FAMILY BACILLACEAE 



801 



Chester, Man. Determ. Bact., 1901, 304; 

 Plectridium pseudotetanicum Pr^vot, 

 Ann. Inst. Past., 61, 1938, 87; Plec- 

 tridium pseudo-tetanicurn Pr^vot, Man. d. 

 Class., etc., 1940, 158) ; possibly identical 

 with Bacillus fragilis Veillon and Zuber, 

 Arch. d. M^d. Expt. et d'Anat. Path., 

 10, 1898, 536 and Bacillus ramosus Veil- 

 lon and Zuber, ibid., 537. 



Rods: Slender, with rounded ends, oc- 

 curring singly and in pairs, not in chains. 

 Motile with peritrichous flagella. Spores 

 spherical, or nearly so, terminal, swelling 

 rods. Gram -positive. 



Gelatin : Not liquefied. Gelatin is 

 liquefied (Hall, Jour. Inf. Dis., 30, 1922, 

 501). 



Agar surface colonies (anaerobic): 

 Small, flat, irregularly circular, translu- 

 cent, crenated. 



Deep agar colonies: Small, opaque, 

 irregular; not woolly or branched. 



Agar slant (anaerobic) : Grayish, trans- 

 lucent growth. 



Broth: Turbid. 



Litmus milk : Unchanged ; or occasional 

 slight reduction of litmus. 



Acid and gas from glucose and maltose. 

 Fructose, galactose, lactose, sucrose, sali- 

 cin, inulin, mannitol and glycerol not 

 fermented. 



Coagulated albumin not liquefied. 



Blood serum not liquefied. 



Brain medium not blackened or di- 

 gested. 



Egg -meat medium : Slight gas formation 

 in 48 hours. White crj^stals are depos- 

 ited. 



Non-pathogenic for guinea pig and 

 rabbit. 



Grows at 30°C and 37°C. 



Anaerobic . 



Source : Frqm war wounds and from 

 soil. 



Habitat : Not determined other than 

 these sources. Probably rather common 

 in soil. 



44. Clostridiixm alcaligenes Bergey et 

 al. {Bacillus anaerobicus alcaligenes 

 Debono, Cent. f. Bakt., I Abt., Orig., 62, 



1912, 232; Bergey et al.. Manual, 1st ed., 

 1923, 331 ; Palmula alcaligenes Pr^vot, 

 Ann. Inst. Past., 61, 1938, 89; Actiformis 

 alcaligenes Pr^vot, Man. d. Class., etc., 

 1940, 165.) From French alcali, alkali 

 and Latin suffi.x, producing. 



Rods : Long, slender, occurring singly, 

 in pairs and in short chains. Non-motile. 

 Spores spherical, terminal, swelling rods. 

 Gram -positive. 



Gelatin: Not liquefied. 



Deep glucose agar colonies : Lenticular 

 to irregular, or spherical, white, granular, 

 entire. 



Broth : Uniform turbidity. Fecal odor. 



IMilk: Alkaline; casein slowly precipi- 

 tated, with yellowish supernatant fluid. 



Indole is formed in abundance. 



Acid and gas from glucose and lactose. 

 Sucrose and dulcitol not fermented. 

 Cultures have odor of valerianic acid. 



Grows at 22°C and at 37°C. 



Anaerobic. 



Source : From human feces. 



Habitat : Not determined, other than 

 this source. 



45. Clostridium angulosum (Distaso) 

 Hauduroy et al. (Bacillus angulosus 

 Distaso, Cent. f. Bakt., I Abt., Orig., 62, 

 1912, 439; not Bacillus angulosus Garnier 

 and Simon, Bull, et Mem. Soc. Mdd. Hop. 

 Paris, 2^, 1907, 1034; Bacteroides angulo- 

 sus Bergey et al., Manual, 1st ed., 1923, 

 260; Hauduroy et al.. Diet, des Bact. 

 Path., 1937, 91.) From Latin angulosus, 

 having angles, hooked. 



Rods : Short, thick, with rounded ends, 

 occurring singly and in pairs. Long rods 

 sometimes bent to form an obtuse angle. 

 Encapsulated. Non -motile. Spores 

 verj' small, spherical, terminal, slightly 

 swelling rods. Gram stain not recorded. 



Plain gelatin : No growth at 20°C or at 

 37°C. 



Glucose gelatin : Grows well at 37°C. 

 Growth cloudy at first, then clears and 

 liquefies, with whitish, powdery precipi- 

 tate. 



Glucose agar deep colonies : Large, 



