264 GENERAL SYSTEMATIC BACTERIOLOGY 



Castellani and Chalmers (1919, p. 1068) recognize and describe 

 Cladothrix dichotoma Cohn. 



It would seem that the genus Cladothrix Cohn with the description 

 as emended by Migula is not valid, because of prior use by De Candolle. 

 The name should not be used for organisms which show true branching, 

 as Actinomyces, Nocardia, etc. It may probably be regarded as a 

 synonym of Sphaerotilus. 



Cladotriceae. A tribal name proposed by Trevisan (1879, p. 15) 

 with the following diagnosis, "Sporae (arthrosporae) in filamentis 

 normalibus obvenientes. Filamenta pseudoramosa, basi ab apice 

 superiori distincta, vaginata vel evaginata." Later (1889, p. 926) 

 De Toni and Trevisan included the following genera, Sphaerotilus 

 Kiitz, Cladothrix Cohn and Nocardia Trevisan. 



This name (with the spelling Cladotricheae) was also used by Stern- 

 berg (1892, p. 19) to include the genus Cladothrix. 



Cladotricee. A variant of Cladotriceae used by Trevisan (1889, p. 9) 

 for the first tribe of the suborder Tricogene. 



Cladotricheae. A name used by Sternberg, a variant of Clado- 

 triceae, q.v. 



Cladotricheen. A variant of Cladotriceae q.v. used by Zopf (1885, 

 p. 51) to include the genus Cladothrix. 



Clathrococcus. A generic name proposed by Schmidt and Weis 

 (1902, p. 29) to replace Clathrocystis, q.v. as a name for a bacterial 

 genus. The generic description is (p. 292), 



Die einzelnen Zellen sind kugelig oder durch den Druck der sie umgebenden 

 etwas eckig. Die Teilungen geschehen erst nach drei Raumrichtungen, spater 

 nur nach zwei, und aus den anfangs soliden Zellverbanden geht daher eine hohl- 

 kugelige Wuchsform hervor mit zuletzt netzformig durchbrochener Wand. Die 

 Zellen sind anfangs unbeweglich, allmahlich aber losen sie sich gruppenweise ab 

 und schwarmen mittelst Geisseln davon. 



Apparently these authors have overlooked the genus Lamprocystis 

 created by Schroeter for this same purpose. 



The type species (monotypy) is Clathrococcus roseo-persidnus (Cohn) 

 Schmidt and Weis. 



Clathrocystis. A genus of blue green algae proposed by Henfrey 

 (1856, p. 52) for the species CI. aeruginosa (Kiitzing) Henfrey. This 

 genus was used by Cohn (1875, p. 156) to include an organism which 

 is now generally placed among the bacteria. This was named Cla- 

 throcystis roseo-persicina. It was found upon twigs and other plant 



