ALCOHOLIC FERMENTS. 



151 



FIG. 43. Saccharornycetes with ascospores (after HANSEN) : 1, Sacch. cerevisiaj I.; 

 2, Sacch. Pastorianus I.; 3, Sacch. Past. II.; 4, Sacch. Past. III.; 5, Sacch. ellipsoideus 

 I.; 6, Sacch. ellipa. II.; a, cells with partition -wall formation ; b, cells containing 

 larger number of spores than usual ; c, cells showing distinct rudiments of spores. 



