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Hort., in the taxonomy of plants, is an abbreviation used to indicate a name that saw significant use in the horticultural literature (usually of the 19th century and earlier), but was never properly published. ==Origins and usage== "Hort.," short for ''Hortulanorum'',〔 was proposed in order that a non-wild, cultivated plants known and described in agriculture or gardening circles can be examined by taxonomists, to be examined if they can be established as species, and published. The proposal was made at the 1928 "International Congress of Horticulture of Vienna"〔 by citrus scholar Tyozaburo Tanaka. For example, for the clementine, the following binomial name was adopted by Tanaka: :''Citrus clementina'' Hort. ex Tanaka With respect to the citrus, Tanaka's system is no longer considered (For the clementine example above, the hybrid name ''Citrus × clementina'' would be favored by most consensus). However, it is still useful as an expedience for designating the numerous Japanese "types" (hybrids, cultivars, accessions, phenotypes). While Swingle recognized only 16 citrus genera,〔 Tanaka came up with some 157 species〔 or close to 160. Tanaka's approach has been characterized as that of a "splitter", and Swingles that of a "lumper",〔 but recent comparative research on phenotypes and genetics bear out support for much fewer species (4 species〔Scora and Kumamoto (1983), cited by Martin.〕). 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「Hort.」の詳細全文を読む スポンサード リンク
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