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《荨麻科楼梯草属三种植物花序的补充描述.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、植物分类与资源学报2012,34(1):13~16PlantDiversityandResourcesDOI:10.3724/SP.J.1143.2012·11089荨麻科楼梯草属三种植物花序的补充描述吴增源。,王红,李德铢(1中国科学院昆明植物研究所生物多样性与生物地理学重点实验室,云南昆明650201;2中国科学院西南野生生物种质资源库,云南昆明650201;3中国科学院研究生院,北京100049)摘要:楼梯草属的花序不但是反映该属进化趋势的重要器官之一,而且还是该属的属下划分及种间鉴定的关键性状。本文基于大量的有花标本研究,
2、并参照模式标本及相关文献资料对该属的三种植物花序形态进行了补充描述。关键词:楼梯草属;花序;补充描述中图分类号:Q949文献标识码:A文章编号:2095-0845(2012)01—013—04SupplementaryDescriptionofInfloreseencesofThreeSpeciesinElatostema(Urticaceae)WUZeng.Yuan,',WANGHong。’LIDe—Zhu,,(1LaboratoryofBiodiversityandBwgeo~aphy,KunmingInstituteofBo
3、tany,ChineseAcademyofSciences,Kunming650201,China;2GermplasmBankofWildSpecies,KunmingInstituteofBotany,ChineseAcademyofSciences,Kunming650201,China;3GraduateUniversityoftheChineseAcademyofSciences,Beijing100049,China)Abstract:TheinflorescenceofElatostemaisnotonlyoneof
4、thekeycharactershelpfultounderstandtheevolution—arytrendinvariousinfra-generictaxa,butalsoplaysimportantroleinthedelimitationofitssectionsandseries.Inthispaper,basedoncarefulexaminationsofinflorescencesfromseveralvoucherspecimensincludingtypeandlitera—tures,thedescrip
5、tionofinflorescencesofthreespeciesinthisgenuswaspresented.Keywords:Elatostema;Inflorescences;SupplementarydescriptionElatostemaJ.R.Forst.&G.Forst.isthesec-theoneofimportantdiscriminativecharacterstoin-ondlargestgenusinUrticaceae,withabout300spe-fra—generictaxa,aswella
6、sthedelimitationofitsciesSOfarrecorded,mainlydistributedintropicalsectionsandseries.Similarly,thepistillatecapitu—andsubtropicalregionsofAfrica,AsiaandOceanialumisausefulcharacterfordistinguishingthespe—(Lineta1.,2003).InChina,about146speciescieswithineachseries(Wang,
7、1995,2010).How—aredescribed,withagreaternumberofspeciesre—ever,shortandincompletedescriptionsoftheseportedfromtropicalandsubtropicalregionssouthofcharactershavebeenprovidedformanytaxawhentheQinlingMountains(Lineta1.,2003).theywerefirstreposed,thelimitedavailabilityofT
8、heinflorescencesofElatostemaaredetermi.informationwithseveralspecimensandsometaxaisnate(Wang,2009).Staminateinflorescencesar
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