174 



Minnesota Plant Diseases. 



which is internally more or less gelatinous and of which the en- 

 tire surface is covered with the palisade of basidia. A large 

 number of the club fungi are edible and furnish many common 

 and abundant forms. (Figs. 10, 81, 83.) 



FIG. 84. The coral fungus a toothed fungus (Hydnum coralloides), on the under side of 



a log. Original. 



Tooth fungi (Hydnacece). The fruiting body of the tooth 

 fungus is in some respects more complex than that of the 

 smooth shelves or clubs. The palisade surface is here distrib- 

 uted over an area covered with teeth which thus increases the 

 spore-bearing surfaces considerably. These teeth may be com- 



