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:Stewartia'' as described by Philibert Commerçon is a synonym of ''Dombeya. ''Stewartia'' (sometimes spelled ''Stuartia''〔Sprague, T.A. (1928). The correct spelling of certain generic names. III. ''Kew Bulletin'' 1928: 337-365.〕〔Royal Botanic Gardens, Kew. ''Vascular Plant Families and Genera'': (Theaceae )〕〔Bean, W. J. (1980). ''Trees and Shrubs Hardy in the British Isles'' 4: 507-513. ISBN 0-7195-2428-8.〕〔Rushforth, K. (1999). ''Collins Photographic Guide to Trees''. ISBN 0-00-220013-9.〕) is a genus of 8-20 species of flowering plants in the family Theaceae, related to ''Camellia''. Most of the species are native to eastern Asia in China, Japan, Korea, Laos, Myanmar, Thailand, and Vietnam, with two (''S. malacodendron, S. ovata'') in southeast North America, from Virginia and Kentucky south to Florida and Louisiana.〔〔Li, J., Del Tredici, P., Yang, S., & Donoghue, M. J. (2002). Phylogenetic relationships and biogeography of Stewartia (Camellioideae, Theaceae) inferred from nuclear ribosomal DNA ITS sequences. ''Rhodora'' 104: 117-133 ((pdf file )).〕 They are shrubs and trees, mostly deciduous, though some species (e.g. ''S. pteropetiolata'') are evergreen; the evergreen species form a genetically distinct group and are split into a separate genus ''Hartia'' by some botanists,〔 but others retain them within ''Stewartia''.〔〔''Flora of China'' (draft account of Theaceae )〕 The Asian species include both shrubs and trees, growing to 3-20 m tall, while the American species are shrubs growing 3-5 m tall, rarely becoming small trees. The bark is very distinctive, smooth orange to yellow-brown, peeling in fine flakes. The leaves are alternately arranged, simple, serrated, usually glossy, and 3-14 cm long. The flowers are large and conspicuous, 3-11 cm diameter, with 5 (occasionally 6-8) white petals; flowering is in mid to late summer. The fruit is a dry five-valved capsule, with one to four seeds in each section.〔〔〔 The species are adapted to acidic soils, and do not grow well on chalk or other calcium-rich soils. They also have a high rainfall requirement and will not tolerate drought.〔 The genus was named in 1753 by Carolus Linnaeus to honour John Stuart, 3rd Earl of Bute. Owing to a transcription error, Linnaeus was given the name as 'Stewart',〔 and consequently spelled the name "Stewartia" (and continued to do so in all his subsequent publications). Some botanists and horticulturists, mainly in the past〔L'Héritier de Brutelle, C. L. (1785). ''Stirpes Novae aut Minus Cognitae'' (cited by W. J. Bean 1980).〕〔Siebold, P. F. von, & Zuccarini, J. G. (1835). ''Flora Japonica'' 1: 181, t.96. (Facsimile ).〕〔Dippel, L. (1889). ''Handbuch der Laubholzkunde''. Darmstadt. (Facsimile ).〕 but still widely in the UK〔〔〔〔 have interpreted Article 60 of the International Code of Botanical Nomenclature to consider "Stewartia" an orthographical error to be corrected to ''Stuartia'', but this type of correction has been discouraged by changes to the code in recent times. During the 19th century, the spelling ''Stuartia'' was "almost universally" used.〔 However, the original spelling "Stewartia" has been accepted by virtually all systematic botanists in recent treatments of the family 〔Chang, H. & Ren, S. (1998). Theaceae/Theoideae. ''Flora Reipublicae Popularis Sinicae'' 49 (3).〕〔Stevens, P. F., Dressler, S. & Weitzman, A. L. (2004). Theaceae. In K. Kubitzki (ed.), ''Families and Genera of Vascular Plants'' 6: 463-471.〕 and genus 〔〔Spongberg, S. A. (1974). A review of deciduous-leaved ''Stewartia'' (Theaceae). ''Journal of the Arnold Arboretum'' 55: 182-214.〕〔Li, J. (1996). Systematic study on the genera ''Stewartia'' and ''Hartia'' (Theaceae). ''Acta Phytotaxonomica Sinica'' 34: 48–67.〕〔Prince, L. M. (2002). Circumscription and biogeographic patterns in the Eastern North American-East Asian genus ''Stewartia'' (Theaceae: Stewartieae): insight from chloroplast and nuclear DNA sequence data. ''Castanea'' 67: 290-301.〕 as well as in numerous influential horticultural publications.〔Huxley, A., ed. (1992). ''New Royal Horticultural Society Dictionary of Gardening.''〕 ==Cultivation and uses== Several species of ''Stewartia'' are grown as ornamental plants for their very decorative smooth orange bark and their flowers produced at a time of year when few other trees are in flower.〔 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「Stewartia」の詳細全文を読む スポンサード リンク
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