82 



PLANT STRUCTURES 



bles an incrustation upon its substratum of rock, soil, etc. ; 

 (2) Foliose Lichens, with flattened, leaf -like, lobed bodies, at- 



PIG. 74. Much enlarged section of a portion of the apothecium of Anaptychla, show- 

 ing the fungus mycelium (m), which is massed above (y), just beneath the layer of 

 asci (1, 2, 8, It), in which spores in various stages of development are shown. 

 After SACHS. 



tached only at the middle or irregularly to the substratum ; 

 (3) Fruticose Lichens, with filamentous bodies branching 

 like shrubs, either erect, pendulous, or prostrate. 



