244 : Scientific Intelligence. 
Class, Cohort, Orders, Tribes, Genera, and Sections; such names 
as Division, Subdivision, Series, &e might be restricted to artifi- 
Chapter XIII relates to difficulties in phytography which 
ave grown out of various methods or absence of method in the 
nomenclature of organs, and from the want of Hoasedpeyes of 
the law of priority in such matters. The result of which in some 
departments, such as histological morphology, is a state of ppt 
not unlike that which Sooo in the names of groups before the 
ays of Tournefort and Linnzus. e may hope that order and 
lucidity will some day dawn upon this chaos and a common 
language replace this confusion of tongues. Meanwhile DeCan- 
dolle offers aren counsels, the utility of which, he says, is ano 
doubtful nor the application very difficult. 
1) Hold fast to common and universally known names, mhesher 
in Latin or in modern languages. Ladix, caulis, folium, fies, 
&e., with their vernacular equivalents, are not to give place t 
i : 
not mae . 
2) Do not Paces = idea that a change in the mode of 
wy eonerag, gi ning an organ requires a change of name. 
Although Linens did talks the leaf-blade for the leaf, and define 
view, involving merely a change of the definition, But one may 
intimate that DeCandolle here comes into conflict with another 
rule he insists on, namely, that terms should have unmistakably 
one _— . When we say—as we ever shall—that leaves are 
= ate, we speak according to the Linnean definition; when we 
say that their insertion is alternate, we use the word in a more 
comprehensive sense; when we have occasion to declare that 
cotyledons, hee petals, &c., are leaves, we use the word in 
the most comprehensive sense. All this involves considerable 
ambiguity ; and the endeavor to keep the new wine in the old 
the introduction of terms to express our conceptions, such as 
rhizome, caulome, 5 bike and the like. Yet these are ill-chosen 
terms, except the last. In particu lar, rhizoma has long ago been 
appropriated for something which is not of root nature, but the 
contrar 
