CLASSIFICATION OF THE ACTINOMYCETES 33 



d 8 . Causing galls on blueberry plants. 



9. Nocardia vacciniae 

 b 1 . Gelatin liquefied. 



10. Nocardia pulmonalis 



2. Vegetative mycelium hard, yellow, with white aerial mycelium; 

 hyphae divide into chains of acid-fast cocci. 



11. Nocardia paraffinae 



II. Initial mycelium very short, rapidly dividing into rods and cocci. 



1. Slowly growing organisms; cells 0.5 to 0.7 /x in diameter. 



12. Nocardia minima 



2. Rapidly growing organisms; cells 1.0 to 1.2 /x in diameter. 



a. Growth pink. 



a 1 . No cystites (swollen cells) formed. 

 a 2 . No indigotin from indole. 



13. Nocardia corallina 

 b 2 . Indigotin from indole. 



14. Nocardia globerula 

 b 1 . Cystites formed. 



15. Nocardia salmonicolor 



b. Growth coral-red. 



16. Nocardia rubropertincta 



c. Growth dark red. 



17. Nocardia rubra 



d. Growth white. 



a 1 . No aerial mycelium. 



18. Nocardia coeliaca 

 b 1 . Aerial mycelium. 



19. Nocardia transvalensis 



B. Non-acid-fast organisms with weakly refractive cells; no distinct forma- 

 tion of cocci; diastatic. 

 I. Nonproteolytic. 



1. Growth on agar pale cream. 



20. Nocardia mesenterica 



2. Growth on agar whitish. 



21. Nocardia albicans 



3. Growth on agar yellow. 



22. Nocardia flava 



4. Growth on agar green. 



23. Nocardia viridis 



5. Growth on agar yellow-green. 



24. Nocardia citrea 



