-10- 



siies given by Saccardo for fructigena than for cinerea. but the color of 

 the sporee corresponds moro nearly to cinerea than fructigena. 



Worrauld (8) 1917 in studying the classification of Monilias 

 distinguishes four types of lionilia as found on cultivated fruit trees 

 of the genera Fyrus and Frunue. He used prune juice &gar plate 

 cultures, and cultures on steamed potato in Roux* tubes as a basis for his 

 classification, which ie given below. 



Prune juice agar 

 plate cultures 



Cultures on steamed 

 potato in Eoux tubes 



(1) A: 



occurring com- 

 monly on apples 

 and pluias and 

 frequently on 

 sweet cherries 



(2) Bloesoa wilt 

 Monilia of the 



Margin almost entire or 

 lucin.it. ta i no known color* 

 ation; conidia absent 



Margin with deltoid or 

 flaballi form lobes, growth 

 usually arrested about aid- 



Conidial tufts yellow, 

 well -developed at upper 

 end of potato, forming 

 raised zones 



apple, also 



occurring occasion- way between canter and side 



ally on plums of plate, and new outgrowths 



as flabelli-fora lobes develop 

 tsually from the tdnuses; olive 

 green to brown 20113 s appear, 

 the first usually at 0.5 to 1 cm. 

 from the center; conidia absent 



(3) A grey 



Monilia 

 fraqusnt oa 

 plums and 

 sweet ehorrios 



(4). American 



form of 



As above but no brown zones 

 appear 



Margin entire or crenate; 

 canidial tufts numerous, 

 usually in concentric 

 circles; brown colora- 

 tion of the agar absent 

 or appeare as a peripheral 

 band near the edge of the 

 pl&te; growth generally 

 more rapid than in (2) 



tufts grey 

 ore numerous than in (2) 

 often appearing in 

 concentric circles 

 t round point of inocu- 

 lation. 



Conidial tufts grey, 

 almost covering the whol 

 surface in a continuous 

 layer. 



