|
''Rhodochiton atrosanguineus'' is a herbaceous perennial vine〔 native to Mexico. Its dangling flowers have a pink, bell-shaped calyx of sepals surrounding a protruding, tubular corolla of purple-black petals.〔 It has been cultivated as an ornamental plant since at least 1836.〔 It has somewhat hairy, heart-shaped leaves, often with purple venation. The vine can reach three metres in length in perfect conditions, but more-likely 1.5-2.5 metres.〔 The seeds are 3mm across. Although the specific epithet is sometimes spelt ''atrosanguineum'', ''chiton'' in Greek is masculine,〔 so the ending is correctly -''us''.〔 ''R. atrosanguineus'' has been known colloquially in the UK as the "black man's willy". Another common name is purple bell vine or simply purple bell.〔 All ''Rhodochiton'' species are sometimes placed in the genus ''Lophospermum''.〔 ==Taxonomic history== Wayne J. Elisens has outlined the somewhat confused taxonomic history of the name of this species. In 1829, Joseph Gerhard Zuccarini sent seeds and a description to individuals and botanical gardens under the name "''Rhodochiton volubile''", considering it to be a new genus; however the name was not formally published. In 1832, Zuccarini decided that it was actually a ''Lophospermum'', and published the name ''Lophospermum atrosanguineum'', writing that "I held it at first to be new genus and sent the seeds obtained in the summer of 1829 to several gardens under the name ''Rhodochiton volubile''. The figure in the Botanical Register has convinced me of the identity of the genus."〔 Not knowing of Zuccharini's change of name, in particular his publication of the epithet ''atrosanguineum'', in 1834 Christoph Friedrich Otto and Albert Gottfried Dietrich published and illustrated ''Rhodochiton volubilis'', an illegitimate name since a prior epithet existed. In 1943, Rothmaler provided a legitimate combination in the genus ''Rhodochiton'', namely ''Rhodochiton atrosanguineus''.〔 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「Rhodochiton atrosanguineus」の詳細全文を読む スポンサード リンク
|