Page:Bergey's manual of determinative bacteriology.djvu/663

 ee. Milk not fermented stormily. f. Slow, spongy coagulation of milk. Clot slowlj^ digested. 72. Clostridium chromogenes. ff. Milk coagulated rapidly. Clot not digested. 73. Clostridium corallinum. dd. Pink to orange-red pigment produced in maize mash. Nitrites not produced from nitrates. 74. Clostridium aurantibutyricum. cc. Yellowish pigments produced. d. Yellow-orange pigment produced in various media. Indole not produced. Milk actively coagulated but not stormily. Clot not digested. 75. Clostridium Jelsineum. dd. Canary-yellow pigment produced in various media. 76. Clostridium flavum. aa. Terminal spores. b. Ovoid spores. c. Non-motile. Gelatin and/or glucose-gelatin not liquefied. Deep red pigment produced on potato slants. 77. Clostridium carbonei. cc. Motile. 78. Clostridium haumanii. bb. Spherical spores. Produces a soluble, green pigment. 79. Clostridium virens. B. Cellulose typically fermented. Terminal spores. Rods distinctly swollen at sporula- tion. 1. Distinctive pigments not characteristically produced. a. Distinctly ovoid to ellipsoid spores, b. Motile. c. A variety of carbohydrates, other than cellulose, are fermented after prolonged incubation. 80. Clostridium spumarum. cc. Carbohydrates, other than cellulose, not fermented. 81. Clostridium werneri. bb. Non-motile. 82. Clostridium leptinotarsae. aa. Spores spherical, or nearly so. b. Non-motile. Glucose not fermented. 83. Clostridium cellulosolvens. bb. Motile. c. Glucose fermented. 84. Clostridium cellobioparum. cc. Glucose not fermented. 85. Clostridium omelianskii. 2. Distinctive pigments characteristically produced in certain media. a. Distinctlj^ ovoid to ellipsoid spores, b. Non-motile. 86. Clostridium dissolvens. bb. Motile. 87. Clostridium^ thermocellum. aa. Spores spherical, or nearly so. Thermophilic. Glucose fermented. 88. Clostridium, thermocellulaseum.