6 LBCANO-IiECIDEEI [gYALECTA 



slightly bluish then wine-red with iodine. — Mudd Man. p. 166, 

 t. 3, f. 59 ; Leight. Angio. Lich. p. 33, t. 13. f. 1. LicJien 

 cupularis Ehrh. Beitr. iv. p. 45 (1789); Dicks. Crypt, fasc. ii. 

 p. 18 ; "With. Arr. ed. 3, iv. p. 22 (excl. hab. " on trees "). Lichen 

 marmoreus With. I. c. (1796) (excl. hab. "on trees"); Engl. 

 Bot. t. 739. Leeidea cupularis Ach. Meth. p. 56 (1803) ; Carroll 

 in Nat. ^ist. Rev. vi. p. 525 ; Cromb. Lich. Brit. p. 62 ; Leight. 

 Lich. PI. p. 352 ; ed. 3, p. 381. L. marmorea Ach. Syn. p. 46 (1814); 

 Hook, in Sm. Engl. Fl. v. p. 184 (1833) ; Hook. El. Scot. ii. p. 40 

 (excl. hab. " on trees ") ; S. F. Gray Nat. Arr. i. p. 473 ; Tayl. 

 in Mackay El. Hib. ii. p. 129 (excl. hab. " on trees"). 



Exsicc. Leight. n. 122; Mudd n. 139; Cromb. n. 76; Larb. 

 Lich. Hb. n. 186 ; Johns, n. 329. 



A species not rightly discriminated by the earlier British authors 

 from one or more of its corticolous allies. The thallus, which often 

 spreads extensively, is occasionally almost evanescent. The numerous 

 but not crowded apothecia are at first closed and subglobose, becoming 

 at length explanate and concave ; their margin is frequently radiato- 

 rugose, especially in muscicolous examples. 



Hab. On rocks, chiefly calcareous, and on mortar of walls, rarely 

 overspreading mosses, in maritime, upland, and subalpine localities. — - 

 Distr. General and usually plentiful, where it occurs, in most parts of 

 Great Britain ; apparently rarer in N. and S. Ireland, as also 

 in the Channel Islands.— B. M. Eoze^l, Jersey ; Kymyal Clifif, near 

 Penzance, Cornwall; Bathampton Downs, Somerset; Hailing HUl, 

 near Lewes, Sussex ; Breda Hill, Leicestershire ; "Whiteoliffe Rocks, 

 near Ludlow, and Craig-y-Ehiw, Oswestry, Shropshire; Bilsdale 

 and Guisboro' Moor, Cleveland, Yorkshire ; Teesdale, Durham ; Lamp- 

 lugh, Cumberland; Island of Lismore and Appin House, Argyll; 

 Craig Calliach, Ben Lawers, and Craig TuUoch, Perthshire ; Cuohulhn 

 Hills, Isle of Skye ; Craig Guie and Morrone, Braemar, Aberdeenshire ; 

 Grogans Glen and Colin Glen, near Belfast, Antrim; Ballaghbeama 

 Gap, Kerry ; Ballynahinoh and near Erriff, Connemara, Galway. 



3. G. foveolaris Schser. Enum. p. 94 (1850).— Thallus eflfuse, 

 granulose or subleprose, whitish or greyish- white (K — , CaCl — ), 

 Apothecia moderate or somewhat large, urceolate, flesh- or pale- 

 rose-coloured, the margin thin, entire or subcrenulate, paler ; 

 hypothecium colourless ; paraphyses not well discrete ; spores 

 8nate, oblongo-ellipsoid, 3-septate, 0,018-21 mm. long, 0,006- 



7 mm. thick ; hymenial gelatine bluish then sordid with iodine. — 

 Ureeolaria foveolaris Ach. Meth. p. 149 (1803). Lecidia foveo- 

 laris Nyl. in Mem. Soo. Cherb. v. p. 119 (1857) ; Carroll in Joum. 

 Bot. iv. p. 23 (1866) ; Cromb. Lich. Brit. p. 62 ; Leight. Lich. 

 Fl. p. 334 ; ed. 3, p. 359. 



Externally subsimUar to muscicolous states of the preceding, but 

 quite distinct in the septation of the spores. As already noticed 

 (Part I. p. 458) it also very much resembles, in the form of the 

 apothecia and the spores, Lecanora rubra, from which, however, it at 

 once differs in the absence of a distinct thalline margin. The apothecia 

 are numerous but discrete. 



