PLATE XXX. 



USTILAGINEI. 



FIG. 



1. Tilletia caries. 



2. Ustilago maydis, 

 (spores magnified.) 



3. Thecapliora byalina. 



■4. Tuburcinia scabies, 



(spores magnified.) , 

 5. Uiocystis occulta. 



C<«;OMACEI. 



0. Melampsora betuliua, 



(winter spores, magnified.) 



7. Melampsora salicina, 

 (u'i)ifc/- spores, magnified.) 



8. Coleosporium tussilagiuis. 



