32 LAWS or NOMENCLATURE. 



for the sake of avoiding confusion between names 

 begianing with the same syllables, the same system is 

 to be followed. For instance, two syllables are given, 

 together with the one or two first consonants of the 

 third ; or else one of the last characteristic consonants 

 of the name is added {JBertol. for Bertoloni, so that 

 it may be distinguished from.Bertero; or Michx. for 

 Michaux, to prevent confusion with Micheli). Chris- 

 tian names or accessory designations, serving to distin- 

 guish two botanists of the" same name, are abridged 

 in the same way {Adr. Juss. for Adrien de Jussieu, 

 Greertn. fil. or Gmrtn. f. for Geertner son). 



When it is a settled custom to abridge a name in 

 another manner, it is best to' conform to it {L. for 

 Linnaeus, St.-Hil. for Saint-Hilaire) . 



Section 5. 



On Names that a/re to he retained where a Group is divided, 

 remodelled, transferred, or moved from one rank to another, 

 or when two Groups of the sa/me ranh are united. 



Art. 53. An alteration of characters, or a revi- 

 sion carrying with it the exclusion of certaia ele- 

 ments of a group or the addition of fresh ones, does 

 not warrant a change in the name or names of a 

 group. 



Art. 54. When a genus is divided into two or more 

 genera, its name must be retained, and given to one of 

 the chief divisions. If the genus contains a section 

 or some other division which, judging by its name or 

 by its species, is the type or the origin of the group, 

 the name is reserved for that part of it. If there is 

 no such section or subdivision, but one of the parts 

 detached contains, however, a great many more spe- 



