摘要
文章报道了新种屏边开口箭T.pingbianensis J.L.Huang et X.Z.Liu及其核型和花粉形态。屏边开口箭的核型公式为2n=38=14m+10sm+8st+6t,具明显的二型性,属3C型。花粉粒为球形,无萌发孔沟,外壁具皱块状纹饰。从花结构、核型和花粉形态上看,屏边开口箭和伞柱开口箭T.fungilli-formis Wang et Liang亲缘关系近,而且伞柱开口箭比屏边开口箭在一系列特征上都较特化。
A species of the genus Tupistra, T. pingbianensis J. L. Huang et X. Z. Liu, is described as new, and its karyotype and pollen morphology are reported. The bimodal kary-otype of this species is formulated as 2n=38 = 14m+10sm + 8st + 6t, and pollen grains are spheroidal, inaperturate, with rugulate exine sculpture. Based on its floral structure, kary-otype and pollen morphology, T. pingbianensis J. L. Huang et X. Z. Liu is considered phy-logenetically closely related to T. fungilliformis Wang et Liang. Whether the repense rhizome , solitary leaves of T. pingbianensis J. L. Huang et X. Z. Liu indicate a close relationship between the genus Tupistra and the genus Aspidistra needs further studies.
出处
《植物分类学报》
CSCD
1996年第6期592-596,共5页
Acta Phytotaxonomica Sinica
基金
国家自然科学基金
关键词
开口箭属
新种
染色体组型
屏边开口箭
花粉形态
Tupistra pingbianensis J. L. Huang et X. Z. Liu
Karyotype
Pollen morphology
