OP GREAT BRITAIN, 163 



Ireland : — Co. Down, Dr. Maingay. 



Wales : — Southerndown, Glamorgan. Dr. Boll. Eglwyseg rocks ! Great 

 Orme's Head ! Giltar Point ! Tenby. 



" Spores .0025 to .00325 in. long, by 0015 in. broad, t. 2. f. 42." (MvM.) 

 "Spores .008—13 mm. long, .006—10 mm. broad." (T. M. Fr.) 



Var. plicatum, Wedd. lacinice of thallus narrow, convex, incurved 

 and sub-crenate at the apices, precisely like those of P. murorum, 

 but smooth and waxy on the upper surface ; spores lemon-shaped ; 

 K red or purple. 



On rocks, &c, frequent. 



Syn :-Weddell in Bull. Soc. Bot. 16. p. 200. (1869.) Nyl. 1. >;. 13. 366. 



Fig :— Hepp Sporen t. 22. f. 197. 



Exs :— Hepp 197. Anzi Langob. 444. a. Mass. 94. 95. Anzi S. 134. b. 

 Fellm. 103. Mudd 96. 



Geog. Distrib : — Europe. 



Bot. Phov :— 3.. .5, 6, 7.. .10.. .15.. .26. 



England : — Craig-y-Bhiw ! near Oswestry, Shropshire. Rev. T. Salwey. 

 Yorkshire ! Mr. Dixon. Aymestry ! Herefordshire. Llanymyneoh Hill ! Shrop- 

 shire. Norton Camp ! near Craven Arms. 



Scotland :— Blair Athol. Rev. J. M. Grombie. 



Ireland : — Dawros river ! co. Galway. Mr. Larbalestier. 



Wales :— Eglwyseg rocks ! Gimlet rock ! Pwllheli. Eishguard ! St. David's 1 

 Pembrokeshire. Great Orme's Head ! 



Var. sympagea, (Ach.) dark orange-coloured, orbicular, sub-im- 

 bricate, foliaceous and lobate, plane in the circumference ; apo- 

 thecia minute, concolorous. 



On calcareous rocks. 1876. 



Syn :— Ach. Prod. 105. Univ. 437. Syn. 184. 



Ireland: — Buin at Cleghan, Galway. Mr. Larbalestier (1876.) 



6. P. citrinum, (Ach.) yellow, crustaceous, effuse, granutoso- 

 leprose, rimoso-areolate ; apothecia yellowish-orange, plane, margin 

 sub-entire, pulverulent; spores 8, colourless, ellipsoid, polari- 

 bilocular. K purple. 



On rocks, walls, mortar, &c, frequent. 1807. 



Syn :— Ach. Prodr. 73. (1798.) Nyl. Scand. 136. Mudd Man. 132. 



Fig :— E. Bot. 1793. Hepp Sporen t. 9. f . 72. 



Exs :— M. & N. 742. Nyl. 35. Hepp 72. Leight. 86. Anzi Ven. 25. 



Geog. Distrib : — Europe, America. 



Bot. Pbov:— 1...3, 4, 5...7...10...(19— 30). ..31. 



England : — Norfolk. Sir J. E. Smith. Yorkshire. Mr. Hailstone. Worcester ! 

 Dr. Eoll. Heavitree, Exeter. Mr. JParfitt. Kelvedon, Essex. Mr. Varenne. 

 near Monmouth. Mr. W. Joshua. Torquay ! Devon. Dr. Deakin. Shrewsbury ! 

 Broomhill I and Shropshire, frequent ! ! 



Scotland : — Frequent in the lowland districts. Rev. J. M. Crombie. 



Ireland : — On mortar, common. Mr. Carroll. 



Wales : — Barmouth ! 



Channel Islands :— Jersey ; Guernsey ; Sark ; Mr. Larbalestier. 



"Spores .003 in. long, by .0015 in. broad." (Mudd.) "Spores .010—15 

 mm. long, .005 — 8 mm. broad." (Nyl.) 



7. P. elegans, (Link.) dark orange-red, suborbiculari-stellate, 

 laciniee distinct, linear, narrow, multifid, upper surface glabrous ; 

 apothecia dark orange-red, plane, margin entire ; spores 8, colour- 

 less, ellipsoid, polari-bilocular. 



On exposed rocks and stones, rare. 



Syn :— Link, in Ann. Bot. 1. 37. (1794.) Nyl. Scand. 136. Mudd Man. 131. 

 Fig :— Hepp Sporen t. 22. f. 195. E. Bot. 2181. (right hand fig. only). Flora 

 1875. t. 5. i . 6. 



