CRYPTOGAMIA ALG^E. 807 



It' is an elegant fpecies, very obvious at firft fight. 



That Dillenius intended this kind, by the figure 



and defcription refiirrrcd to, we are certain, by 



.'■. ' ^-■' ' having been indulged wirh a fight of the very 



' ■ Ipecimen which he delcrib'd by Dr. Sibtborpc, at 



Oxford. H 



■ The texture and appearance of this indicate that 



^" . it would anfvver the purpofes of dying, as well 



as others of this tribe, it lufficient plenty of it 



could be found, and experiments were made. 



fdgintus 14 L. leprofus albus, tuberculis albis farinaccis. Sp. 

 ■pi. 160H. {Michel, gen. t. ^2- f' '• 2. 4. Dillcn. 

 mtifc. t. iS.f. II. J. B,J 



Mealy Beech Lichen. Anglis. 



Upon the bark of beech, oak, and other trees fre- 

 quent. 



The crull is very thin and alh-colour'd, fprinkled 

 over with numerous Ihiall white mealj tubercles. 



carpineus L. leprofus cinereus, tuberculis albidis rugofis, Sp. 

 j^. pi. 1608? (DHkn. mulct. iS. /, 11. CD.?) 



' ■ ' ' ■ L. alhefcens. Hudf. Ang. p. 445. 

 ''■ ' \'' Grey orbicular Lichen. Jaglis. 

 ■ • '■ " Upon the fmooth bark of beech, and other trees 

 ' . frequent. 



* The cruft is very thin, grey, or lead-colour'd, 



'*• '■■-■- -■ and fpreads upon the bark in a circular form, 

 the circumference being diftinguifhed by con- 

 centric circles of different colours, alternately 



olive 



