THE CLASSIFICATION OF BACTERIA 267 



XX Milk coagulated. 



178. B. liodermos FlUgge. 



ft Agar smear cultures yellowish-brownish, wrinkled. 



179. B. mesentericus Trevisan. 



180. B. lactis No. 4 Flugge. 



tff Agar smear cultures smooth or scarcely wrinkled. 



181. B. tenuis Trevisan. 



tttt Agar smear cultures not described ; broad bacilli up to 

 1.7 microns. 



182. B. tumescetts Zopf. 

 ** Gelatin liquefied slowly. 



t Gas produced in saccharose bouillon. 



183. B. gummosus Happ. 



ft No gas produced in saccharose bouillon. 



184. B. st ellat us. 



185. B. ere worts. 



b. Color of potato cultures becoming eventually brownish. 



* Gelatin colonies round, without radiations, 

 f Reduce nitrates to nitrites. 



186. B. denitrificans Schirokikh. 

 ft Do not reduce nitrates to nitrites. 



187. B. detrtidens Wright. 



188. B. maidis Paltauf-Heider. 



** Gelatin colonies proteus-like or with outgrowths. 



1 89. B. plicatus. 



190. B. gangrcence Arkovy. 

 *** Gelatin colonies filamentous floccose. 



191. B. aromaticus. 

 **** Gelatin colonies not described. 



192. B. magnus. 



193. B. Hueppei Trev. 



Potato cultures not becoming crumpled. B. Subtilis Group. 

 a. Potato cultures becoming dry, mealy. 



* Potato cultures whitish -gray. 



194. B. subtilis (Ehrenberg) Cohn. 



195. B. lactis-albus Sternberg. 



196. B. leptosporus Klein. 

 ** Potato cultures yellowish. 



