OF GREAT BRITAIN. 237 



Geog. Distrib : — Europe. 



Bot. Pkov : — 19. 



Ireland : — Miss Hutchins & Sir Thos. Gage. 



IX. PHLYCTIS, Wallr. 



Thallus slightly crustaceous, continuous or pulverulent. Apo- 

 thecia erumpent, rotundato-difformed, thalline margin indistinct. 

 Spores 1-2, colourless, ellipsoid or oblong, murali-divided, large. 

 Spermatia short, slender, straight. 



1. P. agelcea, (Ach.) whitish or albo-oanescent, thin, subdeter- 

 minate or effuse, rugose or sub-leprose or sub-laevigate, rimoso- 

 diffract ; apothecia irregular, depressed, scattered or crowded, 

 nigricant, albido-or csesio-suffused, thalline margin leprose, inflexed, 

 irregularly crenate ; spores 2, luteo-fuscescent, ellipsoid, murali- 

 divided, apically mucronate ; (thallus K yellow, then orange.) 



On trees, frequent. 1807. 



Syn :— Ach. Prod. 30. (1798.) Syn. 117. Nyl. Scand. 184. Mudd Man. 279. 

 Vovriolaria, Turn. & Borr ! Lien. Brit. 78. 



Eig :— E. Bot. 1730. Hepp Sporen. t. 80. f. 703. 



Exs :— Nyl. 54. Hepp 703. Mudd 269, Anzilt. S. 345. Rabh. 807. Mass. 206. 

 Zw. 298. Leight. 282. 



Gbog. Distrib : — Italy, Germany, Bavaria, France, Switzerland. 



Bot. Prov :— 2, 3, 4, 5...7...10...19...24...26...31. 



England : — Yarmouth ! Mr. Turner. (1807.) Sussex ! Mr. Borrer. Hoggarts 

 Woods ! Ingleby ; Airyholme Wood ! Kildale ; Yorkshire. Mr. Mudd. Hat- 

 field Broad Oak ; Braxted, Essex. Mr. Varenne. Pophills, Warwickshire. Rev. 

 W. S. Rufford. Epping Eorest ; New Eorest. Rev. J. M. Cronribie. Penshurst, 

 Edenbridge, Hythe, Lympne, Sandgate, Newington, Beechborough, Bidden- 

 den, Erittenden, Charing, Lenham, Sibertswold, Kent. Mr. Holmes. Haugh- 

 moud Hill ! Shropshire. Huglith ! near Church Stretton. 



Ireland : — Castlebernard Park, Bandon. Adm. Jones. Castle Taylor, Galway. 

 Dr. Moore. Kitsboro' ; and Riverstone, Cork. Mr. Gwrroll. 



Wales : — EddertonWood ! Eorden, Montgomeryshire. 



Channel Islands :— Jersey, Guernsey. Mr. La/rbalestier. 



" Spores .012 to .017 in. long, by .004 to .007 in. broad." [Mudd.) " Spores 

 .045—70 mm. long, .014— 27mm. broad." (Nyl.) " Spores .045— 72mm. long, 

 .014—32 mm. broad." (T. M. Fr.) 



2. P. argena, (Ach.) silvery-grey or cream-colour, thin, effuse, 

 rugose or sublsevigate, pulverulent ; apothecia orbicular, scattered 

 or crowded, depressed, pulverulent, brown, csesio-pruinose, thal- 

 line margin rugose, inflexed ; spores 1, luteo-fuscescent, narrow- 

 oblong or cylindraceo-oblong, 5-septate, murali-divided, very large ; 

 (thallus K yellow, then red.) 



On trees, frequent. 1808. 



Syn i— Ach. Prodr. 8. (1798.) Meth. 74. Syn. 47. Nyl. Scand. 184. Mudd 

 Man. 280. Variolaria, Turn, and Borr. ! L. Br. 75. 



Pig :— Hepp Sporen t. 80 f . 705. 



Exs :— Hepp 705. Zw. 299. Rabh. 806. 



Geog. Distrib : — Switzerland, Germany. 



Bot. Prov :— 2, 3... 7, 8... 10. 



England :— Sussex I Mr. Borrer. Kildale, Cleveland. Mr. Mudd. Charnwood 

 Eorest ! Leicestershire. Rev. A. Bloxam. New Eorest and near Exeter. Rev. J. 

 M. Grombie. Selling, Hythe, Tunbridge, Biddenden and Beechborough, Kent ; 

 Shere, Surrey. Mr. Holmes. 



Wales :— Dolgelley. Mr. Holmes. Bettws-y-coed 1 



" Spores .025 to .032 in. long, by .007 to .009 in. broad." (Mudd.) " Spores 

 .100— .140 mm. long, .027—50 mm. broad." (Nyl. & T. M. Fr.) 



