5 — 



Amendment 



to the 



„Lois de la nomenclature botanique de 1867", 



reconimendecUfor acceptance 



to the Congress of Nomenclature to be held 



at Vienna 1905. 



By 

 H. Harms. 



In chapter III of the „Lois de la nomenclature botanique adopt^es 

 par le Congres international tenu ä Paris en aoüt 1867" (p. 17: Sur la 

 maniere de d^signer chaque groupe ou association de vegetaux en particulier) 

 is to be inserted: 



Section la. 



Starting - point for nomenclature. Restriction 

 of the principle of priority. 



Art. 17 a. The starting-point for the priority of the generic and specific 

 names is the year 1753 (Linne, Spec. pl. ed. 1.). 



Art. 17 b In Order to avoid an undesirable revolution in the nomen- 

 clature of generic names, that the strict application of the 

 principle of priority would occasion, a list containing the names 

 of such genera as are to be retained will be added to the rules 

 of nomenclature. The list is composed chiefly of such generic 

 names as are in general use in monographe and larger floristic 

 works. 



