C^YPTOGAMIA ALGJE, . 837 



Common yellow Tree Lichen. Anglis. 



Upon the trunks and branches of elms, and many 

 other trees, common, Linnaus fays it is very 

 frequent on the Juniper. 



The only Lichens that have any refemblancc with 

 this, are the L. £andclarius, and the L. faruti- 

 J7US, with the lalt pf which it jeems to have 

 been confounded by fome authors. The L. 

 candelarius has either a farinaceous or a wrinkled 

 cruft for its ground, according to its fex. The 

 L. parietinus is compofed of a thin cruft of clofe 

 imbricated leaves. This has lax elevated leaves, 

 of a grecnifh yellow colour, curled and lacini- 

 ated on the edges. The fhields are either of a 

 -greenilh-yellow, or an olive colour. 

 The Gotland-Swedes dye their yarn of a yellow co- 

 lour with it, and give it as a fpecific in the 

 Jaundice. 



L. pallide viridis r^ugofus margioe undulatus. Sp, 

 jyi. 1654. {Moris, hiji. 3. p. 633./ 15./. 7. /. i. 

 fine fcutellis. Dillen. mufc. t. 25. /. 97. Michel, 

 gen t.^Z,f. I.) 



Sulphur-green Rofe Lichen. Anglis,- 



Upon trunks of trees and rocks frequent. 



The leaves generally grow in a flat rofaceous circle, 

 from an inch even to a foot in diameter, greatly 

 wrinkled and plaited in .the -centre, and divided 

 into obtufe .crenated Jobes at the extremities, of 

 a fulphur fea-grccn colour, their under fide 



Imooth 



