OF GREAT BRITAIN. l5'7 



Sub-tribe IV. SQUAMARIEI. 



Thallus radioso-laciniate or cartilagineo-squamose, often radiate. 

 Apothecia lecanorine. Spores colourless, ellipsoid, simple. Para- 

 physes distinct. Spermatia aciculari-cylindrioal, long, arcuate. 



IV. SQUAMAEIA. DC. 

 Characters as above. 



1. & crassa, (Huds.) pale yellow or, whitish-green, squqmdso- 

 imbricate, squarnse cartilaginous, imbricated, tobato-crenale, more, or 

 less depressed, under surface brown ; apothecia testaceo-rufous, plane, 

 margin entire ; spores $, colourless, ellipsoid, simple. 



On earth in limestone regions, frequent. 1741. 



Syn :— Hudson Fl. Angl. 2nd. «d. 530. (1778.) Ach. Syn. 190. Nyl. Scand. 

 130. Mudd Man. 127. * H 



Fig :— E. Bot. 1893. HeppSporen t. 70. f. 616. Sturm Fl. D. t. 9. 



Exs :— Mass. 72. 73. 74. M & N. 1051. Nyl. L. P. 116. Mudd 91. Bohl. 2. 

 Anzi It. S. 155. Rabh, 739. Hepp 616. Schser. 343. Am. 2. Larbal.?3. Leight. 5. 



Geog. Distbib :— Europe. Africa, Australasia. 



Bot. Pkov :— 1, 2. ..5.. .7, 8. ..10, 11. ..14. ..23.. .27. .31. 



England : — St. Vincent's rocks, Bristol, Sir J. E. Smith. Diwdhaflu Down ; 

 Bristol ! Mr. Mudd. Oswestry ! Shropshire. Rev. T. Salwey. Eglestone, Durham. 

 Rev. J. Swrriman. Wensleydale, Yorkshire. Mr. Brunton. Hurstpierpoint, 

 Sussex. Mr. Hemmings. near Settle. Dr. Windsor. Malham, Yorkshire ; West- 

 moreland. Mr. Hudson. Marble Stone near Middleton-in'Teesdale,' Durham. 

 Mr. Winch, near Torquay; near Buxttm. Dr. Boll. Berrj^Head: Croyd Bay. 

 N. Devon. Mr. Parfttt. ' ■■ ' 



Scotland :— King's Park, Edinburgh. Rev. J. Ligktfoot: Peirtland Hills: Dr. 

 Greville. 



Ireland :— Mornington co. Meath ; Skerries near Dublin ! Dr. Moore, near 

 Dublin. Mr. Carroll. Ben Bulben, Sligo. Prof. Dickie. 



■ Wales : -'-Puffin Island 'near Beaumaris. Rev. A. BloXdM. Holywell 1 Flint- 

 shire. Prof. Churchill Bahington. Llanddtoyn rocks near" Newborough, : Angle- 

 sea: Glyders. Djllenius. (1741. ), Great Orme's Head ! Eglwyseg rocks ! 



'Channel Islands: — Quenvais, Jersey; Coast of Herm! Mr. Larbalestier. 

 Guernsey.' Rev. T\ Salwey. 



" Spores, .0025, to .003 in. long, by .001 in. broad." (Mudd.) ,; Spores .011— 

 14 mm. long, .005-6 mm. broad." (Nyl. <fc T. M. Fr.) 



2, ,S. lentigera, (Web.) paje yellowish or greenish- white, orbicular, 

 oppressed, areolato-squamose in the centre, radiato-lobate at the circum- 

 ference, rotundato-undulato-crenate, margin thickened, upturned, 

 albo-pulverulent, under surface white ; apothecia pallido-testaceous, 

 margin entire ; spores 8, colourless, ellipsoid, simple. 



On chalky earth, rare. 1785. 



Syn :— Weber Spicil. 192. (1778.) Ach. Syn. 179. Nyl. Scand. 130. Mudd Man. 

 128 



Fig :— E. Bot, 871. Web. Spicil. t. 3. Eelh. Cant. t. 7. Hepp t. 20. f. ; 179. 



Exs :— Hepp 179. M. & N. 68, Schaer. 484. Anzi It. S. 154. Dicks. 23. Mass. 

 91. MaudopBl. . 



Geog. Distbib ^Europe, Africa. 



BOT. Pbov k-2... 4, 5.. .16. 



England : — Gogmagog Hills ! Newmarket Heath, Cambridge. Rev. R. Melhan. 

 (1785). near Newhaven. Sussex. Mr. Hemmings. Hord's Park near Bridgnorth, 

 Salop. Mr. Purtw. 



Scotland : — Ben Brecht, Argyleshire. Mr. Paterson. 



"Spores .OO35,fco. 4 O03in. long,. by .001 in. broad, t 2. f. .40." (Mudd.) "Spores 

 jMS mm. Ionferi005 mm. .broad.f (Nyl.) '"iSpores .011— 12 mm. i long,' .005 

 mm. broad." (T. M. Fr.) 



