摘要
利用光学显微镜对山东产藨草属（Scirpus）11个类群的苞片下表皮微形态进行了观察和研究。结果表明,该属11个种的苞片下表皮微形态根据脉间气孔器列数可以分为两个类型,其中类型Ⅰ：脉间气孔器为4~12列,又可分为2个亚类型;类型Ⅱ：脉间气孔器为1~2列,又可分为4个亚类型。研究表明：藨草属苞片下表皮微形态支持藨草属中藨草亚属和秆状苞藨草亚属的划分;支持藨草亚属中具球茎藨草组和丝状刚毛藨草组的划分;支持秆状苞藨草亚属中藨草组的成立;对于湖边藨草组提出了不同的处理意见：该组仅包括青岛藨草S.trisetosusTang etWang和藨草S.triqueterL.两种,并将剑苞藨草S.ehrenbergiiB cklr.和水葱S.validusVahl分别独立成组,其新组名分别为：Sect.EhrenbergiiF.Z.Li,＆L.N.Liu sect.nov.,Sect.ValidusF.Z.Li,＆L.N.Liu sect.nov.。
The micro-morphological characteristics of bract abaxial epidermis of 11 species of Scirpus from Shandong Province were studied under light microscope. The results show that the micro-morphological characteristics of bract abaxial epidermis can be divided into two types： （Ⅰ） Between the veins stomatal apparatus is 4 - 12 rows, which may be divided into 2 subtypes. （ Ⅱ ） Between the veins stomatal apparatus is 1 -2 rows, which may be divided into 4 subtypes. The evidences support the genus Scirpus was divided into two subgenus： subgen Scirpus and subgen Isolepis （ R. Br. ） Pax; subgen Scirpus is further divided into Sect. Bolboschoenus Aschers. , Sect. Trichophorum （ Pers. ） Darl. ; and the establishment of the Sect. Actaeogeton Reichb of the subgen Isolepis （ R. Br. ） Pax ; Moreover, Sect. Schoenoplectus Reichb. Only including S. trisetosus Tang et Wang, and S. triqueter L. The evidences also support S. ehrenbergii Boecklr. ,S. validus Vahl should each be built as a new section Sect. Ehrenbergii F. Z. Li, ＆ L. N. Liu sect. nov. , Sect. Validus F. Z. Li, ＆ L. N. Liu sect. nov.
出处
《武汉植物学研究》
CAS
CSCD
北大核心
2007年第4期396-400,共5页
Journal of Wuhan Botanical Research
基金
山东省自然科学基金重点项目(Z-2002D04)资助
关键词
藨草属
苞片下表皮
微形态
山东省
Scirpus
Bract abaxial epidermis
Micro-morphology
Shandong Province
