348 CYCLOCARPINEX [LECANIA 
more nearly related to L. aipospila. L. Rabenhorstii (Hepp) B. de 
Lesd. has not been found in Britain. 
Hab. On rocks, very rarely on decorticated trees, in maritime and 
inland districts.—Distr. Widely distributed throughout the British 
Isles.—B. M. St. Aubin’s Fort, St. John’s, Rozel, Fliquet Bay, Noir- 
mont and St. Brelade’s (lignicolows), Jersey; Sark; Guernsey; near 
Penzance, Cornwall; near Torquay, Devon; Luccombe, I. of Wight ; 
Rottingdean Cliffs, Sussex; Ulting, Essex; Bathampton Downs, 
Somerset; near Painswick and near Cirencester, Gloucestershire ; 
Goodwick Bay, Pembrokeshire; Abdon, Shropshire ; Norton, Worces- 
tershire; Redear, near Ayton and Coatham, Cleveland, Yorkshire ; 
St. Bees, Cumberland; Lismore and Barcaldine, Argyll; Portlethen, 
Kincardineshire ; Craig Guie, Braemar, Aberdeenshire; Lower Glan- 
mire Road, Cork; near Kilkee, Clare; Down. 
Var. cinereofusca Mudd 1. c. t. 2, fig. 48.—Thallus effuse, 
very thin, leprose, greyish-green when moist, greyish-brown when 
dry. Apothecia minute, scattered, numerous, the dise plane, 
dark-brown, slightly pruinose, at length convex; spores more 
ellipsoid, indistinctly septate.—Lecanora erysibe f. cinereofusca 
Cromb. in Grevillea xviii. p. 69 (1890) & Monogr. i. p. 444. 
Exsicc. Mudd n. 106. 
Considered by Crombie to be only a form of the species, but the 
very minute apothecia and indistinctly septate spores justify its 
varietal position. 
Hab. On rocks and walls in maritime and inland districts.— Distr. 
Sparingly in S.W. and N. England.—B. M. Hastings, Sussex; Crowle 
near Worcester; near Ayton, Cleveland, Yorkshire. 
Var. sincerior B. de Lesd. Lich. Dunk. p. 176 (1910).— 
Thallus whitish, granulate-areolate or of scattered granules. 
Apothecia with a persistent thalline margin, the dise reddish- 
brown.—Lecanora erysibe var. sincerior Nyl. in Flora lix. p. 577 
(1876) ; Cromb. in Grevillea v. p. 108 (1876) & Monogr. i. p. 444 ; 
f. sincerior Leight. Lich. Fl. ed. 3, p. 219. 
Exsice. Johns. n. 138; Larb. Lich. Hb. without a number. 
Differs from the species in the whiter colour of the thallus and the 
persistently marginate apothecia. B.de Lesdain gives spore sizes as. 
15-18 » long, 5-6 » thick. They are constantly 15 p long, 5 p thick 
in the British specimens, and they are very distinctly septate. 
Hab. On rocks and walls in maritime localities.—Distr. Rare in 
the Channel Islands, S. and N. England, and N.W. Ireland.—B. M. 
Vale Castle, Guernsey; Hastings, Sussex; near Torpoint, Devon ;. 
North Tyne, Northumberland; St. Bees, Cumberland; Lettermore, 
Connemara, Galway. 
15. L. Hutchinsia A. L. Sm.—Thallus effuse, thin, areolate, 
somewhat furfuraceous, or almost disappearing, pale dull-brownish 
(K —, CaCl —), Apothecia rather small, reddish- or yellowish- 
brown, convex, the slight thalline margin disappearing at an 
early stage; paraphyses subdiscrete, rather slender, septate, 
slightly clavate upwards, colourless at the tips; spores oblong- 
