| 河南秃疮花属一新种及其核型 |
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| 引用本文： | 吴立宏,王遂义.河南秃疮花属一新种及其核型[J].河南科技大学学报(农学版),1997(1). |
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| 作者姓名： | 吴立宏 王遂义 |
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| 作者单位： | 洛阳农专农学系(吴立宏)，河南农大农学院(王遂义) |
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| 摘 要： | 本文发表了河南产秃疮花属一新种,河南秃疮花Dicranostigma henanensis S.Y.Wang et L.H.Wu。分析了该新种的核型,其核型公式为K(2n)=2x=12=6m(2SAT) 2sm 2st 2T。第一对染色体具随体,有时不明显。核型的不对称性为2B型。
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| 关 键 词： | 秃疮花属 新种 河南秃疮花 核型 |
A New Species of Dicranostigma form Henan and Its Karyotype |
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| Wu Lihong et al.A New Species of Dicranostigma form Henan and Its Karyotype[J].Journal of Luoyang Agricultural College,1997(1). |
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| Authors: | Wu Lihong |
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| Institution: | Wu Lihong et al |
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| Abstract: | The new species of Dicranostigma,D. henanensis S. Y. Wang et L. H. Wu,from Henan Provice is described in this paper. It is similar to D. leptopodum (Maxim)Feddle,but differs from the latter by the numbers of stems (reaching to 80cm high) varying from 8 to 40,the length of leaves reaching to 29cm, petals varying from 1. 5 to 2. 4cm,capsule from 7 to 15cm,and seeds 1mm long. It is also similar to D. iliensis C. Y. Wu, but the difference between them are that the stems are higher than latter,the sepals are covered with short pubescence and o-vary with tuberculate hairs,seeds are in ovoid form.The present paper also reports the karyotype of the new species. The kary-otypic formula was K(2n)=2x=12=6m(2SAT) 2sm 2st 2T.One pair of satelites was located in the first pair of chromosomes. Under normal conditions, only one satelite was found clearly,sometimes all of them were not found clearly. The karyotypic asymmetry belongs to Stebbins'2B type. |
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| Keywords: | Dicranostigma New species D henanensis Karyotype |
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