植物研究 ›› 1993, Vol. 13 ›› Issue (4): 404-411.
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李楠
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Li Nan
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摘要： 本文对黄杉属的分类进行了整理, 共2组、6种、1变种:黄杉组, 计5种, 花旗松组, 1种, 1变种。前者为典型的"东亚——北美间断分布"类型。后者为北美西部特有分布, 作者在分析和探讨本属地理分布、边缘种替代规律的同时。结合有关细胞学和古植物学资料提出:1.黄杉组是原始类群, 花旗松组系由黄杉组经[12]对染色体发生结构重组而产生的进化类群;2.黄杉属是环太平洋植物系发展起来的属。可能起源于东亚。而北美西部则是本属的发展中心。
关键词: 黄杉属, 分类, 植物地理, 起源
Abstract: The present paper deals with the studies of taxonomic treatments, phytogeography and origin of the genus Pseudotsuga Carr. 2 sections, 6species and 1 variety have been accepted. Sect. Sina involves 5 species: P. forrestii, P. brevifolia, P.sinensis, P. japonicc, P. macrocarpa;while.Sect. Pseudotsuga is provided only with 1 species and 1 variety: P.menziesii, P. menziesii var. glauca. The first section covers a typical areaof "E. Asia & N。America disjuncted", and the second one is endemicto western N. America. Geograpic distribution of the genus and vicariouspattern of affinis species are discussed, by means of the related datafrom cytology and paleobotany, the following proposals are presented:1.Sect. Sina is a primitive group, Sect. Pseudotsuga is an advanced one, which may be originated from an ancestral Sina group for its 12 pairsof chromosomes happened to be reanged;2。Pseudotsuga might be a genusdeveloped in North Pacific Floristic area, and originated in E. Asia, while western N. America can be regarded as a developing center of the genus.
Key words: Pseudotsuga, Taxonomy, Phytogeography, Origin
李楠. 黄杉属植物地理学的研究[J]. 植物研究, 1993, 13(4): 404-411.
Li Nan. PHYTOGEOGRAPHIC STUDIES ON THE GENUS PSEUDOTSUGA[J]. Bulletin of Botanical Research, 1993, 13(4): 404-411.
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