VEGETA TIVE KEPROD UCTION. 



219 



The body of the fructification is made up of hyphfe, more 

 or less interlaced and adlierent, and is of a form adapted, not 

 only to break through tlie substratum, but also to furnish an 

 extensive surface for the spore-beds, called in these plants the 

 hymenium (fig. 213). The hymenium consists of the enlarged 



Fig. 215. — A fructification of CLjr'aria 

 iinrca. The hymenium co\-ers the 

 upper pirt of the branches. Natural 

 size. — After Rerner, 



Fig. : 



Fig. 216, — A fructification of a musliroom. Amanita plialU^itics. />, the cap or pilaus ; 

 7', the veil, originally connected with edge of cap, co\'ering the gills which radiate from 

 the stipe, st, to the edge of cap ; r-c, the volva. The surface of the gills is co\'ered 

 with the hymenium. Most mushrooms showing a distinct volva are poisonous. 

 Natural size. — After Kemer. 



free ends of the hyphse, which are set at right angles to the 

 surface. Some, the basidia, develop 2-8 slender branches 

 each of which produces at the tip a single spore. The hyme- 

 nium may be formed upon the outer surface of the fructifica- 

 tion or in internal chambers (fig. 214). In the latter case 



