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| 中国辽宁省始新世水杉的研究 | |
| 引用本文： | 刘艳菊 李承森. 中国辽宁省始新世水杉的研究[J]. Acta Botanica Sinica, 2000, 42(8): 873-878 |
| 作者姓名： | 刘艳菊 李承森 |
| 作者单位： | 中国科学院植物研究所!北京100093北京市物理化学分析测试中心，北京100089，中国科学院植物研究所!北京100093 |
| 基金项目： | 国家自然科学基金! ( 3 993 0 0 2 0，3 93 2 10 0 1，3 9770 0 5 4)，中国科学院重大项目! (BKZ95 1_B1_10 5，KZ95 1_B1_10 2 ) |
| 摘 要： | 以辽宁省抚顺早始新世古城子组和计军屯组的水杉（Ｍｅｔａｓｅｑｕｏｉａ Ｍｉｋｉ）为研究对象，对其雌球果、雄球花枝和营养枝叶的形态、叶表皮和雄球花苞片表皮的结构进行了研究分析，并与Ｍ．ｇｌｙｐｔｏｓｔｒｏｂｏｉｄｅｓ，Ｍ．ｏｃｃｉｄｅｎｔａｌｉｓ，Ｍ．ｍｉｌｌｅｒｉ的性状进行比较，认定其属于Ｍ．ｏｃｃｉｄｅｎｔａｌｉｓ。并没得Ｍ．ｇｌｙｐｔｏｓｔｒｏｂｏｉｄｅｓ和抚顺水杉叶下表皮气孔分布区内的平均气 |
| 关 键 词： | 辽宁抚顺 始新世 水杉 中国 |
On Metasequoia in Eocene Age from Liaoning Province of Northeast China |
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| LIU Yan_Ju ,,LI Cheng_Sen [WTBZ]. On Metasequoia in Eocene Age from Liaoning Province of Northeast China[J]. , 2000, 42(8): 873-878 | |
| Authors: | LIU Yan_Ju LI Cheng_Sen [WTBZ] |
| Affiliation: | LIU Yan_Ju 1,2,LI Cheng_Sen 2 [WT6BZ] |
| Abstract: | The fossil specimens of Metasequoia Miki, aged in early Eocene was collected from Guchengzi and Jijuntun Formations of Fushun, Liaoning Province, Northeast China. Female and male cones and nutricious shoots, together with leafy epidermis and epidermis of staminal bract were investigated and here by described in details. The specimens is attributed to M. occidentalis after comparing them with M. glyptostroboides, M. milleri and M. occidentalis , considering the characteristics of leaves, female and male cones, epidermal cells and stomata. The average stomatal density of M. glyptostroboides in the stomatal distributional regions is measured to be 183.85/mm 2, that of Fushun specimens 140.13/mm 2; the average stomatal index of M. glyptostroboides in the stomatal distributional regions is 10.79, that of Fushun specimens is 9.48. |
| Keywords: | Fushun of Liaoning Eocene Metasequoia occidentalis |
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