ACOTYLEDONS. LICHENS. Ltddca. 39 



1(>. L. dccoloratis, crust granulated greyish white, granules be- 

 coming pulverulent, apotheeia nearly plane reel flesh-coloured 

 livid or brown with the elevated margin paler at length flexuose. 

 Ac It. Syn. Lich. p. 37. 



/3. gra?iulosa, crust firmer granulated and subpapillose, apothecia 

 at length hemispherical rugose brownish-black and black 

 confluent. Ack. Lichen escharoides, E. B. t. \247, and Lichen 

 quadricolor, E. B. 1. 1185. 



HAB. On the ground by the side of Loch Lomond, Mr. Turner and 

 Hook. 



17. L. rupeslris, crust thin tartareous contiguous greyish white, 

 apothecia immersed plane margined at length convex the 

 margin persistent glabrous reddish brown of the same colour 

 within. Ach. Syn. Lich. p. 39. Lichen rupestris, E. .B./.2245. 

 Lichen calvus, E. B. t. 948. 



HAD. Upon rocks in the subalpine parts of Scotland, Dickson. 



18. L. lufeola, crust thin whitish covered with somewhat glo- 

 bular pale granules at length greyish, apothecia sessile becom- 

 ing convex yellowish brown. Ach. Syn. Lich. p. 41. Lichen 

 vernalis, Lightf. p. 805. E. B. t. 845. 



HAB. On the bark of trees, Lightf. 



19. L. fusco-lutea, crust spreading very thin membranaceous 

 white or greyish somewhat shining subgranulose, apothecia 

 plane yellow-brown at length red-brown with the margin paler 

 elevated at length flexuose. Ach* Syn. Lich. p. 42. Lichen 



fusco-luleus, E. B. t. 1007. 



HAB. Highland mountains, plentiful. On low ground in Orkney, as 

 in the isle of Eda, covering grass, moss, c. 



20. L. anthracina 9 crust spreading somewhat scaly uneven 

 roughish darkish brown, apothecia minute plane reddish-yel- 

 low with the margin paler at length somewhat convex and 

 brownish. Achar. Syn. Lich. p. 43. Lichen byssinus, E. B. 

 f.482. 



HAB. On rocks and on trees, Scotland, Dickson. 



21. L. cat$io-ntfa y crust tessellated rugose darkish grey, apo- 

 thecia plane rusty orange the margin sometimes crenulate at 

 length convex with the margin obsolete blackish red. Ach. 

 Syfi. Lich. p. 44. Lichen ferrugineus, E. B. t. 1G50. 



HAB. Rocks on Ben Nevis and Ben Lomond, Mr. Turner and Hook. 

 Hocks and trees, frequent, Hopk. 



22. L. icmadophila, crust leprose uneven somewhat granulated 

 greenish white, apothecia nearly sessile plane flesh-coloured 

 at length waved roughish in the disk margin scarcely any. 

 Ach. Syn. Lich. p. 45. Lichen ericetomm /3, Lightf. p. 809. 

 -L. ericetorum, E. B. t. 3/2. 



HAB. Upon the ground in heaths, sides of peat-bogs, gravel-pits, and 

 on bunks, Lightf. p. 809. 



