78 PAKASITES BELONGING TO THE GENUS GLOMERELLA. 



Out July 25 seven apples were inoculated by puncture with conidia 

 from a green bean pod. These fruits decayed after a month but no 

 acervuli formed. Cultures made from the decayed spots produced 

 only a sterile mycelium somewhat resembling that of Gloeosporium 

 UndemutManum. Positive identification was impossible without 

 spore formation. 



On October 4 twelve Willow Twig apples were inoculated by punc- 

 ture with conidia from a bean pod. No signs of infection followed. 



On October 6 four Willow Twig apples were inoculated on the 

 surface with conidia from a bean pod. At the end of a month no 

 signs of infection had appeared. The same experiment was repeated 

 November 2 with the same result. 



On October 6 four apples were inoculated by punctures with conidia 

 from a bean pod. No signs of infection had appeared at the end of a 

 month. 



In December three Willow Twig apples were inoculated by punc- 

 ture with conidia from a bean pod. No signs of decay occurred at the 

 end of a month. 



Later, three other mature apples were inoculated by puncture with 

 conidia from culture. No decay followed and no acervuli developed. 

 Twenty-nine other apples were inoculated by puncture with conidia 

 of the bean Glomerella at different times during the season. In no 

 case did decay or development of acervuli follow. In eight other 

 cases also where conidia were applied to the surface of apples no 

 infection occurred. These experiments seem to indicate that the 

 Glomerella on the bean is physiologically different from that on the 

 apple. 



BEAN TO BEAN. 



On June 4 six young pods of wax beans 2 inches long were inocu- 

 lated by applying conidia from a bean pod to the surface. The plants 

 were covered with a bell jar. No signs of infection ever appeared on 

 these pods. 



On June 5 the same experiment was repeated with the same result. 

 The reason for the failure of these inoculations is not clear. 



BEAN TO COTTON. 



On July 16 four young bolls were inoculated by puncture with 

 conidia from a bean pod. Small, dark, sunken areas developed about 

 the point of inoculation in all, the same as with inoculations from 

 cotton to cotton made at the same time. No acervuli appeared except 

 on one of the bolls after removal to a moist chamber. These acervuli 

 may not have arisen from the original inoculation from the bean. 



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