ALCOHOLIC FERMENTS. 



173 



SACCHAROMYCES ELLIPSOIDEDS II. HANSEN. 

 (Figs. 45, 46.) 



Usually bottom-fermentation yeast. 



Sedimentary forms grown in wort: mostly oval and round 

 cells ; sausage-shaped cells rare (Fig. 45). 



It was separated from beers which showed yeast-turbidity ; 

 is a species which causes y east-turbidity , and has been shown 

 by Hanserfs experiments to be more dangerous than Sacch. 

 Pastorianus III. 



Ascospore-formation (Fig. 32, 6). 

 At 35 C. no ascospores are developed. 



the first indications are seen after 31 hours. 



4 no ascospores are developed. 

 Size of spores 2 5 n. 



Film-formation : 



At 40 C. no film-formation occurs. 

 36 38 feebly-developed film-specks are 



seen after 8 12 days. 



