山柳科和堇菜科八个种的花粉形态——兼谈第伦桃亚纲六个科及省沽油科的系统关系

Eight Species of Pollen Morphology of Clethraceae and Violaceae,with Reference to Relationships among Six Families of Dillenidae and Staphyleaceae

通过光学显微镜和扫描电子显微镜对山柳科(Clethraceae)和堇菜科(Violaceae)8个种的花粉形态进行了观察。综合前人对第伦桃亚纲(Dillenidae)4个科即猕猴桃科(Actinidi-aceae)、山茶科(Theaceae)、旌节花科(Stachyuraceae)和大风子科(Flacourtiaceae)以及蔷薇亚纲(Rosidae)的省沽油科(Staphyleaceae)共22属36个种的孢粉学和已有的胚胎学资料,讨论了上述7个科的系统学关系。通过对大风子科(Flacourtiaceae)和杨柳科(Salicaceae)的花粉形态特征比较,支持APGII系统中将大风子科的大部分种归入杨柳科的处理。

The pollen grains of 8 species from the Clethraceae and Violaceae were investigated using light microscopy and scanning electron microscopy.Comparisons of the pollen morphology of 36 species within Actinidiaceae,Theaceae,Stachyuraceae,Flacourtiaceae,and Staphyleaceae which were studied by previous researchers,and together with their characters of embryology,the systematic relationships among the 7 families were discussed.Pollen data supported a treatment that a large part of species of Flacourtiaceae were moved into Salicaceae in APG II.