8 BACTERIACEAE— MYXOBACTERIACEAE 



1. Flagella lacking Spirosoma M. 31 



2. Flagella present 



a. Flagellum i, rarely 2-3, polar Microspira M. 31 



b. Flagella clustered, polar Spirillum 8: 1006 



II. Cells flexible Spirochaete 8: 1006 



Family 4. BACTERIACEAE 



MiGULA 20 



One-celled, cells oblong to cylindric, straight or at least never spirally curved, 

 flagella often present. 



I. Flagella lacking Bacterium 8: 1020 



■II. Flagella present 



1. Flagella peripheral Bacillus 8: 943 



2. Flagella polar Pseudomonas M. 29 



Family 5. COCCACEAE 



MiGULA IS 



One-celled, cells globose, tisuall}' flattened when grouped in rows or masses, 

 flagella usually absent. 



I. Flagella lacking 



1. Fission in one plane, cells in rows Streptococcus 8: 1054 



2. Fission in two planes, cells in plates 



Micrococcus 8: 1076 



3. Fission in three planes, cells in bundles 



Sarcina 8: 1044 



II. Flagella present 



1. Fission in two planes Planococcus M. 19 



2. Fission in three planes Planosarcina M. 20 



Order 2. MYXOBACTRALES 



Cells rod-like, motile, fission in one plane ; cells secreting a gelatinous base and 

 forming pseudoplasmodia, then passing into cysts, or spore-masses which are often 

 stalked (cystophore). 



Family 6. MYXOBACTERIACEAE 



1 1 : 460, T. 389 

 Characters of the order. 



I. Cells always rod-like, distinct cysts present 



1. Cysts free, usually on a cystophore Chondromyces 14:842 



2. Cysts one or more in a gelatinous matrix Myxobacter 14:844 



(Polyangium 7:47) 



II. Cells finally forming rows of globose spores, no definite cysts 



Myxococcus 14: 843 



Class 2. CHLOROPHYCEAE 



Typically one-celled or filamentous plants, for the most part chlorophyllous but 



