OF GREAT BRITAIN. 239 



2. T. subtile, Tuck, whitish or milky-ivhite, macular, somewhat 

 shining ; apothecia erumpent, small, white, thalline margin slightly 

 prominent, proper margin albo-pulverulent ; spores 8, colourless, ob- 

 long, 10-13-celled. 



On young oaks and birch, very rare. 1864. 



Syn :— Tuck. Suppl. 1. 426. (1858.) Nyl. in Flora 1854. p. 491. 



Geog. Distbib :— Europe, N. America. 



Boi'. Prov :— 19...26...29. 



Ireland : — Lough Inchiquin co. Kerry ; Croghane, Turk Mountain, and 

 Cromaglown, Killarney; near Derrycundry and at the Eagles Nest. Mr. 

 OarroU. (1864.) Glengariff. Adm. Jones. Glenveigh co. Donegal, Dr. Moore. 

 Derryclare Island ! co. Galway. Mr. Larbalestier. 



"Spores .040—56 long, .009—010 mm. broad." (Nyl.) 



XI. URCEOLARIA, Ach. pr. p. Nyl. 



Thallus crustaceous. Apothecia urceolate. Spores 8, fuscous, 

 septato-murali-divided. Spermatia cylindrical. 



1. U. scruposa, (L.) albido-cinerascent, tartareous, verrucoso- 

 rugose or granulose, areolato-diffract, areolse verrucoso-rugose ; 

 apothecia immersed, urceolate, black, more or less cinereo-pruinose, 

 proper margin nigricant, thallitie margin thick, rugose or crenulate 

 on the inner side ; spores 8, virescenti-fuscescent, ellipsoid, 5-sep- 

 tate, murali-divided ; (thallus C red.) 



On rocks, walls, &c, frequent. 1741. 



Syn:— Linn. Mant. 2. 131. (1771.) Ach. Syn. 142. Nyl. Scand. 176. Mndd 

 Man. 165. 



Fio :— E. Bot. 266. Leight. Ang. Lich. 1. 11. f. 3. 



Exs :— M. & N. 169. Schasr. 132. 289. Anzi It. S. 227. 229. Leight. 54. 379. 

 Hepp 915. Fellm. 141. Nyl. 46. Muddl37. Mass. 359. 



Geog. Distreb : — Switzerland, Germany, Italy, Pyrenees, France, E. Lap- 

 land, New Zealand, Ceylon. 



Bot. Prov :— 2, 3, 4. 5.. .7, 8.. .10, 11, 12...19...22, 23, 24.. .26.. .31. 



England :— Norfolk, Suffolk, and Cambridgeshire. Sir J. E. Smith. Darking- 

 ham, Surrey. DUlenius (1741.) Gogmagog Hills ; Newmarket Heath. Rev. B. 

 Belhan. Lonsdale ! Lanbraughrigg ! Cleveland. Mr. Mudd. near Eglestone ; 

 Harewood Forest, between Widely Bank and Cauldron Snout, Durham. Mr. 

 Winch. Duryard, Exeter. Mr. Parfitt. Charnwood Forest, Leicestershire. Rev. 

 A. Bloxam. Kelvedon, Essex. Mr. Varenne. Midland Counties. Mr. Purton. 

 Bedfordshire. Rev. G. Abbot, near Wooton-under-Edge. Mr. W. Joshua. Guest- 

 ling, Sussex. Rev. K N. Bloomfield. Foreshield, Alston, Cumberland. Rev. W. 

 Johnson. Hayes Common, Penshurst, Ightham, Tunbridge Wells. Mr. Holmes. 

 High Bock ! near Bridgnorth ; Haughmond Hill ! Bayston Hill ! Lyth Hill ! 

 near Shrewsbury ! Cold Hatton Heath ! Loppington ! Grinshill ! Shropshire. 

 Stannor Hill ! Herefordshire. 



Ireland :— Dunkerron, Kerry ; Portmarnock, Dublin. Dr. Taylor. Glenda- 

 lough, Wicklow. Adm. Jones. Loughcooter, Galway. Mr. Carroll. Killarney. 

 Mr. Hardy. 



Wales : — Dolgelley, Cader Idris. Mr. Holmes. Barmouth ! Aran Mowddy ! 



Channel Islands : — Jersey ; Guernsey ; Sark. Mr. Larbalestier. 



" Spores .005 to .007 in. long, by .002 to .00275 in. broad, t. 3. f. 57." (Mudd.) 

 " Spores .026— 38 mm. long, .012—15 mm. broad." (Nyl. 6cT. M. Fr.) Spores 

 .025 mm. long, .012 mm. broad. 



forma gypsacea, (Ach.) creamy-white, thick, soft, rugoso-unequah 

 sub-pulverulent, sub-areolate ; apothecia urceolate, black, csesio" 

 pruinose ; thalline margin tumid, inflexed ; (thallus Cred.) 



On calcareous rocks, rare. 



StN -.-Ach. L. U. 338. (1810.) Syn. 142. 



