hutiuni.] LICHENES. 231 



On old rails and the bark of trees, in England. Walls of Forncet 

 Church-yard, and bricks on the top of the steeple of Burgh Church, 

 Suffolk, Mr. Tamer. 0. chiefly on the trunks of trees. 



3.1. Westrmgii, Ach. (speckled Isidium); thallus tartareous 

 thickish cracked into tumid very rugged areola greyish-brown 

 with a zonate border, podetia scattered and crowded simple 

 and branched in a connate manner of nearly the same colour as 

 the crust, apothecia brown immarginate. Turn, and Burr. — 



Ach. Si/n. p. 282 Lichen Westringii, Ach. in At. Holm. v. 15. 



p. 179. t. (>./: 1. E. Bot. t. 2204.— L. pseudo-corallinus, Westr. 

 in Ach. Holm. 



On rocks and stones in the north of England, Wales and Scotland, 

 and about Dublin. 



4. I. microsticticum, Turn, and Borr. {small dotted Isidium); 

 thallus tartareous cracked into smootliish areola.' and nearly even 

 of a brownish cream-colour becoming thinner by degrees to- 

 wards the edges, podetia scattered short simple of the same 

 colour as the crust, apothecia brownish with an imperfect mar- 

 gin. Tun,, and Borr. Lich. Brit. p. 94. Hook. Fl. Scot. P. II. 



),. 66 Lichen microsticticus, E. Bot. t. 2243. — Isidium hcri- 



gatum, Ach. Syn. p. 281 ? Lich. Univ. p. 577. t. II. f. 7 ?— 

 (3. album ; thallus white, podetia frequently confluent. Turn. 

 and Borr. 1. c. — Lccidea jxipillosa, Ach. Lich. L'uiv. 171. (Sir 

 T. Gay,.) 



On slate and other rocks, in mountainous countries. Plentiful about 

 Lough Bray, Dublin.— fi. Ireland, Sir T. Gage. 



5. I. paraddxum, Ach. (dubious Isidium); thallus tartareous 

 thickish of a leaden-grey cracked into tumid rugged and some- 

 what plicate areolae the v^ii;^ indistinctly zonate, podetia scat- 

 tered short simple of the same colour as the crust, apothecia 



brownish immarginate. large white glomeruli resembling eyathi 



-.■an. -ird over the thallus. Turn, and Borr. Lich. Brit.p. 97. 

 — Isidium corattimtm (a state of), Ach. Meth. p. L38. /. 3./. '■ 

 /). /;. — Variolaria corallina, Ach. Lich. Univ. p, 319. /. &.f. 6. 

 Ach. Syn. p. 133. — Lichen dea&atus, Ach. Prodr.f. 29. 



Rocks 011 mountains, not uncommon in Wales and Scotland. Kil- 



larney, Sir T. Oage. Bantry, Miss Butchins. North of England, 



Thomhill. — " This beautiful production is another of those B] i 

 which place difficulties, apparently insuperable, in the waj oft satisfac- 

 tory arrangement of the Lichens. The thallut and its po<L tia bo< xactly 

 resemble those of the acknowledged frufio, that we dare not refuse the 

 plant a place m this Genus, whilst the warts which we have described 

 hear everj character of the cyatki of the Variolar**, wad no slight re- 

 semblance also to the apothecia of both the Tkeiotr t ma t a and the I 

 olariaf." Tut >i. and Borr. 



6, I. cordllinum, A.h. (whin Isidium); thallui tartareoui 

 thin cracked into tumid rugged areola- whitish "iil< an indis 

 tin. t sonate border, podetii rerj abundant denselj crowded 

 branched and anastomosing of the same coloui as the thallus. 



