-16- 



In all I poaeessad sixteen strains of Sclerotiniay. The word 

 "strain" ie here used for rant of a better word. 



In no visee em I responsible for any of the following specific 

 names. The cultures were so labeled before Uiey fere sent to Me. Where 

 a strain ie not given a epacific nwae, no aame caae with the culture. In 

 the Cftoe of strains 1,7 and 8 f the California strains, the specific name* 

 are not known. 



Sclarotinia sp. designated as strain 1 was obtained in Hie 

 following manner: 



A ripe but undriad Trench prune was inoculated without sterilizing 

 with spores end probably aiycelium from the surf see of a naturally infected 

 apricot. The spores rhich formed on the French prune were used to make 

 three pcur^d plates of standard mrtri^t egar. From one of these plate* 

 a pure single spore culture was obtained by ccnstaul watching under the 

 raicroecop* and transferring to fresh culture medium. This is the strain 

 the name of which I desire to determine. 



Westerdiljk' f Sclerotinla cinerea designated a* s-faraia was obtained 

 either from cherry or plum in Bollard wid forwarded to me by Dr. Johanna 

 Westcrdijk. In her letter accompanying this culture she says -that this 

 form was obtained frow cherry, but the label on the culture says it wms 

 obtained from plu-o, 



ffesterdijk's Sclerotinia fructit;ena designated as strain 3. was 

 obtained from applt in Holland aad forwarded by Dr. Westerdijk along with 

 etscdn 2. 



