138 RELATIONSHIPS OF THE COCCACE^ 



On media not containing sugar, produces faint translucent 

 colonies; on media containing saccharose, forms large, lobed 

 masses of zooglaea. Produces acid in dextrose, lactose, 

 saccharose, and dextrin. Develops best between 30 and 

 37 degrees. In zooglcea stage highly resistant to dry heat. 

 It is possible that other imperfectly described organisms, 

 which produce slimy fermentations in wine and milk, 

 may belong to the genus Ascococcus. Leucocystis cellaris, 

 Schroter, and the closely related Leuconostoc Lagerheimii, 

 isolated by Ludwig (Migula, 1900) from decayed wood, 

 may be distinct species. It is likely that intermediate forms 

 will be found between A sc. mesenteroides andD.involutus; 

 and the relations of these two types can only be definitely 

 settled by comparative study. M. mucilaginosus of 

 Migula, a slowly liquefying form, is a peculiar organism, 

 allied to one or the other of them. 



