OF GREAT BRITAIN. 161 



Channel Islands :— Guernsey. Kev. T. Salwey. common on all the Islands. 

 Mr. Larbalestier. 



' ' Spores .002 to .00125 in long, by .00125 to .0015'. in. broad." {Mudd.) " Spores 

 .011-14 mm. long, 007—8 mm. broad." (Nyl.) '"Spores .011-16 mm. long, 

 ,004—7 mm. broad.". (T. M. Fr.) 



Forma lobulatum, (Smrft) vitettinous, sub-effuso-areolate, almost 

 obliterated, sub-effignrate or crenato-lobulate ; apothecia numerous 

 and crowded. K red or purple. 

 On rocks. 



Stn :— Smrft. Lapp. 87, (1826) Nyl. Soand. 136. Mudd Man. 123. 



Fig :— Hepp Sporen t. 9. i. 71. 



Exs :— Lindig 162. Mudd 95. Hepp 71. AnziLangob. 275. Leight, 207. Larbal. 

 74. 



G-eog. Distbib : — Europe, Asia, Africa, America. . 



Bot. Pkov:— 1. .6, 7,... 10...15...19...26...80...31. 



England; — Ayton! Yorkshire, Mr. Mudd. Torquay. Dr. Moll. N. Devon, 

 Mr. ParUtt, 



Scotland : — Kincardine. Rev. J. M. Crombie. 



Ireland : — Coast of Antrim, Dr. Moore. Black rock, Cork. Mr. Carroll. Kyle- 

 more ! co. Galway. Mr. Larbalestier. 



Wales : — Southerodown ; Glamorgan. D>: Boll. Llyn Aran ! Cader Idris ! 

 Bhyll ! Gimlet Bock! Pwllheli. Y Fegle- fawr ! near Barmouth. Caswell Bay ! 

 Mumbles. 



Channel Islands : — Coast of Guernsey, Jersey, Sark, Herm, Jethou ! Mr. 

 Larbalestier. 



"Spores .0025 in. long, by .001 in. broad." {Mudd.) Spores .012-. 0135 mm. 

 long, .005—6 mm. broad. 



Forma dissidens, Nyl. lacinise of thallus much more separated and 

 freer, very minutely granulato-scabrous on the upper surface. 

 Spores .009 — 16 mm. long, .009 — 16 mm. broad. 



On argillaceo-schistose rocks. 



Stn:— Nyl. in Flora 1875. p. 298. 

 England ; — Near Cirencester ! Mr. Joshua. 



2. P. cirrhochroum, (Ach.) aurantiaco-vitellinous, orbicular, cen- 

 trifugo-laciniate, lacinice very narrow, linear, parallel, convex, incurved 

 and entire, subincised or sublobulate at the apices which are 

 slightly albo-pruinose or granidato-scabrous, efflorescent in the centre 

 into, golden soredia ; apothecia very rare, minute,- scattered, plane, 

 orange-coloured ; margin elevated, nearly entire ; spores 8, colour- 

 less, oblong, polari-bilocular, minute. 



On limestone rocks, rare. 1871. 



Syn :— Lecanora, Ach. Syn. 181. Placodium, Nyl. Scand. 137. Amphiloma, 

 Kbr. Par. 49. 



Exs.— Schaer. 480. Am. 160. Anzi Langob. 31. 316. 



Geog. Distbib :— Switzerland, Germany, Italy. 



Bot. Pkov. :— 1...12. 



England :— Near Arnbarrow and Milnthorp ! Leyens Park ! Westmoreland ! 

 Mr. Martindale. (1871.) Brancombe Cliff ! Beaton, Devon. Mr. Holmes. 



" Spores .013—18 mm. long, .005—6 mm. broad." (T. M. Fr.) 



3. P. decipiens, (Arn.) pale dirty vitellinous-yellow, opake, thin, 

 crustaceous, orbiculari-radiate, adnate, plicato-laciniate at the cir- 

 cumference, lacinise narrow, convex, incurved and sub-crenate at 

 the apices, verrucoso-areolate in the centre, conspicuously granu- 

 loso-scabrous, almost leprose, on the upper surface of the thallus 

 and on the thalline margin of the apothecia; apothecia con- 

 colorous, sunk, plane, waxy ; spores 8, colourless, ellipsoid, polari- 

 bilocular. 



M 



