FAMILY IV. PSEUDOMOXADACEAE 91 



ee. Grow poorly or not at all at 37°C. 



f. Reaction in milk becomes acid or alkaline, 

 g. Acid reaction produced in milk. 



8. Pseudotnonas fairmontensis . 

 gg. Alkaline reaction produced in milk. 



h. Produces crj'stals of chlororaphine. 



9. Pseudomonas chlororaphis. 

 hh. Chlororaphine not produced. 



i. Indole produced. 



10. Pseudomonas myxogenes. 



11. Pseudomonas schuylkilliensis. 

 ii. Indole not produced. 



j. Produces an intense, diffusible, yel- 

 low to orange pigment in cream or in 

 cream layer of milk. 



12. Pseudomonas sijnxantha. 



jj . Fail to produce diffusible, yellow pig- 

 ment in cream or in cream laj-er of 

 milk, 

 k. Nitrites produced from nitrates. 



13. Pseudomonas fluorescens. 



kk. Nitrites not produced from ni- 

 trates. 



14. Pseudomonas pavonacea. 



15. Pseudomonas geniculata. 



16. Pseudomonas sepiica. 



ii. Reaction in milk unchanged. Becomes blue in asso- 

 ciation with lactic-acid bacteria. 



17. Pseudomonas syncyanea. 

 cc. Non-motile. 



d. Produces iodinin. 



18. Pseudomonas iodinum. 

 dd. Iodinin not produced. 



e. Grows poorly or not at all at 37° C. 



13. Pseudotnonas fluorescens (non- 

 motile variety), 

 ee. Grows readilj' at 37° C. 



19. Pseudomonas smaraydina. 

 bb. Gelatin not liquefied. 



c. Polar flagellate. 



d. Grow readily at 37° C. 



e. Reaction in milk unchanged. 



20. Pseudomonas puiida. 

 ee. Alkaline reaction in milk. 



f. Litmus reduced. 



21. Pseudomonas striata, 

 ii. Litmus not reduced. 



22. Pseudomonas oralis. 

 dd. Grow poorly or not at all at 37° C. 



e. Reaction in milk acid. 



f. Musty odor produced in culture media. 



23. Pseudomonas taetrolens. 



