ANATOMY OF FUNGI 



33 



swells into a more or less globose or slightly lobed body 

 or haustorium, which contains a nucleus. In Erysiphe 



FlG. 8. Phyllactinia suffnlta, a fungus having super- 

 ficial mycelium which grows on the surface of the host- 

 plant, i, a hazel leaf partly covered with the white 

 mycelium of the fungus ; 2, fruit of the fungus furnished 

 with spine-like, projecting appendages ; 3, asci containing 

 spores. All, except fig. i, mag. 



communis and others an ingrowth of the inner wall of the 

 host-plant forms a sheath round the neck of the haustorium 

 for some distance, and the haustorium itself is surrounded 



c 



