SKXIAMTV AND A 1. TKllN ATIO.N OK tiKNKHATIONS 



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TEXT- FIG 1 LFE CYCLE OF P BRASSICAE. accokdinc to 

 PROWAZEK. 1905 



TEXT-FIG 2 LIFE CYCLE OF P BRASSICAE. accohoihO to 

 WINGE. 1913. 



uKmcAtere fusion 



/ zrcoTE /woeauLA maturc 



YOUNG smne autupe spots. 



AMOEBA DH/IDING 



VKUOLATE AtlOEBA 



>ew NUCLEI fhom 

 O*>0MIDIA 



P/fCTfiLASUIC BUO nDmNG OUT, 



OflOMIDIA IN OLD PORT/ON 



NUCLEI BREAKING 

 UP INTO OtfOMIDIA 



NUCLEAR BUD DIVIDING. 

 OfKMIDIA IN LCWEP END 



NUCLEAR BUDDING 



tew NUCLEAR BUO 



TEXT-FIG 3 LIFE CrCLE OF P BRASSICAE. according to JONES. 1928. 



