中国铁角蕨科铁角蕨属一新记录杂交种——东方铁角蕨
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尹燕飞, 唐剑泉, 赵华渊, 赵吉建, 项颖颖, 申卫星
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Asplenium×akaishiense Otsuka (Aspleniaceae), a New Recorded Hybrid Species from China
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Yanfei YIN, Jianquan TANG, Huayuan Zhao, Jijian ZHAO, Yingying XIANG, Weixing SHEN
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表1 东方铁角蕨和推测亲本的比较形态学特征
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Table 1 Comparative morphological characteristics of A.× akaishiense and two putative parents
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物种 Species | 芽孢 Presence of gemma | 叶片分裂程度 Pinnation of lamina | 叶形 Shape of lamina | 羽柄长 Stalk length of pinna/mm | 小羽片柄长 Stalk length of pinnule/mm | 叶缘 Margin of pinnae or pinnule segment | 孢子囊群长 Length of indusium/mm |
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东方铁角蕨 A.×akaishiense | 无 Absent | 一至二回分裂 1-2-pinnatifid | 披针形 Oblong lanceolate | 1 | 无 Absent | 具齿 Lacerate | 1.0~4.0 | 细茎铁角蕨 A. tenuicaule | 无 Absent | 三至四回分裂 3-4-pinnatifid | 近三角状卵形 Narrowly triangular-ovate | 3 | 2 | 具齿 Lacerate | 1.0~2.0 | 过山蕨 A. ruprechtii | 有 Present | 不分裂 Simple | 线形或披针形 Linear or lanceolate | 无 Absent | 无 Absent | 全缘或波状 Entire or undulate | 1.5~4.0 |
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