260 GENERAL SYSTEMATIC BACTERIOLOGY 



Apparently Hansgirg (1888, p. 229) was the first to use the correct 

 spelling Cladothrichaceae. He included it as the first family of the 

 order Desmohaderia, with the single genus Cladothrix. 



Hueppe (1891, p. 31) followed Zopf, as did Baumgarten (1900, p. 

 129). 



This family name has apparently not been recognized by later 

 writers, 



Cladothrichacei. An aberrant form of speUing the family Clado- 

 thrichaceae {g.v.) used by Schroeter (1889, p. 173). 



Cladothricheae. A tribal name used by Hueppe (1885) to include 

 the genus Cladothrix. A variant of Cladothriceae q.v. 



Cladothricheen. An aberrant method of spelling the family name 

 Cladothricaceae {g.v.) first used by Zopf (1884, p, 45) to include the 

 genus Cladothrix Cohn. This designation has also been used by Zopf 

 (1885), Hueppe (1885), Baumgarten (1900), etc. 



Cladothrix. This generic name v/as published in De CondoU^s 

 Prodromus (1849) for a genus of the phanerogamic family Amaran- 

 taceae. It has since generally been recognized as valid in this sense 

 by botanists. 



Cohn (1875, p. 185) used this as a bacterial generic name to include 

 the single species Cladothrix dichotoma, an organism found in foul water. 

 It is colorless, partly floating on the water and partly attached to 

 decaying algae. The filaments are very slender, apparently unseg- 

 mented, straight or somewhat bent, similar to a colorless Leptothrix. 

 The filaments of the latter, are however, unbranched while in Clado- 

 thrix they are repeatedly branched and with considerable regularity. 

 By use of high magnifications he noted that it was not a true dichot- 

 omy, but false branching, as in the blue green alga Scytonema. The 

 genus was included in the tribe Nematogenae. 



Trevisan (1879, p. 139) included this as the sixteenth genus of his 

 family Bacteriaceae in the tribe Vibrionieae and subtribe Cladothri- 

 ceae with the following description: 



Somatia cylindrica, leptotrichoidea, infeme vix articulata, pupeme distincte 

 articulata, tenerrima, stricta vel subundulata pseudo-dichotoma, microgonidia e 

 serie cellularum divisione longitudinal! et transversa succedanea multipartitarum 

 orta, globulosa, diaphragmatibus ruptis in pseudo-sporangium densissime con- 

 gesta, demum e vagina lateraliter erumpentia et in somatia evoluta, foventia. 



Magnin (1880, p. 97) followed Cohn's description without modifica- 

 tion. 



