CRYPTOGAMIA ALGJE. S^S 



frGi^ineus^S L. foliaceus ereftus oblongus lanceolatus fublaci- 

 ■niatus lacunofus glabcr, fcutellis fubpeduncula- 

 tis. Sp.pL 1614. {Morii.hijhf 15. /. 7./. _^, 4. 

 'Tournef. Lifiit. 549. t. '^i^ f, A. B. Billen. mufc, 

 Q /. 22. f. 59. opt. Michel. gen. t. 36./. i.hona.') 

 Great long-lcaf'd wrinkled Lichen. Anglis. 

 Upon the trunks and branches of trees, particu- 

 larly of oaks and afties, frequent. 



The leaves of this are from half an inch to ari 

 inch and a half broad, and, in fair fpecimens, 

 f. ur or five inches long, divided into long lan- 

 ceolate fegments, wrinkled and pitted on both 

 fides with oblong deep cavities, of a rigid fub- 

 fiance and glaucous colour. 



It produces plenty of fliields, both in the margins 

 and furface of the leaves, at firft concave, af- 

 terwards krger and flatter, of a pale whitiiii 

 colour, fupported on fnort peduncles, compofeci 

 of the membrane of the leaf a little produced. 



The leaves are fometimes covered with a green fa- 

 rinaceous powder, and are fometimes proliferous, 

 producing cluflers of fmal] young leaves out of 

 their edges. 



L. foliaceus erediufculus lacunofus, fubtus tomen- 

 tofus albus. Sp.pL 1614. (Vail. Paris, t. 20./, 

 II, 12, id 7. Billen, mufc, t. 21. f. ^^ <^34.) 



Gommon ragged hoary Lichen. Auglis, 



H h h ■ Ic 



