EXPLANATION OF PLATE IX 



BASIDIOMYCETES 



FIG. I. Simblum rubescens (PHALLALES). Expanded form showing 

 the cup-like peridium at the base, and the latticed receptacle at the summit. 

 One-half natural size. (Redrawn from Gerard.) 



FIG. 2. Phallogaster saccatus ( PHALLALES) . just before the rupture of 

 the peridium. FIG. 3. The same ruptured, exposing the gleba (the dark 

 shaded portions) within the peridium. Both somewhat enlarged. FIG. 4. 

 A cluster of basidia, some of them bearing spores. X 800. (All re- 

 drawn from Thaxter. ) 



FIGS. 5, 6, 7. Catastoina circumscissum (LYCOPERDALEs). Natural 

 size. Fig. 5 shows the outer peridium rupturing at the equator ; Fig. 6 

 shows the upper part removed with the inner peridium which opens at 

 a point originally at the bottom of the latter w r ith a single crater ; Fig. 7 

 shows the cup left in the ground after the part shown in Fig. 6 became 

 free. ( Redrawn from Morgan. ) 



(236) 



