110 ACTINOMYCETES 



124. Streptomyces loidensis (Millard and Burr) comb. nov. (Millard, 

 W. A., and Burr, S., Ann. Appl. Biol., IS, 1926, 580.) 



Aerial mycelium: Spores cylindrical to spherical, 0.9-1.0 by 0.9-0.95 /x. 



Synthetic sucrose agar: Growth thin, flat, gray to yellowish olive. Aerial 

 mycelium scant, olive-colored. Soluble pigment yellow. 



Synthetic glucose agar : Growth thin, grayish olive. Aerial mycelium olive- 

 buff. Soluble pigment light golden to yellowish. 



Nutrient potato agar: Growth good, gray; aerial mycelium olive-buff. 

 Soluble pigment golden brown. 



Gelatin: Growth gray, with scant white aerial mycelium. Liquefaction 

 rapid. Soluble pigment yellow. 



Milk: Surface growth excellent, covered with white aerial mycelium. 

 Coagulation; peptonization rapid. 



Starch: Hydrolysis. 



Glucose broth: Growth on surface and at bottom, good, gray to golden 

 brown. Aerial mycelium olive-buff. Soluble pigment golden brown. 



Nitrate: No reduction. 



Glycerol synthetic solution: Growth flaky; mostly at bottom. Aerial 

 mycelium scant, buff-colored. 



Tyrosinase reaction: Negative. 



Temperature: Grows well at 37.5°C. 



Habitat: Potato scab. 



125. Streptomyces wedmorensis (Millard and Burr) comb. nov. (Mil- 

 lard, W. A., and Burr, S., Ann. Appl. Biol., 13, 1926, 580.) 



Aerial mycelium : Sporophores simple straight, branched, closely septated. 

 Spores oval to cylindrical, 0.8-0.9 by 0.6-0.8 /x- 



Synthetic sucrose agar: Growth flat, thin, grayish, covered with white 

 to gray aerial mycelium. 



Synthetic glucose agar: Growth good, grayish, with crater-like dark spots. 

 Aerial mycelium fair, gray. 



Nutrient potato agar: Growth wrinkled, good, grayish. No aerial myce- 

 lium. 



Potato: Growth wrinkled, grayish, covered with white aerial mycelium. 

 Plug pigmented drab. 



Gelatin: Growth fair. No aerial mycelium. Liquefaction medium. 



Milk: Surface growth greenish. Coagulation ; peptonization slow. 



Starch: Hydrolysis. 



Glucose broth: Small flakes and minute colonies at bottom and at sur- 

 face. 



Nitrate: Reduction. 



Glycerol synthetic solution : Good growth in form of spongy masses at 



