BRITISH LICHENS

LECIDEA LECIDEACEJE 49
Considered by Nylander to be related to L. sangllineoatra, but
separated by the internal characters of the apothecium. In the single
small specimen seen, the apothecia are numerous, 8ubminute, at length
convex and immarginate.
Hab. On schistose stones of a wall in a mountainous district.-
B. M. Glencorbot, near Kylemore, Galway (the only localIty).
71. L. botryiza Nyl. ex Stirton in Grevillea ii. 71 (1873).­
Thallus effuse, thin, minutely areolate-rimulose or as if minutely
appressed-squamulose, greenish-white (K -, CaCl-). Apothecia
small, superficial, somewhat prominent, convex, simple or
conglomerate and verrucose, brown; paraphyses coherent;
epithecium colourless; hypothecium brown; spores ellipsoid,
6-9 fL long, 3'5--4'5 fL thick; hymenial gelatine tawny-wine-red
with iodine.-Leight. Lich. Fl. ed. 3, 247.
Closely allIed to L. botryocarpa Nyl., which does not occur in Great
Britain, externally agreeing with it in the thallus and apothecia. When
conglomerate, the hypothecia are confluent in one common brown
hypothecium in each glomerule of the apothecia. Specimen not seen.
Hab. On schistose rocks in a mountainous district.-Distr.
Extremely local and scarce On the S. Grampians, Scotland (Ben
Voirlich, Perthshrre).
72. L. semipallens Nyl. in Flora lix. 234 (1876).-Thallus effuse,
thin, rimulose, sordid-whitish, whitish or glaucous (K + yellowish,
CaCl-). Apothecia small, convex, immarginate, pale or livid;
epithecium and hypothecium colourless; spores minute, ellipsoid,
6-9 fL long, 3'5--4'5 fL thIck; hymenial gelatine tawny-wine-red
with iodine.-Cromb. in Grevillea v. 26; Leight. Lich. Fl. ed. 3,
298.
Exsicc. Larb. Lich. Rb. n. 68 .
. An inconspicuous plant; the apothecia are more or less scattered,
One of the speCImens seen is tinged with peroxide of iron.
Hab. On quartzose and schistose rocks in streams.-Distr. Found
only in W. !reland.-B. M. Near Kylemore, Lough Inagh and Twelve
Pms, Connemara, Galway.
73. L. ealliearpa Larb. ex Leight. Lich. Fl. ed. 3, 266 (1879).­
Thallus pale-whitish sulphur-coloured, pulverulent granular,
effuse (K -, CaCI + reddish). Apothecia pallid, flesh-coloured,
minute, clustered or scattered, convex; hypothecium colourless;
paraphyses coherent, apices colourless; spores not seen.
Specimen not seen.
Very similar to the preceding, except in the thalline reaction. The
absence of spores makes idenhficatlOn almost impossible.
Hab. On damp perpendicular rocks at Glencorbot, near Kylemore,
Connemara, Galway.
74. L. polio des NyI. in Flora lviii. 10 (1875).-Thallus blackishor
greenish-grey, thin, opaque, wrinkled-granulate. Apothecia
n E