WILL'S TORULA 297 



Torula Nos. 3 and 4. Cells spherical (3-4 ju). The giant colonies 

 are thick with a flat edge which is sinuous. It ferments dextrose, 

 levulose, galactose and raffinose. A scum is formed on liquid media, 

 dry and white at first, later changing to a brownish yellow. The tem- 

 perature limits for growth on wort are 0.5 and 33 C. It was found in 

 the air about breweries. 



Torula No. 11. The cells are spherical or ellipsoidal (3-4 /A). 

 A scum is formed in liquid media which is dry and folded. It is of a 

 gray color. The giant colony exists in the form of a flat layer with 

 a united edge. It ferments dextrose, levulose, galactose and sac- 

 charose. The temperature limits for growth on beer wort are 0.5 

 and 33 C. It was isolated from wort. 



Torula No. 17. The cells are spherical and sometimes ellipsoidal. 

 (About 3/x in diameter.) A thin dry scum is formed in liquid media 

 of a flat white or yellow color; it is slightly folded and grips the sides 

 of the culture flask. The giant colonies are round. It ferments dex- 

 trose, levulose, galactose, saccharose, lactose and raffinose. It was 

 isolated from brewing water. 



Torula No. 6. The cells are spherical, sometimes ellipsoidal. They 

 develop in liquid media, especially in the form of a sediment. A very 

 thin scum appears quickly. The giant colonies are like those of 

 Torula No. 2. It ferments dextrose, levulose, galactose, saccharose 

 and maltose. The temperature limits for growth on beer wort are 0.5 

 and 30 C. 



Torula No. 5. The cells are spherical, ellipsoidal or elongated. 

 A scum and ring are formed on liquid media. The scum is colorless, 

 moist and thin. Dextrose, levulose, saccharose, galactose, maltose 

 and raffinose are fermented. The temperature limits for growth are 

 0.5 and 35 C. It was isolated from wort. 



Torula No. 7. The cells are spherical and at the beginning 

 develop at the bottom of the liquid. A ring and a scum are finally 

 formed. The ring is solidly adherent and of a gelatinous consistency. 

 The scum is well developed, mucous and, at first, uncolored. The 

 giant colony is a reddish brown at first, finally a brown. It ferments 

 dextrose, levulose, galactose, saccharose, maltose, lactose, raffinose 

 and arabinose. The temperature limits are 2 C. and 30 C. It was 

 isolated from the air. 



Torula No. 8. The cells are spherical or ellipsoidal, slightly 

 pointed. They become elongated at low temperatures and may reach 

 5/i. In liquid cultures there is feeble development as a sediment 

 but a scum and a mucilaginous ring are formed. The giant colonies 

 are a deep brown. It ferments dextrose, levulose, galactose, maltose, 

 lactose, raffinose and arabinose. The temperature limits are 0.5 and 

 35 C. 



