6 LECANO-LECIDEEI [GYALECTA 



sli<2;htly bluish then wine-red with iodine. — Mudd Man. p. 16G, 

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

 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. /. c. (1796) (excl. hab. "on trees"); Engl. 

 Bot. t. 739. Lecidea cupularis Ach. Meth. p. 5G (1803) ; Carroll 

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

 Lich. Fl. p. 352; ed.3,p.381. L. wamorea Ach. Syn. p. 46 (1814): 

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

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

 in Mackay Fl. 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 radiate - 

 rugose, especially in muscicolous examples. 



Hah. 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. Eozel, Jersey ; Kymyal Cliff, near 

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

 near Lewes, Sussex ; Breda Hill, Leicestershire ; Whitecliffe Rocks, 

 near Ludlow, and Craig-y-Rhiw, 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 Tulloch, Perthshire; Cuchullin 

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

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

 Gap, Kerry ; Ballynahinch and near Errifi, Connemara, Galway. 



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

 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. — 

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

 laris Nyl. in Mem. Soc. Cherb. v. p. 119 (1857) ; Carroll in Journ. 

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

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



Externally subsimilar 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 a.nd 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. 



