no Covered Sniint of Barley. 



as in other species. Along with the single promycelium arising from the 

 spore, there might be given off at another part a large oval unicellular body 

 behaving like a conidium. The conidia which are elongated ellipsoid, readily 

 fall away when they multiply independently by budding. 



In a hay infusion the promycelia branched copiously. Slender elongated 

 branches were given off, and sometimes on a level with the septum where a 

 knee-joint might have been, there were long jointed hyphae. Brefeld has 

 shown that the conidia multiply in a yeast-like manner and form sprouting 

 conidia, which continue to develop as long as nutritive material is supplied. 



Infection. 



This occurs, in all probability, in the seedling stage, as indicated by the 

 certain treatment of the seed and the formation of sprouting conidia in order 

 to tide the fungus over from one season to another. The spores are very 

 commonly found on samples of barley, so that they must reach the sound 

 grain during thrashing. 



i 



