CRYPTOGAMIA ALG.^. §33 



^ The fhields are rarely found, but grow refiile up- 

 on the leaves, large, hollow, of a brownilh 

 black on the infide, and the colour of the leaves 

 on the outOde. 

 The leaves have a permanent bitter tafte. 



J^ ' "^ L. foliaceus ereftus comprelTus ramofus, verrucis 

 marginalibus farinofis. Syji. nat, ed't. 13. p. 8o7i 

 Sp. pL 1613. (yail. Paris, t. 13. 14, 15. Billen. 

 mufc. t. 2 7,. f. 63. opt. A-E.) 

 Narrow-cut warty Lichen. Anglis. 

 On trunks of trees frequent, ^ 



The leaves grow in a clufter^ erefir, comprefledj 

 " ;;v. .. -v from one to three inches high, fmooch on both 

 ;,':;,' fides, nightly grooved and pitted, and variouflv 



divided into narrow linear fegmcnts, pointed at 

 the extremities. 

 Their fubftance is Ibniewhat rigid, efpecially when 

 •.;-J . ■ dry, their colour, when moift, a pale glaucous^ 



when old or dry, whitifli. 

 .^ \_ 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. 



- - Dillenius feems to think this may be only one of 



■v . the fexes of the following, as that produces no 



;; farinaceous tubercles, and this properly no 



ihields. Scopoli is of the fame opinion. 

 : H h h It 



