-14- 



might find a place either under Scleritinia cinerea or Sclerotinia laxa 

 as given by Aderhold and Ruhland. 



Mathney gives the color of the conidia of Sclerotinia fructigena 

 as yellowish; of Sclerctinia cinerea as ash-gray. 



c. In California 



In California the brown rot fungus is called Sclerotinia f rue tiff ena. 

 A strain, which ie apparently typical of the California form ie discussed 

 more in detail under Experimental, 



d. General Summary 



I. There are three early virginal descriptions of fungi, all of 

 v-hich have fim lly been put into the genus Sclerotinia. which attack the 

 common domesticated fruits. Vague though these descriptions be, Per soon, 

 describing Torula fructir.era in 1796, Ehrenberg describing Gideua Itocua 

 in 1518, and Bonorden describing Monilia cinerea in 1851 all seen to be 

 describing different fungi* 



II. That there are more than theoo forms of Sclerotinia. or Monilia 

 as he calls them, that attack the comon domesticated fruits is demonstrated 

 by vcrntid. He distinguishes four kinds. The only form he calls definitely 

 by name is Sclerotinia fructigena* 



III. There is greet need for exact systematic work witfc standardized 

 methods in order to determine the number of species of fruit rot Sclerotinias. 



III. Experimental 



a. Introductory - Obtaining of the various strains used in culture 

 and inoculation work. 



