40 



BACTERIA AND SOIL FERTILITY 



Order 



Myxobacteriales 



Thiobacteriales 



Chlamydo- 

 bacteriales 



Actinomycetales 



Eub acted ales 



SCHIZ0MYCETE5 



Family Tribe 



Genus 



Actinomycetacea 



Mycobacteriaceae 



Nitrobacteriaceae . 



Nitrobactereae ' 



Actinobacillus 

 Leptotrichia 

 Actinomyces 

 Erysipelothrix 



Mycobacterium 

 Corynebacterium 

 Fusiformis 

 Pfeifferella 



Hydrogenomonas 



Methanomonas 



Carboxydomonas 



Acetobacter 



Nitrosomonas 



Nitrobacter 



Pseudomonadaceae 

 Spirillaceae 



, . /Azotobact^r 



Azotobactereae \ Rhizobium 



\ Pseudomonas 



/ Vibrio 

 I Spirillum 



Coccaceae 



< Neissereae 



Streptococceae 



Micrococceae 



< Neisseria 



Diplococcus 

 Leuconostoc 

 Streptococcus 

 Staphylococcus 



Micrococcus 



Sarcina 



Rhodococcus 



