448 



THE LICHEN-FLORA 



Bot. Peov :— 1... 3.. .11. ..19. 



England : ^Hartlepool, Durham. Mr. Mudd. Mary Church, Torquay. Mr. 

 Pwrfitt. Inworth, Essex. Mr. Varenne. Saltash, Devon. Mr. Holmes. 

 Ireland : — Dunkerron Mountain ! Dr. Taylor. 

 Spores .022— .0235 mm. long, .011— .012 mm. broad. 



Var. acrotella, Ach. pale-brown or greyish-brown or blackish, 

 thin, continuous or evanescent ; apothecia black, minute, promi- 

 nent, hemispherical ; perithecium dimidiate ; spores of the same 

 size as those of cethiobola. 



On stones, not common. 



Syn :— Ach. Meth. 125. (1803.) Nyl. Scand. 293. V. mutabilis, Borr. Leight. 

 Aug. Lich. 55. in part. 



Pig :— E. Bot. 1. 1712. 



Exs :— Am. 53. 102. 



Geog. Distrtb : — Sweden, Germany. 



Bot. Pbov :— 1, 2...10, 11...19...30. 



England : — Sussex ! Mr. Borrer. near Ayton. Mr. Baker. Teesdale and 

 Weardale, Durham. Mr. Winch. Bora Down near Ilsington, Devon. Messrs. 

 Jones & Kingston. 



Ibeland : — Near Bantry. Miss Sutchins. near Belfast. Mr. Templeton. Carig 

 and Dunkerron, Kerry, Dr. Taylor. Ballinhassig, Cork. Mr. Carroll. 



Spores .017— .019 mm. long, .0085— .0095 mm. broad. 



8. V. devergescens, Nyl. " Allied to V. cethiobola. Spores 

 lineari-oblong, .019 — 29 mm. long, .007 — .010 mm. broad." 

 (Nyl.) 



On maritime rocks, 1877. 



Syn :— Nyl. in Elora 1877 p. 462. 



Bot. Prov :— 26. 



Ireland : — Near Letter ! co. Galway. Mr. Zarbakstier. (1877.) 



Spores .016— .018 mm. long, .008— .009 mm. 



9. V. latebrosa, Korb. reddish-smoke-colour, effuse, thinly tar- 

 tareous ; rimuloso-a/reolate ; apothecia nigro-fuscous, large, globose, 

 sessile, more or less covered at the base by the thallus ; epithecium 

 poriform ; spores 2, colourless, at length slightly brown, large, 

 ellipsoid, simple. 



On rocks, rare. 1877. 



Syn:— Korb. Syst. 349. (1855.) Par. 377. 

 Exs :— Arn. 607. 

 Geog. Distrtb : — Germany. 

 Bot. Prov :— 26. 



Ireland : — Kylemore Lake ! Mr. LarbaUstitr. (1877.) 



Spores .0255 mm. long, .011 mm. broad. Korber says " spores 2." I found 

 8 in Mr. Larbalestier's specimen. 



10. V. mutabilis, Borr. warm-umber-coloured, like a dark-brown 

 oily stain, thin, filmy, membranaceous, continuous, smooth, sub- 

 determinate or effuse, often nearly evanescent ; apothecia brownish- 

 black, minute, scattered, numerous, prominent, hemispherical, 

 opake, sometimes polished and shining, internally pale ; epithecium 

 minutely poriform ; perithecium dimidiate ; paraphyses none ; 

 spores 8, colourless, oblong, simple, very minute, half the size of 

 those of V. acrotella. 



On stones, rocks, and pebbles, not common. 1807. 



Syn :— Leight. Ang. Lich. 55. excl. syn. (1851.) Mudd Man. 293. 

 Pig :— Leight. 1. c. t. 24. f. 3. 

 Geog. Distrib :— Europe. 



