54 LEOANO-LBCIDBEI [lBCIDBA 



Form latypiza A. L. Sm. — Thallus subcinereous, eflfuse (K + 

 yellow, CaCl — ). — L. parasema subsp. latypiza Nyl. in Bull. Soc. 

 Linn. Norm. ser. 2, vi. p. 310 (1872) ; var. latypea i. latypiza 

 Leight. Lich. Fl. ed. 3, p. 270 (1879). 



Differs from the type in the colour reaction and in the somewhat 

 greyer more effuse thallus. 



nah. On rocks. — B. M. Twelve Pins, Connemara, Galway (the only 

 locahty). 



82. L. sublatypea Leight. Lich. FI. p. 271 (1871).— Thallus 

 effuse or subdeterminate, subareolate or unequally granular and 

 scattered, greyish-white (K— , CaCl — ); hypothallus black, 

 visible at intervals and giving the whole lichen a dark 

 appearance. Apothecia small, sessile, concave, blackish, with 

 a thickish somewhat shining, entire margin ; hypothecium 

 blackish-brown ; paraphyses not well discrete, dark bluish-green 

 or brownish-black at the tips ; spores ellipsoid or oblong-ellipsoid, 

 0,010-12 mm. long, 0,004—6 mm. thick; hymenial gelatine deep 

 blue with iodine. — Cromb. in Journ. Bot. ix. p. 178 (1871); 

 Leight. Lich. Fl. ed. 3, p. 271. L. latypodes Nyl. in Flora Iv. 

 p. 356 (1872) ; Cromb. in Journ. Bot. xi. p. 134 (1873). 



Exsicc. Cromb. n. 88. 



Externally somewhat resembles L. latypea, though with a thinner 

 and darker thallus ; also distinguished by the smaller spores and by 

 the negative chemical reactions of the thallus. 



Sab. On schistose rocks. — Distr. Somewhat rare in mountainous 

 regions of Wales and Scotland. — B. M. Llyn Aran, Cader Idris, 

 Merioneth ; Glen Fender and Craig Tulloch, Blair Athole and Ben 

 Lawers, Perthshire ; Aohosragan Hill, Argyll ; Glen Callater, 

 Braemar, Aberdeenshire. 



83. L. goniophila Schser. Enum. p. 127 (1850).— Thallus 

 effuse, thin, granulose-rimulose, greyish or brownish (K -f yellow, 

 CaCl — ). Apothecia black, small, numerous, crowded or 

 scattered, sessile, plane, with a thin margin, becoming convex 

 and immarginate ; hypothecium colourless or yellowish ; para- 

 physes loosely coherent, greenish-black or brown at the tips, the 

 green colour sometimes permeating downwards ; spores ellipsoid, 

 0,012-16 mm. long, 0,006-8 mm. thick; hymenial gelatine blue 

 then sordid-wine-red with iodine; spermatia straight, 0,011-15 mm. 

 long, 0,0005-6 mm. thick {fide Nyl. Lich. Env. Paris, p. 91 

 (1896)).— Mudd Man. p. 202; Cromb. Lich. Brit. p. 78 (under 

 L. parasema). L. immersa var. goniophila Floerke in Berl. 

 Mag. iii. p. 311 (1809). L. pungens Leight. Lich. Fl. ed. 3, 

 p. 251 (1879) (cf. Nyl. in Flora Ixiv. p. 188 (1881) ). L. parasema 

 var. enteroleuca Nyl. Lich. Scand. p. 217 (1861) pro parte. 

 L. enteroleuca Leight. Lich. Fl. p. 265 (1871); ed. 3, p. 263 

 (non Ach.). Biatora pungens Koerb. Par. Lich. p. 161 (1865). 



Exsicc. Mudd. n. 172 ; Leight. n. 330. 



