OF GREAT BRITAIN. 231 



Fig :— E. Bot. 2461. Leight. Ang. Lioh. t. 10. f. 3. 



Exs :— Hepp 935. Anzi It. S. 351. 350. 352. Langob. 223. Zw. 359. Am. 149. 

 Welw. Lusit. 99. Korb. 268. 



Geog. Distbib :— Germany, Italy, Portugal. 



Bot. Pbov :— 2, 3...7, 8.. .24. ..26. 



England: — St. Leonards Forest! Henfield! Sussex. Mr. Borrer. (1812.) 

 Twyoross ! Leicestershire. Rev. A. Bloxam. Mile-end near Colchester, Essex. Mr. 

 Varenne. 



Ireland:— Curraghmore. Adm. Jones. 



Wales : — Dolgelley ! 



"Spores .015 to .019 in. long, by ,007 to 008 in. broad." (Mudd.) Spores .07 

 — .075 mm. long, .035 mm. broad. 



13. P. fallax, (Pers.) albido-jlavescent or einereo-flavescent, sub- 

 effuse, cartilagineo-membranaceous, smooth, plicato-rugose; verrucce 

 aggregato-deformed ; ostiola brownish-black or nigricant, dilated, de- 

 formed, sub-lecanoroid, thalline margin thick, undulato-sub-crenate ; 

 spores 8, colourless, ellipsoid, simple. 



On trees and rooks, not common. 1801. 



Syn : — Persoon fide Ach. Syn. 110. (1817.) Thelotrema hymeneum, Turn, and 

 Borr. L. Br. 185. Isidium Mtescens, Turn, and Borr. 1. c. 87. Mudd Man. 276. 

 P. Wulfenii, B.C. 



Fig :— E. Bot. 1731 & 1529. Leight. Ang. Lioh. 1. 10. f. 2. 



Exs :— Hepp 679. Anzi Etr. 40. Nyl. 49. Mudd 266. Zw. 292. Leight. 71. 

 Variolose and Isidioid forms :— Anzi Etr. 41. 43. Sohser. 238. Hepp 680. Zw. 297. 

 Stenh. 143. 144. 



Geog. Distrib :— Germany, Switzerland, Italy, Pyrenees, France, Madeira. 



Bot. Prov :— 1, 2, 3, 4, 5.. .7.. .10, 11, 12.. .19.. .30. 



England : — Ingleby Park ! Airyholme Wood ! Cleveland. Mr. Mudd. 

 Oswestry ! Rev. T. Salwey. St. Leonards Forest ! Danny ! Sussex. Mr. Borrer. 

 New Forest. Mr. Lyell. Hevingham Parsonage, Norfolk. Rev. J. Alderson. 

 Epping Forest. Mr. Forster. Ockham, Surrey ; Hurstpierpoint and Henfield ! 

 Sussex ; Ickworth Park and near Bramfield, Suffolk. Mr. Borrer. Acle Wood, 

 Norfolk. Mr. Turner. Westmoreland ! Mr. Winch, near Eglestone ; near 

 Gibside ; Horsleyhope Bourne, Durham ; East Common Wood and Felton 

 Wood on the Coquet, Northumberland. Mr. Winch. Frankling, Exeter. Mr. 

 Parfitt. Budleigh Salterton, Devon. Dr. Dickie. Braxted ; Messing ; Yeldham, 

 Essex. Mr. Varenne. Pophills and Oversley Hill, Warwickshire. Mr. Purttm. 

 between Polegate and Priesthawe. near Eastbourne, Sussex. Mr. Roper. Eden- 

 bridge, Hothfield, Chiselhurst, Seven Oaks, Kent. Mr. Holmes. Caer Caradoc ! 

 Haughmond Hill ! Sharpstones Hill ! Llanyblodwel rocks ! Shropshire. 



Ireland : — Blarney! co. Cork. Mr. Carroll. Glenarm. Dr. Moore, near Bel- 

 fast. Mr. Templeton. Askew Wood, co. Kerry; Dunkerron Mountain. Dr. 

 Taylor. 



Wales :— Barmouth ! Rev. T. Salwey. Bettws-y-coed ! Llanbedrog ! Trefriw ! 



" Spores .017 to .021 in. long, by .007 to .011 in. broad." [Mudd.) " Spores 

 .058—85 mm. long, .028—38 mm. broad." (Ifyl.) Spores .07—08 mm. long, 

 .035 — .04 mm. broad. 



forma sulphurea, (Schaer.) sulphury-yellow, tartareous, effuse ; 

 verrucce difformed, crowded into an areolato-verrucose crust ; apothecia 

 many ; ostiola punctiform, nigricant, depressed ; spores 8, colour- 

 less, ellipsoid, simple. 



On rocks, frequent, but generally sterile. 



Syn :— Var. rupicola, Schser. Fn. 229. (1850.) Mudd Man. 276. 



Fig :— Mass. Eic. f. 383. 



Exs :— Schser. 594. 595. Anzi Ven. 165. Etr. 42. 



Geog. Distrib :— Europe. 



Bot. Psov :— 5. ..7. ..26. 



England : — Bodbury Ring ! Shropshire. 



Ireland : — Sir. T. Gage in hb. Borr ! Kiver Dawros ! Galway. Mr. Larba- 



Wales : — Crib Coch ! Cwm Clwyd ! Llanbedrog ! near Pwllheli. 

 ' Spores ,021 to .025 in. long, by .008 to .011 in. broad." (Mudd.) 



