42 Synopsis of the Bacteria and Yeast Fungi. 



variously bent and intertwined, surrounded by gelatine, 

 which forms spheroidal masses of 1017 /x (or more) in 

 diameter. Multiplication by constriction and bipartition 

 of these gelatinous masses. 



60. M. gregarium, Cohn (I.e.}. 



Gelatinous masses floating on the surface of putrid 

 water, singly or heaped into little slimy drops ; exterior 

 boundary sharply denned. (Fig. 37.) 



On water in which Algae were decaying. 



Fig. 37. Myconostoc gregarium. a, gelatinous spheroids, 

 containing the threads ; b, a spheroid in the act of 

 division ; c, the threads separated ; d, the threads break- 

 ing up into ring-shaped pieces (after Cohn). 



[This species was recorded by Professor Lankester as a phase of 

 Spirillum Undula (Quart. Jour. Micr. Set., xiii. 424), but as no genetic 

 connection between the two has yet been traced, Cohn thinks it better, 

 at present, to keep it distinct. It derives its name from its resemblance 

 to Nostoc among the Algae. (Fig. 38.) TR.] 



Fig. 38. Myconostoc gregarium, X 1500 (after Lankester, 

 who considers it a zoogloea form of Spirillum Undula). 



