8 THE MARINE ALGAE OF PERU 
botanist. The Peruvian species other than those met with by 
Dr. Coker are mentioned by name at least, in the following pages, 
though it may hardly be assumed that none has been overlooked. 
Of the total of 123 species, 8 are Cyanophyceae, 23 are Chloro- 
phyceae, 18 are Phaeophyceae, and 74 are Rhodophyceae. 
NOMENCLATURE 
The nomenclature of the present report may impress some of its 
readers as being inconsistent, personal, and arbitrary rather than 
always conforming rigidly and solely to either the “American 
Со4е””* or the “Vienna Rules" with their Brussels Amendments.T 
In partial extenuation of this circumstance it may be pleaded 
that the best rules of nomenclature yet devised leave a good deal 
to individual judgment as to their interpretation and application 
and that unless some court of last resort in such matters is estab- 
lished and generally recognized, the personal element in the 
interpretation of rules must always lead to a certain diversity in 
usage. In the matter of recognizing priority of publication as 
affecting the choice of specific names, there is now little difference 
in practice among the taxonomic botanists of the world and our 
course in this respect will, we believe, not be considered peculiar. 
In the matter of recognizing the claims of priority as affecting 
generic names, there has been more divergence of opinion. The 
Brussels Congress adopted a list of “потта conservanda" among 
the generic names of the algae, these being mostly long-established 
names which it is sought to perpetuate, regardless of certain 
defects in their title. But, as the Brussels Congress neglected 
to name a species which should serve as the "type" of each genus 
thus placed outside the scope of the law, it is not always clear just 
for what a given generic name shall be "conserved." The so- 
called “American Code” recognizes no "nomina conservanda,” 
but does propose a scheme for the typifying of genera. In the 
following pages we have tried to decide each case on its individual 
merits. When it has been simply a matter of 
clear-cut priority, 
unembarrassed by other considerations, as, 
„оз л n dis 5 dort Ойша 
for example, іп the 
* Bull. Torrey Club 31: 249—261. 1904; 36: 55-63. 1909. 
t Régles internationales de la nomenclature botanique adoptées par le Congrés 
International de Botanique de Vienne 1905. Deuxiéme edition mise au point d'aprés 
les décis é International de Botanique de Bruxelles 1910. Jena. 1912. 
