PLATE XV. 



TRICHOGASTRES. 



FIG. 



1. Bovista plumbea, 



(natural size; section and miKjnified spores.) 



2. Lycoperdon pyriforme, 



{reduced; n-ith section.) 



3. Cenococcum geophilum, 

 (natural size, and section.) 



4. Scleroderma vulgare, 



{with section and inngn'Jied sjiorc.) 



5. Polysaccum olivaccum. 



