8 MANUAL OF DETERMINATIVE BACTERIOLOGY 



11th Ann. Rept., 1899, 36), or in his complete outhne (Manual Determ. 

 Bact., 1901). Almost all of the generic terms found in his outlines are still 

 in current use. 



The term Aplanohacter suggested by Erwin F. Smith (Bacteria in Rela- 

 tion to Plant Diseases, 1, 1905, 171, Washington) was accepted by certain 

 American phytopathologists for a time but has never come into general use. 



Because other differences between the non-chromogenic and chromogenic 

 micrococci are unimportant, two generic terms, Albococcus and Aurococcus, 

 suggested by the Winslows (Science, 21, 1905, 669; Systematic Relation- 

 ships of the Coccaceae, New York, 1908) have not come into general use. 

 They also suggested Rhodococcus to include Rhodococcus roseus and R.fulvus 

 apparently without realizing that Zopf (Ber. d. deutsch. bot. Gesellsch. 

 Berlin, 9, 1891, 28) had previously used the same term for Rhodococcus 

 erythromyxa and R. rhodochrous. Hansgirg (Engler and Prantl, Die 

 natiirhchen Pflanzenfamilien, 1, la, 1895, 52) had also used it previously 

 to designate a sub-genus of the green algae, and later Alolisch (Die Purpur- 

 bakterien, Jena, 1907, 20) used Rhodococcus for a genus of the purple 

 bacteria to include Rhodococcus capsulatus. 



In his complete outline of the classification of bacteria presented in 1909, 

 Orla-Jensen (Cent. f. Bakt., II Abt., 22, 1909, 305) introduced many new 

 generic terms in an effort to create a nomenclature that appeared to him to 

 express the natural relationships of bacteria more satisfactorily than names 

 previously suggested had done. Thus he used the suffixes coccus and 

 sarcina for spherical bacteria and monas for all genera known to be lopho- 

 trichous or so related to these types that they were regarded as essentially 

 lophotrichous in nature. In the same way the suffix bacterium was used 

 for genera of non-spore-forming rods that were regarded as essentially 

 peritrichous in nature, and the suffix bacillus for similar spore-forming rods. 

 As, however, subsequent investigators have (1) accepted the priority rule, 

 (2) felt that it was impossible to recognize the type of motihty found in the 

 ancestry of truly non-motile groups, or (3) felt that other characters were 

 more fundamental than those selected by Orla-Jensen, many of these terms 

 have not been generally used by later workers. 



Among the little used terms suggested or accepted by Orla-Jensen are: 

 Acetimonas, Nitromonas, Azotomonas, Rhizomonas, Corynemonas, Myco- 

 monas, Sulfomonas, Thiomonas, Thiococcus, Rhodomonas, Rhododictyon, 

 Amoebomonas, Rhodopolycoccus, Rhodosarcina, Spirophyllum, Denitro- 

 monas, Liquidomonas, Liquidovibrio , Liquidococcus, Solidococcus, Solido- 

 vibrio, Sporosarcina, Denitrobacterium, Caseobacterium, Liquidobacterium, 

 Urobacillus, Butyribacillus, Pectobacillus, Cellulobacillus, Putribacillus and 

 Botulobacillus. 



