37 



*) Not to use again a name which has already been used and has lapsed into synonymy 

 (homonym). 



c) Not to dedicate genera to persons who are in all respects strangers to botany, or at 

 least to natural science, nor to persons quite unknown. 



d) Not to take names from barbarous tongues, unless those names are frequently quoted 

 in books of travel, and have an agreeable form that is readily adapted to the latin tongue and to 

 the tongues of civilized countries. 



e) To recall, if possible, by the formation or ending of the name, the affinities or the 

 analogies of the genus. 



/) To avoid adjectives used as nouns. 



g-) Not to give a genus a name whose form is rather that of a subgenus or section (e. g. 

 Eusideroxylon, a name given to a genus of Lauraceae, which, however, being valid, cannot be changed). 

 Ä) Not to make names by the combination of two languages {nomina hybridd). 



VI. Botanists constructing names for subgenera or sections, will do well to attend to the 

 preceding recommendations and also to the following: 



a) Give, where possible, to the principal division of a genus, a name which, by some modi- 

 fication or addition, calls the genus to mind (for instance, Eu placed at the beginning of the name, 

 when it is of greek origin; -astrum, -ella at the end of the name, when latin, or any other modi- 

 fication consistent with the grammar and usages of the latin language). 



V) Avoid calling a subgenus or a section by the name of the genus to which it belongs, 

 with the final -oides or -opsis: on the contrary reserve this ending for a section which resembles 

 another genus, by adding in that case -oides or -opsis to the name of that other genus, if it is of 

 greek origin, to form the name of the section. 



c) Avoid taking as the name of a subgenus or section a name which is already in use as 

 such in another genus, or which is the name of an admitted genus. 



VII. When it is required to express a subgeneric or sectional name together with the 

 name of the genus and the name of the species, the name of the section is put between the others 

 in a parenthesis. E. g. Astragalus (Cycloglottis) contortuplicatus. 



§ 4. Names of species and of subdivisions of species. 



Art. 26. All species, even those that singly constitute a genus, are designated 

 by the name of the genus to which they belong followed by a name (or epithet) 

 termed specific, usually of the nature of an adjective (forming a combination of two 

 names, a binomial, or binary name). 



Examples: Dianthus monspessulanus , Papaver Rhoeas, Fumaria Gussonei, Uromyces Fahae, 

 Geranium Robertianum , Embelia Sarasinorum, Adiantum Capillus- Veneris. Linnaeus has sometimes 

 introduced symbols in specific names; these must according to art. 26 be transcribed. Ex.: Scandix 

 Pecten- Veneris (= Scandix Pecten ^J ; Veronica Anagallis-aquatica (= Veronica Anagallis \J). 



necomiueiidations. 



VHI. The specific name should, in general, give some indication of the appearance, the 

 characters, the origin, the history or the properties of the species. If taken from the name of a 

 person, it usually recalls the name of the one who discovered or described it, or was in some way 

 concerned with it. 



IX. Names of men and women and also names of countries and localities used as 

 specific names, may be substantives in the genitive (Clusii, saharae) or adjectives (Clusianus, dahuricus). 

 It will be well, in the future, to avoid the use of the genitive and the adjectival form of the same 

 name to designate two different species of the same genus: for example Lysimachia Hemsleyana 

 Maxim. (1891) and Z. Hemsleyi Franch. (1895). 



