42 MUSHROOMS. 



Section 1. WHITE SPORES, OK LEUOOSPOK^ffi. 

 The first genus we will mention is : 



HYGBOFEOBUS, from a word meaning moist. 



This genus contains plants growing on the 

 ground. They soon decay. The cap is sticky 

 or watery, the gills often branched. It has a 

 peculiarity in the fact that the hymenial cells, 

 or the layer of mother cells, contained in the 

 gills, change into a waxy mass, at length re- 

 movable from the trama. The trama is that 

 substance which extends with and is like in 

 structure to the layer of mother cells.-^ It lies 

 between the two layers of gills in Agarics. 

 The gills seem full of watery juice, and they are 

 more or less decurrent, *. e., extend down the 

 stem. This genus contains many bright- 

 colored and shining species. 



We are obliged to refer to the hymenial layer 

 in this place, though the beginner will scarcely 

 understand the meaning of the term. The dis- 

 tinguishing peculiarity of this genus consists 

 in the cells changing to a waxy mass. In the 

 chapter on the structure of mushrooms we have 



' In the young plant it forms the framework of the gills. 



