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机构地区:[1]兰州大学生物系,兰州730000
出 处:《兰州大学学报(自然科学版)》1991年第3期84-95,共12页Journal of Lanzhou University(Natural Sciences)
摘 要:本文在扫描电镜及光镜水平上描述了国产豆科黄华族3属12种2变种植物共16个居群的花粉形态。根据花粉特征划分出3种类型,即:沙冬青型、黄花木型和小叶黄华型。花粉形态表明,沙冬青属是本族中比较原始和孤立的类群;黄花木属较为进化,且非常接近于黄华属中比较进化的种类;黄华属中以花互生的类型较为原始,而花轮生的高山种类刚较为进化;新疆黄华花粉形态特殊,应作为独立的种,不宜并入披针叶黄华作为其种下等级。The pollen morphology of 16 population including 3 genera, 12 speciesand 2 varieties of the tribe Thermopsideae (Leguminosae)from China wasexamined under optical microsope and scanning electron microscope. Thepollen morphology was divided into 3 different types based on pollenshape and aperture characters, i.e., Ammopiptanthus type, Piptanthustype, and Thermopsis chinensis type. Pollen morphology indicated thatAmmopiptanthus was the most primitive and isolated genus in the tribe;Piptanthus was the most advanced genus and had a close relationshipwith the advanced species of the genus Thermopsis. In the genus Thermopsis,those species with alternata flowers were primitive ones, e. g. T. chinensisand those with whorled flowers were advanced, e. g .T. barbata; T .turkestanicawith specific pollen morphology was a definite species and could not betreated as infraspecific taxon of T.lanceolata.
分 类 号:Q949.751.9[生物学—植物学]
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