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在同地种植条件下,对中国苎麻属5组13种的植物形态学和4组10种的花粉形态学进行比较研究表明:根系有分枝根型、萝卜根型和浅直根型;茎有直立茎型和匍匐茎型;花序为簇生花序组成穗状花序或复穗状花序或分枝型花序,或单个腋生;花粉萌孔有具内陷孔膜、具稍隆孔膜和无孔膜。不同组的根型、茎型、花序、花粉萌孔有明显不同,据此完善和修正了中国苎麻属组群的分类标准。分析了该属植物主要分类性状的演化趋势,建立了新的组间演化亲缘关系模型。
In the same planting conditions, the Chinese ramie 5 groups of 13 species of plant morphology and 4 groups of 10 species of pollen morphology were compared: the root branched root type, radish root type and light straight root type; stems There are upright stems and stolons; inflorescence clustered inflorescences composed of spikes or complex spikes or branches of inflorescences, or a single axillary; pollen sprouting with introverted pore membrane, with a slightly porous membrane and non-porous membrane . The root, stem, inflorescence and pollen germination of different groups were obviously different, so the taxonomy of ramie in China was improved and amended. The evolutionary trends of the main taxonomic traits of this genus were analyzed, and a new phylogenetic relationship model was established.