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机构地区:[1]中国科学院水生生物研究所,武汉430072 [2]山西大学生命科学系,太原030006
出 处:《水生生物学报》1999年第3期257-263,共7页Acta Hydrobiologica Sinica
基 金:国家自然科学基金!39899400
摘 要:作者采用双向指示种分析法,对在中国分布的栅藻属植物进行了数量分类的初步研究。结果表明,52种栅藻属植物可分成5类。对该属的一些系统分类问题也进行了讨论。In this paper, 52 species of the genus Scenedesmus from China have been studied by means of numerical taxonomic methods. Twenty-five morphological characters which are all dual characters were adopted. The result produced by the twoway indicator species analysis (TWINSPAN)showed that 52 species may be divided into 5 types:1) cells oblong, elliptical or oval, with denticular, brevispines, verruca or granulate at two poles of cells and without long spines; 2) cells with long spines and with or without other ornament on cell wall; 3) cells without long spines and with denticular, verruca and ridge not only at two poles of cells but also on free cell wall; 4) cells with polar nodules or thickenings but not obvious and 5) cells fusiform,acicular or lunate, smooth or with small ornament on cell wall. The taxonomy in the genus was therefore discussed.
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