286 



Transactions Byitish Mycological Society. 



Sprout petiole was found much less satisfactory to keep in 

 Petri dishes than Marrow-stemmed Kale, since it very quickly 

 became attacked by various bacteria and moulds and rotted. 



Series B. Started Dec. 20th. Conidia from sources shown. 

 One inoculation in each case. 



B II. Brussels Sprout ,, „ o 



B 12. Brussels Sprout B. Sprout petiole o 



uninjured surface 



Series C was undertaken to test the viability of the conidia 

 when carried to the third generation on cut surfaces. 



