|
}} ''Iris proantha'' is a beardless iris in the genus ''Iris'', in the subgenus ''Limniris'' and in the ''Chinenses series'' of the species. It is a rhizomatous herbaceous perennial. It is written as 小鸢尾 in Chinese script and known as ''xiao yuan wei'' in China.〔(【引用サイトリンク】url=http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?429048 )〕〔(【引用サイトリンク】url=http://www.flph.org/s/Iris%20proantha )〕 It has the common name in (China) of 'small iris'.〔〔 It was first published and described by Freidrich Diels in the 'Svensk Botanisk Tidskrift Utgifven af Svenska Botaniska Foreningen' (of Stockholm) Issue xviii, p427 in 1924.〔(【引用サイトリンク】 url=http://www.ipni.org/ipni/idPlantNameSearch.do?id=438990-1 )〕 It was found in Kiangsu (now known as Jiangsu) and Ankwei (now known as Anhui) of China. In his original description, Diels noted that it had no appendages on the outer perianth lobes, this meant the iris is part of the Apogon Section of the Limniris subgenus. But he was mistaken and the plant does have an appendage. It was found that Diels had made his description due to a pressed specimen.〔 In 1989, ''Iris pseudorossii'' (before it was found to be a synonym of Iris proantha), was found in Baishui, past Nga-ba village. It is mentioned in the RHS journal, 'New Plantsman' (in 2000).〔(【引用サイトリンク】url=https://www.rhs.org.uk/about-the-rhs/pdfs/publications/The-Plantsman/General-PDFs/plantsmanindex19942009 )〕 It was later verified by United States Department of Agriculture Agricultural Research Service on 4 April 2003.〔 In 2007, it was found in the Indian state of Arunachal Pradesh by Bhaumik and Pathak. As most irises are diploid, having two sets of chromosomes. This can be used to identify hybrids and classification of groupings. It has a chromosome count: 2n=50,〔 and 2n=44, Mao & Xue, 1986.〔 Iris proantha is not cultivated in Europe.〔(【引用サイトリンク】url=http://www.orchideenkultur.net/index.php?topic=28569.30 )〕 Iris proantha and ''Iris speculatrix'' can be found in Hangzhou Botanical Garden and in Tianmu Mountain National Nature Reserve, close to Hangzhou. In 2012, the plants of the Hangzhou West Lake Area from Zhejiang Province lists ''Iris proantha''. ==Description== Iris proantha has long, brown, slender rhizome that has many branches or stolons, that help it spread into large clumps.〔〔〔British Iris Society (1997) 〕 The rhizomes are surrounded by several rigid fibres which are the remnants from previous seasons flowers.〔〔 Under the rhizome, are secondary roots growing into the soil, looking for nutrients. These roots have small nodules on them.〔 These are used to fix nitrogen, from the soil.〔 It has yellow-green, linear (grass-like), which measure between long and wide.〔〔〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-chapitre-ii-iris-a-touffe-et-autre-partie1-106081126.html )〕〔〔 They then elongate after flowering, growing up to long.〔〔〔 They have 1 – 2 veins.〔〔〔 It has a short flowering stem of between tall.〔〔〔 It has one terminal (at the top of the stem) flower, between March and April.〔〔〔 It has 2 green, lanceolate (lance-like), long and wide, spathes (leaves of the flower bud).〔〔〔〔 The flowers come in a range of blue shades, from purple, to pale violet, to blue, to white and pale pink.〔〔〔〔〔〔 They are between in diameter.〔〔〔〔 It has 2 pairs of petals, 3 large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals (or tepals, known as the 'standards'.〔 The falls are obovate (egg-shaped), long and wide, with a horseshoe shaped mark (in a darker colour) surrounding a paler signal area and a yellow crest.〔〔〔〔〔 The standards are the same colour as the falls, erect, oblanceolate, long and wide.〔〔〔 It has a 6–10 mm long pedicel, 2.5–3.5 cm long perianth tube, white, 1 cm long stamens and green, cylindrical, 4–5 mm long ovary.〔〔〔 It has 1.8 cm long and 4 mm wide style branch, which are the same colour as the petals.〔〔 After the iris has flowered, between May and July, it produces a globose (spherical), seed capsule, about 1.2-1.5 cm in diameter. The top of the capsule has a short beak.〔〔 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「Iris proantha」の詳細全文を読む スポンサード リンク
|