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Variety (botany)

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Clash Royale CLAN TAG #URR8PPP taxonomic rank below subspecies This article is about the taxonomic rank in botany. For other uses, see Plant variety. Not to be confused with the legal term "plant variety", equivalent to the cultivar rank in taxonomy In botanical nomenclature, variety (abbreviated var. ; in Latin: varietas ) is a taxonomic rank below that of species and subspecies but above that of form. [1] As such, it gets a three-part infraspecific name. It is sometimes recommended that the subspecies rank should be used to recognize geographic distinctiveness, whereas the variety rank is appropriate if the taxon is seen throughout the geographic range of the species. [2] Contents 1 Example 2 Definitions 3 Other nomenclature uses 4 See also 5 References 6 Bibliography Example The pincushion cactus, Escobaria vivipara (Nutt.) Buxb. , is a wide-ranging variable species occurring from Canada to Mexico, and found throughout New Mexico below about 2,600 metres (8,500 f...

自動鉛筆

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Clash Royale CLAN TAG #URR8PPP 施德樓 925 65 铅芯笔 ( 英语: Mechanical pencil [1] , propelling pencil [2] ),又稱 自動筆 或 活动铅笔 ,是一种固体颜料芯可更换并且可以机械伸缩的铅笔。铅笔芯与外壳不是固定相连的,通常由石墨构成,当它的前端磨损的的时候,可以向外延长。 自动铅笔通常在工程制图和快速工整的书写中可以无需削...

Robert Brown (botanist, born 1773)

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Clash Royale CLAN TAG #URR8PPP For other botanists with the same name, see Robert Brown (botanist, born 1842) and Robert Brown (New Zealand botanist). Robert Brown Robert Brown in 1855 Born ( 1773-12-21 ) 21 December 1773 Montrose, Scotland, UK Died 10 June 1858 (1858-06-10) (aged 84) 17 Dean St, Soho Square, London, England [1] Nationality Scottish Citizenship British Alma mater University of Aberdeen University of Edinburgh Known for Brownian motion Scientific career Fields Botany Author abbrev. (botany) R.Br. Robert Brown FRSE FRS FLS MWS (21 December 1773 – 10 June 1858) was a Scottish botanist and palaeobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fund...

查看“战舰少女:U1206”的源代码

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Clash Royale CLAN TAG #URR8PPP