THE TRANSLOCATION OF PROTOPLASM 



141 



Ascophanus carneus served to convince me that the process takes 

 place in this fungus in essentially the same manner as in Fimetaria 

 fimicola and Pyronema confluens. 



A Ciboria on Male Birch Catkins.— Dr. G. R. Bisby and the writer 

 found the stalked apothecia of a species of Ciboria on old fallen male 

 catkins of the Birch (Betula alba var. papyrifera) in woods at 

 Victoria Beach, Lake Winnipeg, on May 8, 1933. Some of the fruit- 

 bodies were photographed next day in my laboratory (Fig. 73), and 

 others were used by Dr. Bisby for inoculating nutrient media with 

 spores and thus obtain- 

 ing pure cultures. Dr. 

 H. H. Whetzel of 

 Cornell University, to 

 whom specimens of the 

 fungus were sent, has 

 informed me that in 

 his opinion the species 

 differs from Sclerotinia 

 (Ciboria ?) betulae which 

 he has found on seeds of 

 the Birch and that, in 



. Fig. 73. — Apothecia of a species of Ciboria growing 



due COUrse, he intends on fallen male Birch catkins. Gathered at 



to describe it as new. J£j£™ * z each ' Lake Winni P e g. Ma y 8 > 19 ^ 



The mycelium turns 



malt -agar black, and several of the fruit -bodies puffed vigorously 

 when being gathered from the ground. 



A hanging drop of nutrient gelatine was inoculated with some 

 mycelium of the Ciboria one afternoon ; and, next morning, it was 

 found that many hyphae had grown out into the drop and that, in 

 some of the hyphae, protoplasmic streaming was clearly visible : 

 the protoplasm was slowly creeping toward the growing points. 



The formation of a new septum as an annular ingrowth from the 

 lateral wall of the terminal cells of certain hyphae was watched. 

 Each septum took about six minutes to form. At first a septum 

 was plane ; but, shortly after it had been formed, doubtless owing 

 to the pressure of the protoplasm in the sub-terminal cell, it bulged 

 forward slightly toward the growing point. The protoplasm could 





