34 LECANO-LECIDEEI [lECIDEA 



Rodiiiarton, (llouceKtersliire ; Yarmouth, Norfolk; Gopaall, Leicester- 

 shire ; Broadwas, Worcestershire ; Airyholme "Wood and Cliffrig, Cleve- 

 land and Ingleby, Yorkshire ; Finlarig, Killin, Perthshire. 



39. L. meiocarpa Nyl. in Flora lix. p. 577 (1876).— Thallus 

 effuse, very thin, granulose-leprose, greyish or greenish-white, 

 often subevanescent (K — , CaCl — ). Apothecia minute, convex, 

 immarginate, pale-yellow, yellow-testaceous or reddish ; para- 

 physes colourless at the apices ; hypothecium brown ; spores 

 oblong, 0,007-11 mm. long, 0,003-4 mm. thick; hymenial 

 gelatine wine-red with iodine. — Cromb. in Grevillea xxii. p. 10. 

 L. anomala var. y minuta Schser. Spicil. p. 170 (1833) pro parte. 

 L. minuta Cromb. Lich. Brit. p. 68 ; Leight. Lich. Fl. p. 266 ; 

 ed. 3, p. 264 pro parte. L. effusa Mudd Man. p. 195 (1861), 

 (non Sm. EngL Bot.). 



A rather inconspicuous plant, resembling a diminutive state of 

 subsp. minor of the preceding, but differing in the smaller apothecia 

 and spores. The apothecia are numerous, at times somewhat crowded, 

 becoming reddish-black in age ; when they are dark-violet and some- 

 what whitish-pruinose, it becomes var. sarcopisioides Massal. Ric. Lich. 

 p. 128 (1852) ; Cromb. I. c, p. 69 ; Leight. II. c. 



Hah. On the trunks of trees, chiefly firs, in maritime and upland 

 wooded tracts. — Distr. Local and scarce in S. and N. England. — B. M. 

 Shanklin, Isle of Wight ; New Forest, Hants ; Penzance, Cornwall ; 

 Cliffrigg, Cleveland, Yorkshire. 



40. L. tenebricosa Nyl. in Not. Siillsk. Faun. & FL Fenn. n. 

 ser. V. p. 145 (1866). — Thallus effuse, very thin, unequal, greyish- 

 white (K — , CaCl~), usually scarcely visible. Apothecia minute, 

 plane or convex, brown or reddish-brown, the margin thin, darker, 

 at length obliterated ; paraphyses moderate, subclavate and brown 

 at the apices ; hypothecium pale ; spores oblong, 0,008-15 mm. 

 long, 0,0040-45 mm. thick ; hymenial gelatine deep-blue then 

 sordid with iodine. — Leight. Lich. Fl. ed. 3, p. 264 ; Cromb. in 

 Grevillea xxii. p. 10. L. anomala var. c tenebricosa Ach. Lich. 

 Univ. p. 382 (1810) pro parte {fide Nyl. Lich. Scand. p. 201). 

 L. anomala var. minuta Schser. Spicil. p. 170 (1836) pro parte. 

 L. minuta Massal. Ric. Lich. p. 76 (1852) ; Mudd Man. p. 195; 

 Leight. Lich. Fl. p. 266 pro parte ; ed. 3, p. 264 pro parte. 



Exsicc. Leight. nos. 298, 326; Mudd n. 163. 



A rather inconspicuous plant, which from its evanescent thallus 

 and minute fructification is apt to be overlooked. It is, however, a 

 good species well characterized by the analytical characters of the 

 apothecia, though easily confused with the preceding species. The 

 apothecia are usually somewhat scattered, and in more exposed 

 situations become blackish. 



Hah. On the trunks of trees, chiefly ash and poplars, in maritime 

 and upland wooded districts. — Distr. Seen from only a very few 

 localities in England, the S.W. Highlands of Scotland, and W. Ireland. 

 —B. M, Lymington, Hants ; UUacombe, Bovey Tracey, S. Devon ; 



