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作 者 ：李林初

期 刊 ：云南植物研究 1989年 11卷 02期 页码：1-3

关键词：柳杉属；水松属；落羽杉属；水杉属；巨杉属；红杉属；杉木属；密叶杉属；台湾杉属；金松属；

Keywords:Cryptomeria, Athrotaxis, Taiwania, Sciadopitys,

摘 要 ：根据杉科的核型资料，本文(1)提出“1B”可能是一个新的高等植物核型类型；(2)讨论了各属的有关分类学问题及相互亲缘关系，它们的进化顺序可能是柳杉属、水松属、落羽杉属、水杉属、巨杉属、红杉属、杉木属(密叶杉属与之近缘)、台湾杉属;(3)支持金松属分立成金松科，它可能比杉科各属原始;(4)红杉(AAAABB)的亲本可能是二个古代种水杉”和“巨杉”，它们的直接后裔或留下的近缘是水杉和巨杉;(5)杉科存在A和L两条进化路线，前者包括柳杉属、水松属、落羽杉属、台湾杉属，后者包括水杉属、巨杉属、红杉属、杉木属(密叶杉属)；(6)提出一个杉科新系统(包括一个新亚科)：I．柳杉亚科(柳杉属)，II．落羽杉亚科(水松属、落羽杉属),III．红杉亚科(冰杉属、巨杉属、红杉属)，Ⅳ.杉木亚科(杉木属、密叶杉属)，V．台湾杉亚科，新亚科(台湾杉属)。本文还对前人的杉科系统作了讨论。

Abstract:Taxodiaceae Warming consists of 19 species belonging to 9 genera (excl, Sciadopitys), of which 5 genera and 11 species are endemic to China and its neighbouring regions. The cytolpgical studies on the family were initia-ted in the early years of this century. To-date, karyotypic analyses for most of the genera(excl.Athrotaxis) have been made.The karyotypes of them:that of Cryptomeria,Glyptostrobus,Taxodium(T. mucronatum, "2A"), Metase-quoia and Sequoia semperuirens-AA belong to Stebbins‘ (1971) "1A" type of karyotypic asymmetry; that of Sequoiadendron, Cunninghamia and Sequoia semperuirens-B to "1B"; Taiwania to"2B".The type "1B" may be a new one in higher plants beacause it has not been found (Stebbins 1971).

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