山东藨草属(广义)植物果皮微形态特征及其分类学意义

摘要

The micro-morphological characteristics of nut epidermis of 11 species of Scirpus from Shandong were studied under light microscope and scanning electron microscope (SEM). The micro-morphological characteristics of the nut epidermis were divided into four types: Ⅰ Waveform reticulate sculpture, Ⅱ Tuberculate-reticulate sculpture, Ⅲ Smooth sculpture, and Ⅳ reticulate sculpture. The evidence supported that section Sect. Bolboschoenus As-cheron.Sect. Scirpus & Sect. Trichophorum (Pers. ) Darl.,which belongs to Subgen. Scirpus should be promoted to Bolboschoenus (Ascheron) PaWa, Scirpus L.. Sect. Schoenoplectus Reichb. & Sect. Actaeogeton Reichb,which belongs to Subgen. Isolepis should be promoted to Schoenoplectus (Rchb. ) Palla. Sect. Schoenoplectus (Reichb. ) F. Z. Li & L. N. Liu,Sect. Actaeogeton (Reichb.) F. Z. Li & L. N. Liu,Sect. Ehrenbergii F. Z. Li & L. N. Liu should be retained in Schoenoplectus (Rchb. ) Palla. Evidence of the micromorphological characteristics of the fruits supported that Scirpus trisetosus Tang et Wang should be treated as a synonym of Scirpus triqueter L. Eight species of plants names of Scirpus from Shandong have been amended.%利用光学显微镜和扫描电镜对山东产藤草属Scirpus L.(广义)11个类群的坚果果皮微形态进行了观察和研究,该属11种的微形态可以分为4个类型,即:Ⅰ波形网状纹饰,Ⅱ网瘤状复合纹饰,Ⅲ平滑型纹饰,Ⅳ横长网状纹饰.研究结果支持将藤草属Scirpus L.(广义)中藨草亚属Subgen.Scirpus的具球茎藨草组Sect.Bolboschoenus Ascheron、藨草组Sect.Scirpus和丝状刚毛藤草组Sect.Trichophorum (Pers.) Darl.分别提升为三棱草属Bolboschoenus( Ascheron) Palla和蔗草属Scirpus L.以及将藤草属Scirpus L.(广义)中秆苞蔗草亚属Subgen.lsolepis的湖边藨草组Sect.Schoenoplectus Reichb.和藨草组Sect.Actaeogeton Reichb提升为水葱属Schoenoplectus( Rchb.)Palla的处理意见.认为应在水葱属下设立湖边水葱组Sect.Schoenoplectus ( Reichb.)F.Z.Li & L.N Liu,藨草组Sect.Actaeogeton( Reichb.)F.Z Li & L.N.Liu,剑苞藤草组Sect.Ehrenbergii F.Z.Li & L.N.Liu.支持将青岛藤草Scirpus trisetosus Tang et Wang作为藤草Scirpus triqueter L.异名处理的意见.并对山东藨草属种类的学名进行了订证.