Ill I 



THK ACTINOMYCETKS, Vol. II 



d. Aerial mycelium pale vinaceous. 



161. Streptomyces netropsis 



3. Sporophores straight or spiral-shaped. 



207. Streptomyces reticuli 



4. Verticils on secondary branches; 

 growth yellowish-red to pink. 



a. Spirals produced. 



218. Streptomyces rub r in - 

 ticuli 



b. No spirals formed. 



184. Streptomyces pentati 

 cus 



5. Verticils on primary and secondary 

 branches. 



a. Growth yellow to brown. 



a 1 . Aerial mycelium grayish-white. 

 130. Streptomyces kitasa- 

 toensis 



I) 1 . Growth brown to olive-dial). 



176. Streptomyces olivore- 

 ticuli 



b. Growth pink. 



120. Streptomyces hiroshi- 

 mensis 



c. Growth red to reddish-brown. 



214. Streptomyces roseover- 

 ticillatus 

 6. Sporophores may also form tufts. 



a. Aerial mycelium greenish-yellow, 

 turning gray. 



247. Streptomyces viridofla 

 vus 



b. Aerial mycelium white. 



229. Streptomyces spirover 

 ticillatus 



