DETERMINATION OF SPECIES. 105 
B. cloacz. 
B. hyalinus. 
B. superficialis, 
B. Colonies yellow. 
B. arborescens. 
C. Colonies red. 
B. prodigiosus. 
B. indicus. 
B. plymouthensis. 
B. rubescens. 
2. Grow on gelatin. Phosphorescent. 
B. phosphorescens. 
B. fischeri. 
B. phosphoricus. 
3. Do not grow on gelatin. 
B. equi. 
3. Genus. Pseudomonas. 
I. Grow on gelatin. 
1. Colonies white. Form no pigment. 
P. litoralis. 
2. Form fluorescent pigment. 
A. Do not liquefy gelatin. 
P. alba. 
P. tenuis. 
P. eisenbergii. 
P. stewarti. 
B. Liquefy gelatin. 
P. zruginosa (B. pyocyaneus). 
P. fluorescens. 
P. minutissima. 
3. Colonies blue or violet. 
P. ianthina. 
