USTILAGINALES 



613 



in the Auriculariales, which is expressed provisionally in the following 

 scheme : 



UREDINALES 



PUCCINIACEAE 



\ CRONARTIACEAE 



MELAMPSORACEAE 



COLEOSPORIACEAE 



Coleosporium 



Goplana 



Gallowaya 



GRAPHIOLACEAE 



Shropshiria? 



Graphiola 



USTILAGINALES 



USTILAGINACEAE TILLETIACEAE 



Testicularia 



Tolyposgorium 



Cintractia 



Sphacelotheca 



Ustilago 



AURICULARIALES 

 SEPTOBASIDIACEAE AURICULARIACEAE 



Septobasidium 

 Saccoblastia 

 Cystobasidium 

 Iola 



Aurieularia 



Eocronartium 



Platygloea 



Tuburcinia 



Thecaphora 



Doassansia 



Entyloma 



Neovossia 



Tilletia 



PHLEOGENACEAE 



Phleogena 

 Hoehneliomyces 

 Pilacrella 

 Stilbum 



Diagram XLII. 



In regard to their life cycle, one should consider Ustilago Zeae and 

 Doassansia Sagittariae as ancestral among the reduced forms and Ustilago 

 violacea and Tilletia Tritici, further differentiated. 



