CRYPTOGAMIA ALG^. 807 



It is an elegant fpecies, very obvious at fi rl^ fight. 

 That Dillenius intended this kind, by the figure 

 and defcription referred to, we are certain, by 

 having been indulged with a fight of the very 

 fpecimen which he defcrib'd by Dr. Sihtborpf, at 

 Oxford. 



The texture and appearance of this indicate that 

 it would anfwer the purpofes of dying, as well 

 as others of this tribe, if fufficient plenty of it 

 could be found, and experiments were made. 



fagifteus 14 L. leprofus albus, tuberculin albis farinaceis. Sp, 

 pi, 160H, {Michel, gen. /. 53./. 1. 2. 4. DilleTt. 

 mufc. t. 18./. II. yf. B.) 



Mealy Beech Lichen. Anglis. 



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

 quent. 



The crud is very thin and al"h-colour'd, fprinkled 

 over with numerous fmall white mealj tubercles. 



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

 ' 15. pi. 1608.? (Dillen. viufc. t. 18./. 11. C.Df) 



L. albefcens. liudf. Aug. p. 445. 

 Grt*y orbicular Lichen. Anglis. 

 Upon the fmooth bark of beech, and other trees 



frequent. 

 The cruil 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 



