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Descriptive botanical names are scientific names of groups of plants that are irregular, not being derived systematically from the name of a type genus. They may describe some characteristics of the group in general or may be a name already in existence before regularised scientific nomenclature. Descriptive names can occur above or at the rank of family. There is only a single descriptive below the rank of family (the subfamily Papilionoideae). ==Above the rank of family== Descriptive names above the rank of family are governed by Article 16〔(【引用サイトリンク】title=International Code of Nomenclature for algae, fungi, and plants ) Article 16〕 of the International Code of Nomenclature for algae, fungi, and plants (ICN), which rules that a name above the rank of family may be either be ‘automatically typified’ (such as Magnoliophyta and Magnoliopsida from the type genus ''Magnolia'') or be descriptive. Descriptive names of this type may be used unchanged at different ranks (without modifying the suffix). These descriptive plant names are decreasing in importance, becoming less common than ‘automatically typified names’, but many are still in use, such as: : Plantae, Algae, Musci, Fungi, Embryophyta, Tracheophyta, Spermatophyta, Gymnospermae, Coniferae, Coniferales, Angiospermae, Monocotyledones, Dicotyledones, etc. Many of these descriptive names have a very long history, often preceding Carl Linnaeus. Some are Classical Latin common nouns in the nominative plural, meaning for instance ‘the plants’, ‘the seaweeds’, ‘the mosses’. Like all names above the rank of family, these names follow the Latin grammatical rules of nouns in the plural, and are written with an initial capital letter. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Descriptive botanical names」の詳細全文を読む スポンサード リンク
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