 
owe also the diagnosis of the plant. g 
Hab. On a mica-schist wall in an upland district.—Distr. Very local 
and rare in the Central Grampians, Scotland.—B.M.: Craig Tulloch, 
Blair Athole, Perthshire, 
