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1、植物分类学报 41(6):531-544(2003)ActaPhytotaxonomicaSinicaX葡萄科植物叶表皮特征及其系统学意义1,21132任 辉 潘开玉 陈之端王仁卿1(中国科学院植物研究所系统与进化植物学重点实验室 北京100093)2(山东大学生命科学学院 济南250100)StructuralcharactersofleafepidermisandtheirsystematicsignificanceinVitaceae1,21132RENHuiPANKai-YuCHENZhi-DuanWAN
2、GRen-Qing1(LaboratoryofSystematicandEvolutionaryBotany,InstituteofBotany,theChineseAcademyofSciences,Beijing100093,China)2(CollegeofLifeSciences,ShandongUniversity,Ji’nan250100,China)AbstractLeafepidermisof37speciesrepresenting11generaofVitaceaewasinvestigate
3、dusinglightmicroscopy(LM)andscanningelectronmicroscopy(SEM).Theshapesofleafepidermalcellsareusuallyirregularorpolygonal;thepatternsofanticlinalwallsarestraight,archedorsinuolate.Thestomatalapparatuses,onlypresentontheabaxialepidermisforallsampledgeneraexceptL
4、eea,canbeassignedintofivetypes.Theanomocytictype,occurringinParthenocissus,Yua,Vitis,Am2pelopsisandAmpelocissus,iscommoninVitaceae;whereastheotherfourtypescanbeconsidereddiagnosticofseveralgenera,suchasanisocytictypeforLeea,hemiparacytictypeforCissus,Cayratia
5、andTetrastigma,staurocytictypeforRhoicissus,MuscadianiaandTetrastigma,andcy2clocytictypeforTetrastigma.UnderSEMthecuticularmembraneoftheleafepidermisisstriated,scalyorgranular,andpapillaewereonlyfoundinYuaaustro-orientalis.Thisstudyprovidesleafepidermaleviden
6、ceforsupportingtheestablishmentofLeeaceaeasadistinctfamily,andthesepara2tionofYuafromParthenocissusasagenusoftheVitaceae.TherearetwomajorlineagesinVitaceae(excludingLeea),onecomprisingParthenocissus,Yua,Ampelocissus,Ampelopsis,MuscadiniaandVitismainlywithanom
7、ocyticstomatalapparatusesand5-merousflowers,andtheotherinclud2ingCayratia,Rhoicissus,CissusandTetrastigmamainlywithstaurocytic,hemiparacyticorcyclo2cyticstomatalapparatusesand4-merousflowers.KeywordsVitaceae,leafepidermis,Yua,stomatalapparatus,systematicsigni
8、ficance.摘要 在光学显微镜和扫描电镜下,对葡萄科Vitaceae11属37种代表植物的叶表皮特征进行了观察,发现该科植物叶表皮细胞形状为无规则形或多边形,垂周壁一般为平直、弓形或浅波状;气孔器通常仅分布在下表皮(火筒树属Leea偶尔可在上表皮观察到),除无规则型(地锦属Parthenocissus、俞藤属Yua、葡萄属Vitis、蛇葡萄属Ampelopsis和酸蔹
