LECANORA. | LECANO-LECIDEET, 377 
Ireland ;" not seen from the Channel Islands —B. M.: Hastings, Sussex ; 
Kingsbridge, S. Devon; near Penzance, Cornwall; Malvern, Worcester- 
shire ; Croesfaen, near Monmouth; Aberdovey, Merionethshire; Llan- 
dyssil, Cardiganshire; South Stacks, Holyhead Mt., Anglesea; near Rose- 
berry, Cleveland, Yorkshire; Eglestone and Teesdale, Durham; White- 
haven, Cumberland ; Chollerford, Northumberland. Barcaldine and Head 
of Loch Awe, Argyleshire ; The Trossachs, Perthshire ; Lundie Craigs, 
Forfarshire ; Portlethen, Kincardineshire; The Khoil, near Ballater, 
Aberdeenshire. Near Inniscarra, co. Cork; Kilkee, co. Clare; near 
Kylemore, co, Galway. 
34. L, ferruginascens Nyl. Flora, 1872, p. 427.—Thallus effuse, 
thin, areolato-diffract, whitish (K+purplish), often evanescent. 
Apothecia small, biatorine, plane and margined, or at length convex 
and immarginate, rusty-ochraceous or tawny-fcrrugineous (K+ 
purple); spores obloug, polari-bilocular, with longitudinal tube, 
0,011-16 mm.-long, 0,004—-6 mm. thick.—Cromb. Grevillea, xviii. 
p. 45, 
Allied to var. 8 of the preceding species, but differs in the colour of 
the apothecia and in the spores, which, as observed by Nylander J. ., 
often appear simple in the recent plant. In the British specimen seen 
the apothecia become at length rather dark. 
Hab, On schistose rocks in an upland situation.— Dist. As yet only 
very sparingly in N.W. England.—B. M.; Near Kendal, Westmoreland. 
35. L. fuscoatra Nyl. Flora, 1872, p. 427.—Thallus effuse, 
thin, minutely areolato-diffract, sordid-greyish (K + purplish-violet). 
Apothecia small, nearly plane, lecanorine, rusty-red (K + purplish), 
the thalline margin distinct, entire; spores polari-bilocular, 0,011- 
15 mm. long, 0,006-9 mm. thick.—Cromb. Grevillea, xvili. p. 45. 
—Lecanora ferruginea var. fuscoatra Cromb, Lich. Brit. p. 47; 
Leight. Lich. Fl. p. 220, ed. 3, p. 209. Biatora ferruginea 6. fusco- 
atra Bayrh. Uebers. (1849) p. 82. 
Apparently specifically distinct from L. ferruginea, differing at once in 
the definitely,lecanorine apothecia. Our few British specimens are well 
fertile. 
Hab. On schistose rocks in maritime districts — Distr. Only very 
sparingly in N.W. England, the S.W. Highlands, and N.E. coast of 
Scotland.—B. M.: North of Douglas, Isle of Man. Barcaldine, Argyle- 
shire ; Portlethen, Kincardineshire. 
36. L. concilians Nyl. Flora, 1880, p. 388.—Thallus subdeter- 
minate, granuloso-areolate, dark-greyish (K—). Apothecia moderate 
or small, rusty-brown or brownish-black, at first lecanorine, plane, 
with thin thalline margin, at length convex, biatorine, immarginate 
(K+dark purplish) ; spores ellipsoid, polari-bilocular, 0,012-17 mm. 
long, 0,006-9 mm. thick.—Cromb. Grevillea, xviii. p. 45.—Lecanora 
ferruginea forma concilians Nyl. Lich. Scand. (1861) p. 143; Cromb. 
Journ, Bot. 1870, p. 97; Leight. Lich. Fl. p. 220, ed. 4, p. 209 
(obs.).—To this is referable the British specimens of L. diphyodes 
