B8 LECANO-LECIDRKT [lECIDBA 



slightly convex, contiguous. Apothecia apprcssed, becoming 

 superficial, plane or slightly convex, — L. conti(/ua var. calcarea 

 Fr. Lich. Eur. p. ;W2 (1831) (excl. syn) ; Leight. op. cit. ed. 3, 

 p. 300. 



A M'ell-marked form with white rather shining smooth thallus. 



Hah. On rocks. — Distr. Not unfrequent in England, Wales and 

 AV. Ireland ; not recorded from Scotland. — B. M. St. Minver and 

 St. Wenn, Cornwall ; Okehampton, Devon ; Beddgelert, Carnarvon ; 

 Kylemore, Connemara, Galway. 



Var. percontigua A. L. Sm. — Distinguished by the rather 

 larger, umbonate apothecia, and the different chemical reaction 

 (K 4- yellowish and then brownish-red). — L. percontigua Nyl. in 

 Flora Ixv. p. 457 (1882). 



Hah. On rocks, rare. — B. M. Barrowmouth, Whitehaven, Cum- 

 berland (the only locality). 



Yar. platycarpa Fr. Lich. Eur. p. 300 (1831).— Thallus diffuse, 

 whitish or greyish, thin or at length disappearing. Apothecia 

 moderate in size or large, at first plane with a tumid prominent 

 margin, becoming immarginate, sometimes appressed-adnate. — 

 Mudd Man. p. 210; Cromb. Lich. Brit. p. 80; Leight. Lich. 

 Fl. p. 292; ed. 3, p. 299. L. platycarpa Ach. Lich. Univ. 

 p. 173 (1810); var. steriza Floerke ex Koerb. Syst. Lich. 

 Germ. 249 (1856) ; f. steriza Mudd I. c. ; var. hydropMla Fr. /. c. 

 p. 301 ; f. hydrophila Leight. Lich. Fl. p. 293 (1871) ; ed. 3, p. 300. 

 Patellaria macrocarpa Dc. Fl. Fr. ii. p. 347 (1805). 



Exsicc. Mudd n. 109. 



Distinguished from the type by the very scanty thallus. 



Hah. On rocks. Not unfrequent in the hilly regions of N. Eng- 

 land, Wales, Scotland and Ireland. — B. M. Nant Ffrancon and 

 Beddgelert, Carnarvon ; Ayton Moor, Cleveland, Yorkshire ; Ben 

 Lawers, Perthshire ; Morrone, Braemar, Aberdeenshire ; Doughruagh 

 Mt., Connemara, Galway. 



Var. flavicunda Nyl. Lich. Scand. p. 224 (1861).— Thallus 

 rusty-red, rather thick, tartareous, areolate, the areolae flat and. 

 smooth. Apothecia moderate in size or large, flat or somewhat 

 convex, more or less whitish-pruinose. — Cromb. Lich. Brit. p. 80 ; 

 i. Jiavicunda Jjeight. Lich. Fl. p. 294; ed. 3, p. 301. L. flavi- 

 cunda Ach. Lich. Univ. p. 166 (1810). 



Hah. On rocks. — Distr. Not unfrequent in maritime and hilly 

 districts of S.W. and N. England, Wales and Scotland. — B. M. Carn 

 Galven, near Penzance, Cornwall ; Clee Hill, Shropshire ; Cader Idris, 

 Merioneth ; Snowdon, Caernarvon ; Ayton Moor, Cleveland, York- 

 shire ; Teesdale, Durham ; Ben Beck, Sidlaw Hills, and Baldoran, 

 Forfarshire ; Ben Lawers, Perthshire ; Craig Coinnoch and Morrone, 

 Braemar, Aberdeenshire ; Dunkerron, Kerr^^ ; Connemara, Galway ; 

 Errif River, Mayo. 



114. L. sorediza Nyl. in Bull. Soc. Linn. Norm. ser. 2, 

 vi. p. 292 (1872). — Thallus determinate, smooth, areolate- 



