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''Wigandia'' is a genus of flowering plants within the waterleaf subfamily, Hydrophylloideae. They are found mainly in Central America and South America, though one or two species are found as far north as the United States. Some are grown as ornamental plants and will flourish in most Mediterranean or temperate regions. The genus is named for Johann Wigand (ca. 1523-1587), German Lutheran cleric and theologian, and Bishop of Pomesania. 〔"CRC World Dictionary of Medicinal and Poisonous Plants" - Umberto Quattrocchi〕 Within the Hydrophylloideae, ''Wigandia'' species are unusual in having minute seeds and a high base chromosome number (19); it is also the only neotropical genus in the subfamily.〔Constance, L. (1963). Chromosome number and classification in Hydrophyllaceae. ''Brittonia, 15'', 273-285.〕 Some species originally classified in ''Wigandia'' are now treated in other genera, e.g. ''Eriodictyon''. There is a group of closely related genera within the Hydrophylloideae subfamily, and it is likely that further taxonomic work will result in additional reclassifications. A recent molecular phylogenetic analysis of the Hydrophylloideae〔(Ferguson, D. M. (1998) ). Phylogenetic analysis and relationships in Hydrophyllaceae based on ndhF sequence data. ''Systematic Botany, 23'', 253-268.〕 included two ''Wigandia'' species (''W. caracasana'' and ''W. urens''), and confirmed that they lay within a clade that includes ''Eriodictyon'', and also the genera ''Nama'' and ''Turricula''. The genus as currently recognized comprises over 20 species, including the following: *''Wigandia brevistyla'' Cornejo〔Cornejo, X. (2007). Wigandia brevistyla: a new Hydrophyllaceae from the Dominican republic. ''Anales Del Jardin Botanico De Madrid, 64'', 63-67.〕 *''Wigandia caracasana'' *''Wigandia crispa'' *''Wigandia darii'' *''Wigandia disparaginoides'' *''Wigandia ecuadorensis'' Cornejo〔Cornejo, X. (2006). ''Wigandia ecuadorensis'' (Hydrophyllaceae), a new species of the tropical dry forests on the west coast of Ecuador. ''Novon, 16'', 324-327.〕 *''Wigandia ericodes'' *''Wigandia herbacea'' *''Wigandia imperialis'' *''Wigandia kraussii'' *''Wigandia kunthii'' *''Wigandia lasiocarpa'' *''Wigandia laxifolia'' *''Wigandia leucocephala'' *''Wigandia macrophylla'' *''Wigandia peruviana'' *''Wigandia pruritiva'' *''Wigandia reflexa'' *''Wigandia scorpioides'' *''Wigandia seriphiodes'' *''Wigandia urens'' *''Wigandia vigieri'' *''Wigandia wurdackiana'' Species formerly classified within ''Wigandia'' include: *''Eriodictyon californicum'' (formerly ''W. californica'') ==References== 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「Wigandia」の詳細全文を読む スポンサード リンク
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