THE GENUS CONIOTHECII'M. 



655 



In the greyish growth on sterilised apple-twig", large globular 

 intercalary cells, somewhat lighter than typical Coniofhcciiiui, 

 were observed, and similar cells formed on beerwort gelatine 

 (PI. 34, d). On the latter there were also packets of typica' 

 Coniotlicciitm spores, and the conclusion is arrived at that thvy 

 result 1)y walls forming in the above cells. 



The formation of conidial masses {Coiiiotlicciitin ) where 

 hyphas cross or touch have frequently been observed, and is in 

 agreement with the observation of Gueguen on the formation of 

 these bodies. 



Clamp connections between individual cells are fre(]uently 

 present (Fig. i), but in no cultures have T observed anything 

 reseml)ling the brush-like structures of Gueguen, though sim])le 

 coremations (PI. 33, r), such as represented in Gtieguen's Fig. 

 14. are present. 



lUuls on the mycelium, as figured by Gueguen, frecjuently 

 form, and are usually more or less rounded (PI. 34, d), and never 

 fusiform or elongated. Attempts were not made to germinate 



Fig. 2. 



these buds, which at times are borne on a short stalk. These buds 

 ap])ear to become detached after they have increased considerably 

 in size. 



riv]:)ha? which enrol themselves were present, but were not 

 observed in sufficient numbers to arrive at any conclusion. The 

 enrolling observed ( h^ig. 2 ) appears to have much in common 

 with the enrolling of the nodular swellings mentioned by Gueguen, 

 though there is also evidence of the enrolling of hyphse directly 

 (Fig^ 2). While the exact nature and object of this phenomenon 

 is not known, it may be mentioned that they do not appear to 

 have anything to do with the formation of the Phonia pycnidia. 



