GENERAL SYSTEMATIC BACTERIOLOGY 417 



Sollied (1903, p. 491) described another species P. hennebergi from 

 beer. 



Klocker (1903, p. 331) ascribes the genus to Francke and states 

 "The cells are arranged in flat colonies, they divide along two planes." 



Erwin F. Smith (1905, p. 162) placed this name among the rejected 

 genera. Vuillemin (1913, p. 520) dismisses Pediococcus as an invalid 

 synonym of M crista Van Tieghem (1883). 



If the cocci which are arranged in tetrads are to receive generic 

 recognition, the name Pediococcus would appear to be valid. If not, 

 this becomes a synonym, perhaps of Micrococcus. The type species 

 is Pediococcus cerevisiae Balcke. 



Pediokokkus. A variant of Pediococcus (q.v.) used by Eisenberg 

 (1891) and other German writers. 



Pedioplana. A generic name proposed by Wolff (1907, p. 9) for 

 the species P. haeckeU. The genus corresponds to Pediococcus except 

 that the cells are motile by means of flagella. The name has apparently 

 not been used by other investigators. It may be regarded as a synonym 

 of Pediococcus. 



Pelochromatium. A generic name proposed by Lauterborn (1913, 

 p. 99) for an organism morphologically resembling Chlorochromatium 

 but containing bacteriopurpurin. Included in his family Rhodobak- 

 teriaceae. The only (type) species is Pelochromatium roseum Lauter- 

 born. 



Pelodictyon. A generic name proposed by Lauterborn (1913, p. 

 98) for a genus of his family Chlorobakteriaceae containing organisms 

 with elongate cells 2 to 3// long, yellowish-green in color, and united 

 into a net in a fashion similar to Thiodictyon Winogradsky. The 

 single species (type) named was Pelodictyon clathratiforme {Aphano- 

 thece clathratiformis) (Szafer) Lauterborn. The inclusion of this genus 

 among the bacteria rather than the blue-green algae is questionable. 



Pelogloea. A generic name proposed by Lauterborn (1913, p. 99) 

 for a genus of his family Chlorobakteriaceae with the following de- 

 scription. 



Pelogloea chlorina nov. gen. nov. spec. Zellen 0,003 bis 0,004 mm. lang. ketten- 

 artig zu (fast Nostocartigen) locker gewundenen Faden zusammenschliessend und 

 in eine gemeinsame Gallertmasse eingebettet. Kolonien bis 1 mm im Durch- 

 messer. 



The inclusion of this form among the bacteria is questionable. 



