CRYPTOGAMIA ALGJE. sSy 



Unnaus informs us that tiie-rhendeer wili i<:^.^\ ,,.> 

 on tins as well as the I., ran^ifcrinus. ^' 



io'iferus 



U friiticulofus folidus ia^vis, tuberculis a]obons 

 cavis tcrminalibus. Lin. fyfi.naL edit 13./,. 800 



fjw ^•^- '^2- ^^^ ^^^^- p' 460- 1: ^/..^./?^; 



( Michel gen. /. 39. / 6. Z)///hv. ;;,.v/^,. , ^ . f'^. 

 opt.) ' ^ -^^ ^"■^' 



Round headed Coralline Lichen. Anglis. 



Upon recks both in the Highlands and Lov/Iands 

 frequent. 



_The ftalks grow ''n cluU-ers, and are about an inch 

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

 Imooth and gloffy, of a tough horny fubllance* 

 rigid and brittle when dry, of a grey, ghucous 

 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- 

 trem.ities very fine and numerous. 

 The fructifications grow on the fummits of the 

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

 a fphoerical form, covered with a hard tliick rind 

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

 four parts, and difcovers a black nucleus v/ithin 

 which appears, thro' the microfcope, to confiil 

 of globular grains of pov/der. 

 it is a moft elegant fpecies, and may be difpofed 

 in grotto v/ork, fo a3 to produce a good efrecl. 



