8*4 CRYPTOGAMJA ALGM. 



Jidlapis 36 L, imbricatus, foliolis oblongis laciniatls anguftis, 

 cinereis, fcutpllis pullis, S-p. pi. 16 11. {Michel 

 gen. i. 43. ord, 2^. f. 2. I>ilUn.p}ufc.t. 24./. yo. 

 A-C. non boie^) 



Starry Lichen, Anglis. 



Upon the bar|w of trees frequent. 



The leaves form a circle an inch or twq in dlame? 

 rer, of a grey glaucoire colour whea frelh, but 

 turning whiter when dry. They extend from 

 the centre to the circumference, gradually ex- 

 panded, and divided into many long, narrow 

 fcgmcntSj imbricated, or lying with their edgfs 

 over another. They adhere clofely to the bark 

 by black |iairs on the under fide. 



Jhc fiiields grow in the middle of the circle^ 

 the largcft in the centre, and gradually diminifh- 

 ing towards the circumference. When youpg 

 they are white or grey, being cpvered with 3 

 thin, inealy pellicle •, but as they enlarge and 

 grow older, the pellicle difappears, and they be- 

 come black, furrounded wi^h a margin of the 

 fa.Tie colour as the leaves. 



Specimens are fometirpes found having warts only 



in the centre of the circle, and no Ihields. 



|S. There is a variety of this Lichen which forms 



larger circles, of four inches or mor^ in di^- 



'" • meter, the leaves rae-coloyr'd \yhen frelh, the 



fegments more rigid, and not fo clofely united 



at the extremities, the Ihields larger, covered at 



,. ._, ' Arft 



