|26 CRYPTOGAMIA ALG.^. 



The ihiclds are of a dark, blackiflirl'^i'own color j 

 their margins paler, and a little crifped. 



This is a very dillind ipecies, though unnoticed 

 by Linnaeus. 



flumhctis^^ L. imbricatns, foliis obtufe lobatis plumbeis, fub- 

 tus cctruleo-fpongiofis, fcutellis ex rubro ferru- 

 gincis. (J^ilien. t. 24. /. 73. male. Michel gen. 

 pag. 91. /. 43. Ord. 23 /. I. welj&r. ^ fg. nojl.) 



Lcad-colour'd ipongy Lichen. Jfiglis. 



On trunks of trees about Drumlanrig frequent, 

 and in the deep cleugh called Barvtimpenn Linn^ 

 in the parilh of Kirkpatrick, about five miles 

 from Moffat. Dr. Burgefs. 



The leaves are laciniated, obtufely lobed and im- 

 bricated, of a blue-grey colour, and foft, thick, 

 claflic iubftance, like cork or leather, having 

 inumerable bluer fpo^gy hairs on the under 

 fide, which frequently extend beyond the extre- 

 mities of the leaves, and elevate them as it were 

 upon a cufliion. 



The fhields are of a brownifh red colour, fmall, 

 numerous, and crowded, their margins of the 

 colour of the leaves, and crenated when old. 



Some fpecimens, befides the fhields, have cluflers 

 of farinaceous powder on the edges of the 

 leaves. 



This Lichen is generally two or three inches, but 



ion}erimes even eight or nine inches broad. 



The 



