PLATE XVI. 



MYXOGASTRES. 



FIG. 



1. Lycogala eijidendrum. 



2. Eeticularia umbrina, 



(with •magnified spores.) 



3. ^thalium septicum. 



4. Ptychogaster albus, 

 {icilh magnified spores.) 



5. Diderma vernicosum, 



(cluster iiataral d:x, peridiam magnified.) 



