Lecidea.] LICHENES. 177 



convex slightly immersed in the crust bordered when young. 

 Sm. — Lichen dubius, E. Bot. t. 2347. 

 Common on boarded buildings. Smith. 



16. L. Griffithii, (Griffithian Lecidea); crust thin white 

 smooth, apothecia sessile scattered pale purplish waxy-brown 

 with a smooth bonier of the same colour blackened in decay. 

 Sm. — Lichen Griffithii, E. Bot. t. 1735. — Lecidea enteroleuca, 



Ach. Syn.p. 19. (Borrer.) — Lichen cor -ens, With. — Hull. 

 On C'ak and Birch bark. 



17. L. Gdgei, {rusty spongy-crusted Lecidea); crust dispersed 

 minutely granulated somewhat fibrous bibulous of a tawny olive, 

 apothecia minute blackish-brown with a paler border of their 

 own substance finally convex and deprived of their border. Sm. 

 — Lichen dolosus, E. Bot. t. 2581. (not Ach., according to Mr. 

 Borrer.) 



On a rock called O'Donoghue's prison, at Killarney, Sir T. Gage, 

 Bart. — The Lecidea dolosa of Ach., Mr. Borrer informs me is only a var. 

 of L. parasema. 



18. L. aromdtica, Turn. Mss. {aromatic Lecidea); crust 

 strongly rooted (?) indeterminate of irregular minute crowded 

 smooth greyish- white portions, apothecia in the interstices 

 black round concave with a thick black border. Sm. — Lichen 

 aromaticus, E. Bot. t. 1777. 



On old flint walls in Norfolk and Suffolk, especially where there is 

 a stratum of earth or moss, Mr. D. Turner. — The fragrant scent of 

 this Lichen, when bruised, is very remarkable. Sir J. E. Smith ranks it 

 with the L. (xeruleo-nigricans } and if that be its affinity, it would be a 

 Psora of this arrangement. 1 rather follow Mr. Borrer, in placing it 

 among the true Lecidea-. 



19. L, sangwndria, Ach. (sanguineous Lecidea ); crust thick- 

 ish ragulose <>r waited greyish-white somewhat polished, apo- 

 thecia at length convex heinispluerical subtuberciilated black 

 and horny within upon a bright-red stratum. — Ach. Syn. />. 1!'. 

 — Lichen sanguinarius, E. liot.t. 155. 



On rods and trees, especially in subalpine districts. 



l'o. L. mtucArum, ( Moss Lecidea); crust determinate granu- 

 lated grey somewhat Ipbed and branched, apothecia crowded 



black elevated at length .somewhat turbinated. — Lichen musco- 



ran,. " Linn. Metli. MuSC. p. 36. //*///. Cant, p . 424. t. 5. Dicks. 



Cr. PL .')!»."' /;. Bot t. 686. — Lecidea sabuletonttn, Flbrhc. — 



Ach. Sun. p. 20. ( Borrer,) 



On mosses, Uogmagog bills, near Cambridge, Mr. Rdkan; and else- 

 where. 



L'l. L. r/ridi-afni, Ach. (rough tar'nr-erustt d I < r ,/< r ); CTllfl 

 continued t art areou- i t;m bed tumid uneven ami granulated pale 



brownish-grey, apothecia id the interstices crowded Aattiah 

 black at length convex with s very thin black border. Sm — 

 Ach. Syn*p.2\.— Lichen miseeUms, /'. Bot t 18S1. (not I •< 



M 



