OF GREAT BRITAIN. 



471 



69. V. Larbalestierii, Leight. albido-glaucescent, thin, tar- 

 tareous, effuse, minutely rimuloso-diffract, areolae plane, smooth, 

 somewhat shining, bearing 1 or 2 apothecia in the centre of each 

 areola, (K yellow C — ) ; apothecia black, moderately large, semi- 

 immersed, internally nigro-fuscous ; ostiolum hemispherical, pro- 

 minent, shining ; epithecium a minute depressed pore ; per ithecium 

 black, entire ; paraphyses none ; spores 8, fusco-nigricant, oblong, 

 1-septate, minute. 



On granitic rocks, rare. 1877. 



Stn :— Leight. in Linn. Trans. 2d. ser. 1. 242. 



Fig :— Linn. Trans. 1. c. t. 33. f. 15, 16, & 17. 



Bot. Prov :— 26. 



Ireland : — Near Kylemore ! Galway. Mr. Larbalestier. (1877. 



Gelatina hymenea I—. Spores .016 mm. long, ,008 — .0085 mm. broad. 



G. Spores 3-septate. 



* Perithecium dimidiate. 



70. V. rhyponta, Ach. fusco-nigrescent or fuliginous, very thim 

 opake, macular, sub-effuse ; apothecia minute, sessile, hemispheri- 

 cal ; perithecium dimidiate, black ; epithecium a minute pore ; 

 paraphyses none ; spores 8, colourless, lineari-oblong, 3-septate, 

 minute ; gelatina hymenea red or yellow-brown with iodine. 



On smooth barks of poplar, alder, &c, rare. 



Stn :— Ach. L. U. 282. (1810.) Syn. 89. Nyl. Seand. 281. V. fumago, Wallr. 

 Cr. Germ. 1. 298. 



Kxs :— Zw. 368, 34. Am. 241. Anzi Venet. 121. 122. M. &N. 557. Schser. 591. 

 645. Leight. 254. Mudd 291. 



Geog. Distrib : — Germany, France, Switzerland, Italy, Sweden. 



England :— Near Ayton ! Cleveland. Mr. Mudd. 



Scotland : — Killin, side of the Garry. Rev. J. M. Grombie. 



Ireland: — Dunkerron. Dr. Taylor. Deer Park. Glenarm. Adm. Jones. 



" Spores .018—22 mm. long, .006—8 mm. broad." (Nyl.) Spores .015-.020 

 mm. long, .005 mm. broad. 



71. V. Gerasi, Ach. pale-yellow, fuscescent or fuscous, thin, 

 membranous, more or less shining, maculari-determinate ; apothecia 

 very numerous and crowded, minute, oblong or rounded, convex, 

 shining ; perithecium dimidiate, fuscous-black ; paraphyses none ; 

 spores 8, colourless, lineari-oblong, 3-septate. 



On young oaks, not common. 1871. 



Syn :— Ach. L. U. 276. (1810.) Syn. 89. Nyl. Scand. 281. Leight. Ang. Lich. 

 41. 



Exs :— Zw. 106. Schaer. 644. Nyl. Pyr. Or. 50. Mass. 106. 



Geog. Distrib : — Germany, Italy, Pyrenees, Hungary, Liguria, Switzerland, 

 Scandinavia. 



Bot. Prov :— 5. 



England : — Cowcombe ! Gloucestershire. Mr. Joshua. 



Well marked by the peculiar horizontal disposition of the apothecia and 

 their singular elongato-horizontal form. Spores .019 mm. long, .006 mm. broad. 

 " Spores .023—24 mm. long, .009 mm. broad." (Nyl.) 



72. V. submicans, Nyl. pale-rufous-brown, thin, effuse ; apothecia 

 black, hemispherical, convex, shining, numerous, small, scattered ; 

 perithecium dimidiate ; epithecium minutely poriform ; paraphyses 

 none ; spores 8, colourless, lineari-oblong, 3-septate. 



On trees, oak, birch, holly, cherry, common. (1871.) 



