LECANORA. ] LECANO-LECIDEEI. 415 
Var. 8. cenisia Nyl. ex Lamy, Bull. Soc. Bot. Fr. t. xxv. (1878) 
p- 409.—Thallus more or less verrucose. Apothecia usually some- 
what large and more convex, livid or yellowish-brown, slightly 
greyish-pruinose,—Cromb. Grevillea, xviii. p. 68.—Lecanora cenisia 
Ach. Lich. Univ. (1810) p. 361. 
Regarded by some authors as. the type of the species, from which it 
differs, though probably only as a form, in the character of the apothecia. 
In the single British specimen, which is well fertile, these are but small, 
not large as they are described by Acharius. 
Hab. On schistose rocks in a maritime district.—Distr. Only very 
sparingly in N.E. Scotland.—B. M.: Near Portlethen, Kincardineshire. 
Var. y. melacarpa Nyl. ew Cromb. Grevillea, i. (1873) p. 171.— 
Apothecia somewhat small, black; epithecium more or less in- 
spersed ; spores 0,013-16 mm. long, 0,007-9 mm. thick.—Z. sub- 
fusca forma melacarpa Leight. Lich. Fl. ed. 3, p. 187. 
A well-marked variety characterized by the colour of the apothecia, 
which gives it much the aspect of the following species. ; 
Hab. On mica-schist stones of a wall in an upland situation.— Distr. 
Only very sparingly on one of the Central Grampians, Scotland. —B. M.: 
Craig Tulloch, Blair Athole, Perthshire. 
93. L. coilocarpa Nyl. ea Norrl. Medd. Sillsk. pro F, et Fl. Fenn. 
i. (1876) p. 23.—Thallus determinate or subdeterminate, thin, un- 
equal or granulato-rugose, whitish or greyish-white (K + yellowish, 
CaCl—). Apothecia small or submoderate, concave or at length 
somewhat plane, brownish-black or blackish, the thalline margin entire 
or subentire; paraphyses slendcr, discrete, dark-brown at the apices; 
spores 0,012-18 mm. long, 0,006-9 mm. thick; hymenial gelatine bluish, 
then violet-coloured with iodine.—Cromb. Grevillea, xviii. p. 68.— 
L. subfusca form coilocarpa Cromb. Lich. Brit. p. 51; Leight. Lich. 
FI. p. 202, ed. 3, p. 186 (excl. pinastri Scher.). L. subfusca 2. coilo- 
carpa Ach. Lich. Univ. (1810) p. 393.—Brit. Hxs.: Leight. n. 52 ; 
Mudd, n. 111; Larb. Cesar. n. 77. 
Often confounded with Z. atra, but closely allied to subspecies 
L. chlarona, from which it differs in the colour of the apothecia and the 
characters of the thallusand paraphyses. In corticolous plants, of which 
I have seen no British specimens, though these no doubt occur in the 
Scottish Highlands, the thallus is thin, but in saxicolous ones much’ 
thicker and verrucoso-diffract. The apothecia in these are numerous and 
at times crowded. 
Hab, On rocks and walls in maritime and upland districts.—Disty. 
Not uncommon in the Channel Islands and Great Britain; apparently 
rare in S. Ireland.—B.M.: Boulay Bay, Island of Jersey; Chateau’ 
Point, Island of Sark. Rusthall Common, Kent; Helmenton, Corn- 
wall; Malvern, Worcestershire ; Trellick, Monmouthshire; Barmouth, 
Merionethshire; Cwm Ffynnon Llugy and Nant Francon, Carnarvou- 
shire; Haughmond Hill, Shropshire; Ayton, Cleveland, Yorkshire ; 
