Si6 . CRYPTOGAMIA ALGJE. 



• , 'J'he fhields are of a dark, blackilh, brown color; 



:'.i: their margins paier, and a little crifped. 



'"'•*■ ' This is a very diftind: Ipecies, though unnoticed 



' ■ • ■ ■ ' by Linnaus. 



■'■,.'■■ ' ' • . -^ 



flumueus^'i L. imbricatus, foliis obtufe lobatis phimbeis, fub- 



":.'■ /, ; tus ccerulco-l'pongiofis, fcutellis ex rubro ferru- 



;:.- - , • gincis. {Dillen, /. 24. /. 73. tmile, Michel, gen. 



Lcad-colour'd fpongy Lichen. Anglis. 



On trunks cf trees about Drumlanrig frequent,. 

 and in the deep cleugh called Barnlimpenn Linn^ 

 in the parifh of Kirkpatrick^ about five miles 

 , from Moffat. .Dr. Biirgefs. 



The leaves are laciniated, obtufely lobcd and im- 

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

 eladic lubftance,' like cork or leather, havino- 

 inumerabk blue, fpongy hairs on the under 

 fide, which frequently extend beyond the extre- 

 mities of the leaves, and elevate them as it vv-cie 

 upon a cufliion. 



The fhields are of a brownifii red colour, fmall, 

 numerous, and crowded, their margins of the 

 colour of the leaves, and crenared when old. 



Some fpecimens, befides the fliields, have clufiers 

 of farinaceous povv'der on the edges of the 

 leaves. 



This Lichen is generally two or three inches, but 

 ■ ' ' fometimes even eight or nme inches broad. 



The 



