LAWS OF NOMBNCLATUEE. 25 



(3.) If they have formerly made a name that has not 

 been accepted, not to establish another genus under 

 the same name, particularly in the same Order, or in a 

 neighbouring one. 



(4.) Not to dedicate genera to persons ia all respects 

 strangers to botany, or at least to natural history, nor 

 to persons quite unknown. 



(5.) Not to draw names from barbarous tongues, un- 

 less those names be frequently quoted in books of 

 travel, and have an agreeable form that adapts itself 

 readily to the Latin tongue, and to the tongues of 

 civilized countries. 



(6.) If possible, by the composition or the termina- 

 tion of the word, to call to mind the affinities or the 

 analogies of the genus. 



(7.) To avoid adjective nouns. 



(8.) Not to give to a genus a name whose form is 

 more properly that of a section {Eusideroxylon, for 

 example). 



(9.) To avoid taking up names that have already 

 been used, but have not been approved, and applying 

 them to genera different from the former, unless it be 

 wished again to dedicate a genus to a botanist ; but, 

 even in this case, it is desirable — 1 , that the nullity 

 of the first genus should be unquestionable; 2, that the 

 order in which it is proposed to re-establish the name 

 be quite distinct from the former one. 



(10.) To avoid making choice of names used in 

 zoology^ 



Art. 29. Botanists constructing names for sub- 

 genera or for sections will do well to attend to the re- 

 commendations of the foregoing article, as well as to 

 these : — 



