CRYPTOGAMIA ALGiE. 833 



The Ihields are rarely found, but grow feilile up- 

 on the leaves, large, hollow, of a brownifh 

 black on the infide, and the colour of the leaves 

 on the OLitfide. 



The leaves have a perrhafienc bitter tafte. 



L. foliaceus creflrus comprelTus ramofus, verrucis 

 marglnalibus farinofis. Syjl. nat. ed^t. 13. p. 807^ 

 Sp' pL 1613. (Vail. Paris. /. 13. 14. 15. Dilk?^. 

 mufc. /. 23./. 63. opt. A-E.) 



Narrow-cut warty Lichen. An^iis. 



On trunks; of trees frequent. 



The leaves grow in a clufter, eredl, comprefTed, 

 from one to three inches high', fmooch on both 

 fides, (lightly grooved and pitted, and varioufly 

 divided into narrow linear fegments, pointed at 

 the extremities. 



Their fubliance is fomewhat rigid, efpeciaElly when 

 dry ; their colour, when nioifl, i pale glaucous^ 

 when old or dry, whitilH. 



On the edges of the leaves are many fmall white 

 farinaceous warts, at firft concave, afterwards 

 larger, more prominent and flat, appearing as 

 if little portions of the fubftance of the leaves 

 had been cut off where they grow. 



Dilknius feems to think this may be only one of 

 the fexes of the following, a^ that produces no 

 farinaceous tubercles, arid this properly no 

 fhields. Scopoli is of the fame opinion, 



H h h It 



