Photo: F. R. Hinkins & Son. 



A COMMON BRITISH LICHEN (Evernia Prunastri) 



It grows on trees and old palings, and is greenish-grey above, white beneath, with strap-like branched fronds. The fungus 

 partner absorbs the rain-water and may get something in the way of inorganic salts from the surface of its support. 

 The alga partner, which consists of green cells, manufactures carbohydrates. These are utilised by the fungus. 





