8i8 CRYPTOGAMIA ALGM. 



emphalodes. L. imbricatus, fojiolis mukifidis glabris obtufis 



^9* fpadiceo fufcis, pundis vagis eminentibus. Sp, 



pL 1609. {VaiL Paris. /. 20./. 10. bona. DUhn, 



mufc. t.2^.f.%o. A.-D,) 



Dark purple Dyer's Lichen. Cork or Arcell. 



Anglis. 

 Crotal. GauUs. i 



Cen-cerig. Cen du. Ccmhris. \ 



Upon rocks frequent. j 



This is fo very like the preceding, except in co=.' 

 lour, thac I have often been tempted to think 

 it only a variety of it. It differs however in 

 the following refpecfts : 

 It forms a thick widely-expanded crull, of no re 

 gular figure, compoicd of numerous imbricated 

 leaves o^ ^ brown or black purple colour, di- 

 vided into fmaller fegmcnts than the preceding' 

 which fegments arc generally bifid at the cxtpc- 

 mity, and the black rigid hairs on the under 

 lide approach lo near their edges as to be vifibL 

 without turning the leaves. Add to this, tha 

 the furface of the leaves is more fmooth an< 

 iliining, and fcarce vifibly pitted, but onl] 

 fprinkled with numerous fmall white dots, 0. 

 fcratches. 

 The ihields arc of the fame colour, and very lik( 

 the preceding, their margins a little crifped, aa^ 

 turned inwards, their outfidc aili-coiour'd. 



Tbili 



