Gram+RodCat+

Catalase Positive Gram Positive Rods
The genera Bacillus and Corynebacterium are found with these properties. The full list being Corynebacterium xerosis, Bacillus cereus, Bacillus subtilis, Bacillus brevis, and Bacillus megaterium.

Tests
Essential: PR Glucose, PR Lactose, PR Sucrose, Citrate

Helpful: Thiogel, MR-VP

Key
1-A: PR sugars are negative Corynebacterium xerosis

1-B: PR Glucose is positive GO TO 2

2-A: Organism is PR Sucrose negative and VP positive  Bacillus brevis

2-B: Organism is PR Sucrose positive GO TO 3

3-A: Organism is PR Lactose positive and VP negative. Bacillus megaterium

3-B: Organism is PR Lactose negative GO TO 4

4-A: Organism is Citrate positive. Bacillus subtilis

4-B: Organism is Citrate negative. Bacillus cereus