280 Rev. W. A. Lcighton on thr Brifixh t'inbiHcari?e. 



Sprcmionsof r/'o.w from I'jisal, Sweden, Fries fU.', Stockholm, 

 Dr. Ni/laiit/cr, and Saibten, AJ. P/iilijij/c, in my own herbarium, 

 ai-e idcjitical with our Uritislj plant. ' 



Platk X. fig. 7- Sporidia. Fig. H. Section of tliallus luul apoUiecia. 



f. pelliln, DC. Thalhis tliiii, unequally lobed and crenate; 

 upper side greenish copper-colour, smooth; under side bhick, 

 papillose, ivticuhited and densely fibrous; trica; ininiarginatei' 

 "rrowinir out into tuits of fibres. 



Lichenoides jjulliiin superne et glabruin, in/erne niyrum et cirrosuin, Dill. 



•jjCk t. :w. f. \:m (17-11). 



7.ic/k-« i>olyrhi:ns, Linn. Sp. I'l. KUB? ; Lightf. Fl. Scot. 2. HfJJ ; Rohson, 



\\t. Fl. M\ : With. Air. 4. (i4 (cxcl. svn. 2'1« Dill.). 



velleus «, IIii.ls. Fl. Aiigl. oil) (177t<") (e.\cl. var. (i). 



Umbilicaria vellea, llotfm. PI. Licli. 2. !). t. 2fJ. f. .'J (cxcl. Linn, syn.) (17!M), 



admirable; Sclirad. Siiicil. 105 (cxcl. syn. Lightf.). 

 Lichen hirsutiis, Wc-str. in Act. Stockli. IJ^-^-i (fide Acli.). 

 j>elli/ns, Acli. in Act. Stockli. xv. \)^). t. 3. f. 2 (17!^4); Prod. 1 1!> ; Sin. 



K. iJot. t. Wl. 

 Gyrophora pellUn, Ach. Meth. 108 (ISO.'J) ; L. Univ. 228. t. 2. f. 10 ; Syn. 



(i7; Tnrn. &l?()rr. ! Lich. Biit. 2:58 ; Hook. Fl. Scot. 2. 42; IJi-it. 



Fl. 2. 21!»; Tavl. Fl. Ilib. jit. 2. i:)5 ; Chcv. Fl. Paris. 1. 644. 

 Vmbilicuriapclliiii'.DC. Fl. Fran?. .'Snl cd. 2. 40!> (ISO.5). 



ilepressa, fi. spadochroa F, Sclucr. Spicil. 8.'i. '.MVI (182.'J-3()). 



Gyromium polyrrhizon, Wahl. Fl. Suec. 8o8 (1824-2G). 



Umbilicaria polyrrhizos. Fries, L. Reform. .'^.38 (1851 ) ; Snrama Veg. Scind. 



117; Scha;r. Enum. 2!); Nyl. N. Class. 175. 



On the rocks called Llyn Llydaw, Snowdon ; and about Llyu 

 Cwm y Ffynnon tas; also on the summit of the mountains at 

 Cwm JJrwynog towards Ardhu near Llanbcrii.s, DiUimius. High- 

 lands and Lowlands of Scotland, Liyhtfout. Clark's Park and 

 Paradise near Moneymusk, Aberdeenshire, Wit/ieririf/. Carnedd 

 Llewellin, near the summit. On Mocl Shabod near Ca})el Ccrrig, 

 Caernarvonshire, Mr. Griffith. Yorkshire, Mr. IV. Brunton. 

 Durham, Rev. J. Harriman. Cheshire, Turner and Borrei\ On 

 rocks on Tonlagee, Co. Wicklow, Dr. Taylor. Scotland ! Mr. 

 G. Dunn in herb. Borrer, without locality (fructu) ! Mr. ^oinerbij 

 ill herb. Borrer. Cronkley (fructu) ! Mr. W. lioberlsoa in herb. 

 Borrer. L(jch i'hadrick ! Craig Koynoch ! Clava ! Mr. IV. Gard- 

 ner in herb. Borrer. Ben Fen-ag ! Llyn Canvay ! Mr. Borrer. 

 Near LakcTumancI, Cumberland (fructu) ! Mrs. Joshua Siunycr. 

 Jiarmouth, N. Wales ! Rev. T. Salwei/. Clova ! Mr. G. Laivson. 



'' Thallus peltate, sometimes simple, but generally consisting 

 of many leaves, spreading from a common central disk, by which 

 they are affi.xed to the stone, in a roundish cluster varying from 

 1 to 3 or 4 inches in diameter; many such clusters often ibrming 

 together irregular ])atches of considc.'rable extent : the leaves vary 

 juuch in size, in j)roportion as the thallus is more or less com- 



