398 LICHENACEL. [LECANORA. 
and N. Ireland.—B. M.: La Coupe, Island of Jersey. Near Hastings, 
Sussex. Portlethen, Kincardineshire. Near Crookhaven, co. Cork; 
Does mt. and Dawros River, Connemara, co. Galway; Ardglass, 
co. Down. 
65. L. milvina Ach. Lich. Univ. (1810) p. 358.—Thallus effuse, 
moderate or thickish, granuloso-areolate or areolato-diffract, verru- 
culoso-unequal, brownish or brownish-black (K—, CaCl—); hypo- 
thallus thin, black. Apothecia minute, plane, crowded, brownish- 
black, the thalline margin depressed, entire; spores ellipsoid, 
0,014-20 mm. long, 0,007-12 mm. thick.—Borr. Eng. Bot. Suppl. 
t. 2662. f. 1; Sm. Eng. Fl. v. p.187; Mudd, Man. p. 144; Cromb. 
Journ, Bot. 1874, p. 147; Leight. Lich. Fl. ed. 3, p. 216 pro parte. 
—Parmelia milvina Wahl. in Ach. Meth. Suppl. (1808) p. 34.— 
Brit. Ews.: Larb. Lich, Hb. n. 25. 
_As observed by Acharius (Meth. Z.c.), this is quite distinct from L. 
sophodes in the darker, effuse thallus, the place of growth, and its general 
aspect. It differs also in the rather larger spores, and, as it constantly 
reserves its own type, may with propriety be regarded as a good species. 
"he apothecia are for the most part crowded and angulose. 
Hab. On rocks in maritime and upland districts.—Distr. Local in the 
Channel Islands, S.W. England, the S.W. Highlands and N.E. Scotland, 
as also in N.W. rend 6 M.: Vale Castle, Island of Guernsey. Near 
Penzance, Cornwall. Barcaldine, Argyleshire; 8. of Bay of Nigg, Kin- 
cardineshire. Maam Turk mts., co. Galway. 
66. L. atrocinerea Nyl. Lich. Par. (1854) n. 43; Flora, 1872, 
p- 247.—Thallus determinate, verrucoso- or granulato-areolate, 
smooth, greyish-white or dark-grey (K+ yellow, CaCl+ reddish) ; 
hypothallus black, persistent. Apothecia moderate, at first innate, 
then sessile, plane or at length convex, dark-brown or blackish, the 
thalline margin thin, subentire, at length obliterated; spores 
0,020-80 mm. long, 0,011-16 mm. thick—Cromb. Journ. Bot. 
1870, p. 97; Leight. Lich. Fl. p. 226, ed. 3, p. 216.—Rinodina 
atrocinerea Mudd, Man. p. 144, t. 2. tig. 49. Lecidea atrocinerea 
Sm. Eng. Fl. v. p. 174. Lichen atrocinereus Dicks. Crypt. fase. iii. 
(1798) p. 14, t. 9. fig. 2; With. Arr. iv. p. 19; Eng. Bot. t. 2096. 
Lecanora milvina Tayl. in Mack. Fl. Hib. il. p.134 saltem pro maxima 
parte.—Brit, Eas.: Leight. n. 146. 
Not unlike LZ. confragosa, from which it has generally not been rightly 
discriminated. It differs, however, in the firmer, usually more continuous 
thallus, in the constantly entire thalline margin of the apothecia, in the 
larger spores, and more definitely in the thalline reaction with CaCl. In 
younger plants the thallus is distinctly limited by a subplumos6-radiating 
hypothallus, and is then only subcontinuous. It is always well fertile, 
the apothecia often becoming lecideoid. The spermogones are frequent, 
with spermatia 0,007-9 mm. long, scarcely 0,002 mm. thick. 
Hab. On rocks in maritime and mountainous districts.— Distr. Rather 
local. in the Channel Islands, 8. and W. England, N. Wales, the S.W. 
Highlands and N.E. Scotland, and in S, Ireland.—B. M.: Island of 
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