OF GREAT BRITAIN. 123 



zance ! Woodhill and Porkington near Oswestry ! Rev. T. Salwey. Stanstead 

 Park, Essex. Mr. R. Jacob, near Worcester ; near Brighton ; Isle of Wight. 

 Dr. Hall. Tetsworth ! Oxfordshire. Mr. Larbalesiier. Hastings. Mr. W. Joshua. 

 North Bovey, Ilsington, and Tor Abbey, Devon, Messrs. Jones and Kingston. 

 Penzance ! Mr. Curnow. Treveneth ! Bomere Pool ! Meole Brook ! Stiper- 

 stones ! Haughmond Hill ! Nesscliff Hill ! near Shrewsbury ! 



Ireland : — Ballymartle, co. Cork ! and Glanmire, Cork, Mr. Carroll, near 

 Wicklow. Dr. Mamgay. Dunkerron ; Roughty, co. Kerry. Dr. Taylor. Kyle- 

 more. Mr. Larbalestier. 



Wales :— Pembrokeshire ! Lane between Glanmawddach and Bodowen near 

 Barmouth. Rev. T. Salwey. Glyn ! Capel Curig ! 



Channel Islands : — Rozel, Jersey ! Mr. Larbalestier. Guernsey. Rev. T. 

 Salwey. 



"Spores .003 to .004 in. long, by .0015 to .002 in. broad." (Mudd.) "Spores 

 .015—19 mm. long, .009—11 mm. broad." (Nyl.) Spores .017— .019 mm. long 

 .011-012 mm. broad. 



15. P. fuliginosa, (Dub.) badio-umbrine, orbicular, laeiniato- 

 lobate, lobes oppressed, plane, crenate, fidiginosofurfuraceous or isi- 

 diose ; apothecia brown, margin thick crenulate ; medulla C red. 



On rocks frequent, and on trees less frequent. 



Stn :— Dub. Bot. Gall. 602 (1829). Nyl. Syn. 397. Flora 1868. p. 346. 



Geog. Disthib : — Europe. 



Bot. Pbov :— 4.. .5.. .7.. .12.. .15.. .20.. .26. 



England : — Burnside Lane near Staveley in Kendal, Westmoreland ! Mr. J. 

 A. Martindale. Norfolk ! Mr. D. Turner. W. Hill, Malvern. Mr. W. Joshua. 

 Long Mynd ! Stiperstones ! Pontesford Hill ! Haughmond Hill ! Lyth Hill ! 

 Shropshire. 



Scotland :— Birnam Hill, Dunkeld ! Dr. Lindsay. Park near Aberdeen ; 

 Kincardineshire Coast, Castleton, Braemar ! Mr. Groall. Forfarshire ! Mr. 

 Drummond. 



Ireland : — Near Cork ! Mr. Carroll. Dawros River ! and near Leonane ! co. 

 Galway. Mr Larbalestier. 



Wales : — Between Corwen and Bala ! Gwydir Woods ! Bettws-y-coed ; 

 Trefrivv ! (corticole in fruit.) Capel Arthog ! 



Forma olivacea, Leight. olivaceo-virescent, like P. olivacea, (L) but 

 coraloideo-isidiiferous, and with different reaction (medulla white 

 C red), 



On trees, very frequent, but sterite, rare on rocks. 



Syn : — P. Borreri, f. olivacea, Leight. L. Fl. 2d. ed. p. 479. 

 Exs :— M. & N. 161 (upper specimen), Anzilt. S. 114. Rabh. 928. Anzi. 114. 

 Geog. Distbib : — Switzerland, France. 

 Bot. Pbov :— 5, 6. 



England : — Throughout Shropshire ! 



Wales : — Bettws-y-coed ! Glyn ! near Capel Curig and throughout Mont- 

 gomeryshire ! Denbighshire ! and Carnarvonshire ! 

 Spores .016 mm. long, ,011 mm, broad. 



D. medulla of ihallus K yellow then red. 



16. P. perforata, "Wulf. whitish or glaucous-white, lobate or 

 lobato-sinuate or sinuato-divided, smooth, minutely retimilato-rimu- 

 lose, margin often albo-sorediate, under surface fuscous-black or 

 black ; apothecia badio-rufescent or fusco-rufous, often medio-per- 

 forate, margin entire ; spores 8, colourless, elliptical, simple ; 

 medulla white K yellow then red. 



On rocks and trees. 1836. 



Syn :— Wulf. in Jacq. Coll. 1. 116. (1786). Ach. Syn. 198. Nyl. Syn. 377. P. 

 reticulata, Tayl ! in Mack. Fl. Hib. 148. 

 Fig :— Dill. Muse. t. 20. f. 44. 

 Exs ;— M. & N, 253. Hepp 580. Schser. 360. in pt. Welw, Lusit. 75, 



