218 



^lANUAL OF POISONOUS PLANTS 



flhi 





l-ig. 57. Snnil hiioics of various kinds. 1. Tall meadow 

 oat .smut (Ustifago percnmuxs). 2. Timothy smut (U. striae- 

 formis). 3. Rye smut (Urocystis occulta). 4. Clieat smut 

 (.Vstilago bromhora). 5. Foxtail smut ( L'. ncglccta). 6. Mil- 

 It t smut (U. panici miluicei). 7. Sandbur smut (U. Ccsatii). 

 8, 9. Tilletio germinating. 10. Seciindary spores from conid- 

 ia. 11, 12. Urocystis spores germinating. 13, 14. Mycelium 

 of same. h. Suckers or hnuMoria. /;. Ilyphae passing from 

 one lenf to another. 8-14 after Wolff. 



