CRYPTOGAMIA ALGiE. 887 



Linnaus informs us that the rhcndeer will feed upr 

 on this as well as the L. rangiferinus. 



%lohiferus L. fruticulofus folidus laevis, tuberculis globofis 



92. cavis terminalibus. Lin. fyft-nat. edit. 13. p. 809. 



Mantifs.p. 13^ Hudf. angl. p. 460. L. globojus. 



(Mchel.gen. t. o,<^. f. 6. ViUen.mufc. t. 17./. 35; 



cpt.j 



Round-headed Coralline Lichen. Jnglis. 



Upon rocks both in the Highlands and Lowlands 

 frequent. 



The (talks grow in clufters, and are about an inch 

 - and a half or two inches high, cylindrical, folid, 

 fmooth and glofly, of a tough horny fubftance, 

 rigid and brittle when dry, of a grey, glaucous 

 colour when young, but of a fandy or fome- 

 what tawny colour when old or dry^ divided 

 into many branches, the divifions at their ex- 

 tremities very fine and numerous. 



The frudifications grow on the fummits of the 

 ftalks, and of the fame colour as the ftalks, of 

 afphoericalform, covered with a hard thick rind 

 or coat, which cracks, when ripe, into three or 

 four parts, and difcovers a black nucleus within, 

 which appears, thro' the microfgopc, to confift 

 of crlobular grains of powder. 



It is a^'moft elegant fpecies, and may be d.^ofed 

 in grotto work, fo as to produce a good effeft. 



