CRYPTOGAMIA ALGIE, S39 



The curled maip-jns of the fesments are flio-htly 

 farinaceous, but no other part of the leaves. 



The (hields we have never yet feen. DU'enius 

 defcribes them as extremely fmall and fufcous, 

 but fuppofes that they v/cre not arrived to their 

 full fize. 



It. is fo nearly related to the Lichen pcrlatus next 

 defcribed, that I am tempted to think it may 

 be only a variety of it. 



perlatus 51 L. foliaceus repens lobatus glaber, fubtus atris, 

 fcutellis peduriculatis integris. Budf. hi. /h^g- 

 448. Lin. fyji. edit. 13, f. 8c 8. {Michel, gen. i. 

 50. ord. 24./. I. Vail. Paris, t. 21, /. 12. Dil- 

 len. rnv.fc. t. 10./. i^^.A-E. opt.) 



Common blue curled Lichen, yingiis. 



Upon the trunks of oaks and other trees very- 

 common. 



The leaves are. of a glaucous colour when moill, 

 of a v;hitilh afn-colour v/hen dry, imooih on ^ 

 the-furface, but not gloffy, divided into obtule 

 fmuated fegments, ek^vated and curk-d on the 

 edo-es. Tiie under fide, iud at the extremities, 

 is fmooth and of a brov.nifh black, all the reil 

 quite black, rough and h.airy. 



But the principal chara6lcr of this fpecies is, that 



the meandering margins of the interior leaves 



are elevated and refiexed, and fwell'd with a 



'■' ' vuiiitifn farinaceous powder. Befides wiiicii pow- 



■'- • ■ . dcr 



