RULES. 199 



to them, the same rules being observed as in the case of 

 hybrids. 



Art. 40. Seedlings, half-breeds of uncertain origin, and 

 sports should receive from horticulturists fancy names in 

 common language, as distinct as possible from the Latin 

 names of species or varieties. When they can be traced 

 back to a botanical species, sub-species, or variety, this is 

 indicated by a succession of jiames {Pelargonium zonale, 

 Mrs. Pollock). 



Art. 4L The date of a name or of a combination of names 

 is that of its actual and irrevocable publication. 



Art. 42. Publication consists in the sale or the distribution 

 among the public of printed matter, plates, or autographs. It 

 consists, likewise, in the sale or the distribution, among the 

 leading public collections, of numbered specimens, accompanied 

 by printed or autograph tickets, bearing the date of the sale or 

 distribution. 



Art. 48. For the indication of the name or names of any 

 group to be accurate and complete, it is necessary to quote the 

 author who first published the name or combination of names 

 in question. 



Art. 5L When a group is moved, without alteration of 

 name, to a higher or lower rank than that which it held before, 

 the change is considered equivalent to the creation of an entirely 

 new group, and the author who has effected the change is the 

 one to be quoted. 



Art. 55. In case two or more groups of the same nature are 

 united into one, the name of the oldest is preserved. If the 

 names are of the same date, the author chooses. 



Art. 59. Nobody is authorized to change a name because it 

 is badly chosen or disagreeable, or another is preferable or 

 better known, or for any other motive either contestable or of 

 little import. 



Art. 68. Every friend of science ought to be opposed to the 

 introduction into a modern language of names of plants that 

 are not already there, unless they are derived from a Latin 

 botanical name that has undergone but a slight alteration. 



