A. Gray—Botanical Nomenclature. 429 
genera. It appears that R. Brown began, in an oblique way, 
the practice objected to, and for which there is often a plausible 
excuse; and the elder DeCandolle sometimes followed it. It 
was only when the practice was systematically carried out by 
one or two authors, that the consequences became apparent— 
for few genera or species have now their Linnean limits or sig- 
nification—and the new rule was practically proved to be a 
necessity. 
mong the recommendations contained in Article 86 was the 
restriction, ‘‘ or unless the author has not in advance approved 
the publication.” This does not alter the case, except for liv- 
lng authors: their approval ought to be obtained or counted 
on: and in respect to authors no longer living a botanist takes 
vhic 
Ing by Nuttall of new Umbelliyere to the elder DeCandolle 
When elaborating that order for the Prodromus, is a mark 
and not unusual instance. For this is a practice that need 
not be discouraged. Any small inconvenience that may arise 
m 
obscure or local periodicals. And they are more likely to have 
proper characters assigned to them, instead of vague descrip- 
tions, by incompetent or unpracticed hands, such as often try a 
botanist’s patience. 
Article 50 treats of the mode of dealing with such names as 
