‘BOTANICAL NOMENCLATURE 235 
they cannot be kept up at the ane time in systematic on except 
in the following cases :— when the two genera in competition are in 
two different ivisions, or in 98 different classes of ae Ve egetal 
Kingdom, or even in two arama so far removed from one another 
as to avoid all danger of confus 
Examples.- _- Radulum Fries, "1825 (Fungi), does not necessarily 
annul Radula* Dumort., 1831 (Hepatice). Pigafettia Becc., 7 
(Palmacez) runs also little risk of being confused with Pigafettoa 
Massalongo, 1885 (Hepatic), so also we have Hookera Salisb.,* 
1808 (Liliaces), and Hovkeria Smith, 1808 (Musci). In the same 
way Anisomeris Presl, § 1833 (Rubiacew), ei be kept up without 
inconvenience with <dAnisomeria D. Don, 1882 SS gett 
Lastly, Rubus L. has never shut out Rubia L., although the e 
logy of both these names is undoubtedly the same (ruber = oa 
reper y.—The twenty-six signatories, Swiss and Belgian 
to the Propositions de changements aux lots de la nomenclature dota: 
nique as 1867 (1904), rely mainly on the statisties of Dr. Kuntze 
n Kev, Gen. “ee il, vet pp. 849-352) Fader aiiae beet rs 
wo g 
letters, seeing that the non-observance of this rule would at once 
entail changing the names of 77 genera and of 1524 species. But 
if the 77 examples given by Dr. Kuntze are checked one by one, in 
keeping up the year 1758 as the starting-point and in adopting the 
exception here proposed the possible changes (not all indispensable) 
er reduced - enera with somewhere about 180 species. It is 
odest list elation with the thousands of changes of name 
whieh would ‘follow from the unconditional acceptance of Dr. 
of variations due to errors of spelling in the names of persons, of 
which Ari. 66, sect. 1, permits correction, placing roa in the same 
category with typographical errors, and which, moreover, Messrs. 
en (January, + ata — includes all generic names 
published up to the end of Mar 
The end aimed ak in the pre e here proposed as as regards 
oe (and para-homonyms), is not to make retroactive the 
* Engler and Prantl I bstituted $ for tk of this genus» 
+ The Italian text gives us the vahisae se ca icerce Salk? 837.” This, 
however, is incorrect, as Martius describes it as a section of ae genus Metro- 
om 
a single species of Hookera has been described, botanists have 
ee agreed to adopt the later name of Brodiea Smith (1811), under which 
many Sgt have ea aeeeri 
§ Italian botanists have, ‘howereh, overlooked the fact that Anisomeris 
Presl, is iets a Jacq. 60), under which name the species are 
numerated in all systematic works ; and further, that Anisomeria D. Don, which 
saateidah only two species. is antedated by Pireunia Bert. (1829), under which 
generic name several species are described.—{ Tran: P 
R 
