ACOTYLKDONS. LICHENS. JLecanara. 5 I 



20. L. crassa, crust scaly greenish, lobes imbricated inciso- 

 crenate waved irregular, disk of the apothecia slightly swelling 

 brownish orange margin thin entire at length obliterated. 

 Ach. Syn. Lich. p. \3\. Lichen crassus, E. B. 1. 1893. Lich. 

 cartilaginous, Light/. p. 815. 



HAB. Rocks thinly covered with earth, not unfrequent, as in the 

 King's Park, Edinb., Light/. 



21. L. candelaria, crust scaly yellow, lobes very much crowded 

 cut and laciniated imbricated their margins minutely granular, 

 apothecia nearly of the same colour as the crust margin ele- 

 vated entire. LightJ. p. 192. Lichen candelarius, E. B. 

 I. 1794. 



/3. pottfcarpa, crust formed of lobes with many crowded teeth 

 and segments greyish yellow, apothecia crowded waved, disk 

 plane dilated of the same colour as the crust at length fulvous 

 and the margin crenulated. Lichen poly carpus, E. B. 1. 1 795 . 



HAD. Old posts and doors, occasionally, Hopk. (3. with a. 



This plant derives its name from the circumstance of the Swedes em- 

 ploying it to stain the candles that are used in their religious 

 ceremonies. 



22. L. hypnorum, crust scaly greenish brown, lobes minute 

 somewhat rounded with the margin granular and crenulated, 

 apothecia submembranaceous, the disk concave at length di- 

 lated plane reddish brown the margin elevated inflexed crenate. 

 Ach. Syn. Lich. p. 193. Lichen hypnorum, E. B. t. 740. 



HAB. Rosslyn wood, 'Maitgh. 



23. L. carnosa, crust scaly lividbrown, lobes irregularly anddeeplv 

 cut and laciniated, apothecia thick with the disk plane reddish 

 brown at length elevated and obliterating the entire margin. 

 Ach. Syn. Lich. p. 193 (L. muscorum). Lichen camosus, 

 E. B. i. 1684. 



HAB. Wet rocks among moss, not uncommon in the Highlands. 



24. L. Irunnea, crust imbricated lobed and granulated ash- 

 coloured brown, apothecia imbedded in the crust crowded 

 irregular^ disk rather convex red-brown the margin elevated 

 crenulated persistent. Ach. Syn. Lich. p. 193* Lichen Irun- 

 neus, E. B. t. 1246. 



HAB. Discovered in Britain, by Dr. Burgess, in Dumfries-shire, and 

 Dr. Hamilton (late Buchanan) near Stirling. Not uncommon on 

 the ground in heathy places. Pentland hills, Maugh. 



25. L. Hookeri, crust imbricated greyish, lobes minute appress- 

 ed blunt, disk of the apothecia plane black margin elevated 

 and crenate. Ach. MSS. (according to Swartz). Lichen 

 Hookeri, E. B. t. 2283. Lichen leucolepis, Wahl. Lapp. 



p. 420. Lecanora leucolepis, Ach. Syn. Lich. p. 194. 

 HAB. On wet micaceous rocks of Mael Greadha and Ben Lawers, 

 Mr. Borrer and Hook. 



[D2] 



