%0 Journal Article
%T NUMERICAL VARIATION OF FLOWER PARTS AND THE AXILLARY FLOWERS IN WOONYOUN GIA SEPTENTRIONALIS (DANDY) LAW<br>焕镛木花部数量变异和腋生花现象
%A ZENG Qing-Wen
%A GA Ze-zheng
%A ZHANG Dian-xiang
%A <br>曾庆文
%A 高泽正
%A 张奠湘
%J 热带亚热带植物学报
%D 2001
%I 
%X Flowerlocation,sex ratioand numericalvariationof the flowerpartsof Woonyoungia septen trionalis(Dandy)Law,an endemicspeciesin China,wereinvestigatedby randomsamplingtrees fromnaturalpopulationof Woonyoungia septentrionalis inMulunVillage,HuanjiangCounty(Guangxi Province).Althoughmostof theflowers(90%)wereterminalas previouslydescribed,a smallfraction(10%)werefoundto be axillary,whichwas not recordedpreviously.The ratioof maleto female individualswas1.21:1.Statisticresultsfrom600flowersin20individualsfrom introducedtreesin SouthChinaBotanicalGardenandfromnaturalpopulationin Mulunshowthatthenumberof flower parts,exceptthenumberof thecaeperstamenandthenumberof ovulespercarpel,is variable.The variationsare:2-6tepalsin oneor two whorls,81-152stamensin maleflowers,two whorlsof tepals,2-4intheouterwhorl,5-13intheinner,and3-8carpelsinfemalflowers.Two thecaeineachstamen,andtwoovulesineachcarpelaretheonlystablecharacters.Greatvariationinfloralcharactersindicates thatthisspeciespossesseshighgeneticdiversity.The phylogeneticsignificanceof co-occurrenceof axillaryand terminalflowers,the heterobathmyof floralcharacters,and the tenabilityof the genus Woonyoungia arediscussed.
%K Woonyoungia septentrionalis
%K Axillaryflower
%K Numericalvariationof flowerparts
%K Heterobathmy<br>焕镛木
%K 腋生花
%K 花部数量变异
%K 异步进化
%K 木兰科
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=A74F042DF90151A4E3EF193E13FD5E1E&aid=E03451D2F0313C6C&yid=14E7EF987E4155E6&vid=9CF7A0430CBB2DFD&iid=E158A972A605785F&sid=31BCE06A2FD82A16&eid=85002451B65CE0D1&journal_id=1005-3395&journal_name=热带亚热带植物学报&referenced_num=0&reference_num=28