858 



MANUAL OF DETERMINATIVE BACTERIOLOGY 



G. Chromatium cucuUiferum Gickl- 

 horn. (Cent. f. Bakt., II Abt., 50, 1920, 

 419.) From Latin cucullus, cap or hood 

 and fero, to bear. 



Cells : 4 by 6 to 8 microns (Gicklhorn) ; 

 according to Bavendamm (Schwefelbak- 

 terien, Jena, 1924, 127) identical with 

 Chromatiuvi warmingii forma minus. 

 Gicklhorn claims this organism to be 

 colorless, which appears very doubtful. 



Source: From the pond in the Annen 

 Castle Park, Graz, Austria. 



Habitat: Fresh water ponds. 



Illustration: Gicklhorn, loc. cit., fig. 2. 



7. Chromatium minus Winogradsky. 

 (Winogradsky, Schwefelbacterien, Leip- 

 zig, 1888, 99; Bacillus minor Trevisan, 

 I generi e le specie delle Batteriacee, 

 1889, 18; Bacterium minus DeToni and 

 Trevisan, in Saccardo, Sylloge Fungo- 

 rum, 8, 1889, 1027.) From Latin tninus, 

 small. 



Cells: 3 by 3.5 to 7 microns (Winograd- 

 sky); also 1.7 to 3 microns in width and 

 up to 8.5 microns in length (Issatchenko, 

 Borodin Jubilee Volume, 1929?, 9); all 

 transitions to Chromatium iveissei from 

 which it cannot bo distinguished (Strzes- 

 zewski, Bull. Acad. Sci., Cracovie, S6r. 

 B, 1913, 321). 



Illustrations: Winogradskj^ loc. cit., 

 PI. IV, fig. 5; Miyoshi. Jour. Coll. Sci., 

 Imp. Univ., Tokyo, Japan, 10, 1897, PI. 

 XIV, fig. 16; Issatchenko, Recherches 

 sur les microbes de I'ocdan glacial arc- 

 tique, Petrograd, 1914, PI. II, fig. 10-11. 



8. Chromatium vinosum (Ehrenberg) 

 Winogradsk3^ {Monas vinosa Ehren- 

 berg, Die Infusionstierchen, Leipzig, 

 1838, 11; Winogradsky, Schwefelbac- 

 terien, Leipzig, 1888, 99; Bacillus 

 vinosus Trevisan, I generi e le specie delle 

 Batteriacee, 1889, 18; Bacterium vino- 

 sum DeToni and Trevisan, in Saccardo, 

 Sylloge Fungorum, 8, 1889, 1027.) From 

 Latin vinosus, pertaining to wine, wine- 

 colored. 



Cells: 2 by 2.5 to 5 microns; also 1.4 to 

 3 by 1.5 to 5 microns (Jimbo, Botan. 

 Magaz. Tokyo, 51, 1937, 872); 1.7 to 2 by 

 2 to 9 microns (Issatchenko, Borodin 

 Jubilee Volume, 1929?, 9); or 1 to 1.3 mi- 

 crons by 2.5 to 3 microns (Schrammeck, 

 Beitr. Biol. d. Pflanzen, 3S, 1935, 317). 

 Jimbo considers Thioderma roseu7n Mi- 

 yoshi to be identical with Chromatium 

 vinosum. 



Illustrations: Winogradsky, loc. cit., 

 PI. IV, 6-7; Miyoshi, Jour. Coll. Sci., 

 Imp. Univ. Tokyo, Japan, 10, 1897, PI. 

 XIV, fig. 17; Nadson, Bull. Jard. Imp. 

 Botan., St. P^tersbourg, 12, 1912, PL 

 III, fig. 1-2. 



9. Chromatixun violaceum Perty. 

 (Zur Kenntniss kleinster Lebensformen, 

 Bern, 1852, 174.) From Latin violaceus, 

 violet-colored. 



Cells: About 2 by 2 to 3 microns. Ac- 

 cording to Cohn (Beitr. Biol. Pfi., 1, 

 Heft 3, 1875, 166) probably identical with 

 Chromatiimi vinosum. Apparently in- 

 cludes various sizes. 



10. Chromatium molischii (Bersa) 

 comb. nov. {Pscudomonas molischii Bersa, 

 Planta, 2, 1926, 375.) Named for the 

 Austrian botanist, H. Molisch. 



Cells: About 2 by 2.5 to 8 microns. 

 Supposedly contains calcium carbonate 

 as inclusions. 



Illustration: Bersa, loc. cit., 376, fig. 3. 



11 . Chromatium gracile Strzeszewski. 

 (Bull. Acad. Sci., Cracovie, S6r. B, 1913, 

 321.) From Latin gracilis, slender. 



(^ells: 1 to 1.3 by 2 to 6 microns; also 

 to 1.5 micron in width (Issatchenko, 

 E tudes microbiologiques des Lacs de 

 Boue, Leningrad, 1927, 114). 



Illustration: Strzeszewski, loc. cit., 

 PI. XXXIX, fig. 1-2; Tokuda, Botan. 

 Magaz., Tokyo, 50, 1936, 339, fig. 1-23. 



12. Chromatium minutissimum Wino- 

 gradsky. (Winogradsky, Schwefelbac- 



