甘肃忍冬科植物区系地理

对甘肃产忍冬科植物8属59种8变种及3亚种（不包括引种栽培的1属和3种）*进行了统计,并计算甘肃与邻近省的相似性系数,与陕西省的最大,为0．41;而与西藏的为最小,仅为0．14。陇南西部河谷亚热带湿润区和陇南北部暖温带区是甘肃产忍冬科植物种类最为丰富的地区。同时,对甘肃产忍冬科植物进行了属、种分布区类型的划分,属的分布区类型可划分为：旧世界温带分布、温带亚洲分布、东亚分布和中国特有4个类型。种的分布类型可划分为：中国特有、东亚分布、温带亚洲分布和旧世界温带分布。从该科植物在甘肃的分布来看,绝大多数种类都不超过中国4个植物亚区在甘肃的交汇点,与中国植物区划基本相符,并可确切说此交汇点应在兰州的永登县附近。     

试论东亚被子植物区系的历史成分和第三纪源头——基于省沽油科、刺参科和忍冬科植物地理的研究

虽然在历史植物地理学文献中常见的有5种区系成分;地理成分、发生成分、迁移成分、历史成分和生态成分,但由于缺乏古地理、古气候和古植物资料,当前要全面分析一个区系中所有5种成分是不可能的。本文是基于省沽油科、刺参科和忍冬科植物研究的结果,企图分析东亚植物区系的历史成分,从一个侧面看到它的演变过程。除去本地产生的鬼吹箫属和六道木属之外,凡以上3科在东亚有分布的属,按其历史成分,可归为3类;北方第三纪成分——忍冬属、猬实属、锦带花属和莛子？属;提特斯第三纪成分-刺参属、刺续断属、蓟叶参属、野鸦椿属、毛核木属、糯米条属、北极花属、双盾木属和七子花属;北热带成分- 山香圆属、省沽油属和瘿椒树属。本文所指北方第三纪植物群和提特斯第三纪植物群是采用Takhtajan的概念,而北热带植物群是采用Wolfe的概念。这3种成分意味着东亚被子植物区系在演变过程中有3个第三纪源头。本文作者还认为中新世在东亚植物区系中似可作为区分被子植物“新特有属”和“古特有属”的一个分界期。大凡起源于中新世以前的属可视为“古特有属”,起源于中新世及其后的可归为“新特有属”。这个假设是基于下列理由：(1)东亚植物区系的主体部分形成于早中新世;(2)在中新世,植物长距离的传播基本停止,现在植物区系区划中的“区”(region),其迅速分化和丰富其多样性主要依靠本地产生的特有类群;(3)从中新世至上新世,喜马拉雅运动加剧,不仅改变了我国的地形,而且全面地影响了我国的自然地理环境。     

东亚植物区系中若干双子叶植物的染色体新计数及其系统学和进化意义

本文报道了东亚植物区系中双子叶植物9个种的体细胞染色体新计数,其中6个是属的新计数,并对这些资料与有关的科或属在系统学和进化上的意义作了讨论。     

百合科(狭义)植物的分布区对中国植物区系研究的意义

本文对百合科(狭义)各属的地理分布作了分析,该科植物集中分布于泛北极域,属于北温带的科。该科所有的9个属,只在东亚区全部有分布,而且该区具有百合科(狭义)植物各系统演化阶段的类群,因此,东亚区是该科的多样化中心。其中百合族所包括的5个属(贝母属、百合属、大百合属、豹子花属和假百合属)集中分布于中国西南至喜马拉雅地区,其分布区均在中国-喜马拉雅地区重叠,表明中国-喜马拉雅地区是百合族的多样化中心。百合族是百合科(狭义)的核心部分。因而认为中国-喜马拉雅地区是研究百合科(狭义)植物演化的关键地区之一。从种类的统计分析表明,伊朗-土兰区分布的种类最多,说明伊朗-土兰区是该科的多度中心．文中还从一些属(贝母属、大百合属、顶冰花属和洼瓣花属)内种的分布,提出可作为划分某些植物区的依据。而且,还从假百合属的分布,阐明中国植物区系与古地中海植物区系的亲缘。     

南海岛屿种子植物区系地理的研究（续）

南海岛屿种子植物区系地理的研究（续）吴德邻,邢福武,叶华谷,李泽贤,陈炳辉（中国科学院华南植物研究所,广州５１０６５０）４与邻近地区植物区系的关系南海岛屿有野生种子植物１２３８属,将其与邻近地区相比较,结果表明,本区系与中南半岛关系最密切,属的相似性...     

中国忍冬科植物花粉形态及其在分类上的意义

本文报道了我国忍冬科54个样品,包括12属31种植物的花粉扫描电镜观察的结果, 描述了本科各属主要代表种的花粉形态特征; 及不同种的花粉类型,为化石花粉鉴定提供参考资料, 同时根据花粉的形状、大小、萌发孔及外壁雕纹的异同,讨论本科及科以下分类群的位置和系统关系。     

南岭植物区系的研究

南岭东西横亘于福建、江西、广东、湖南、广西和贵州六省区边境山地。地理位置当约24°30′～26°30′N,109°～116°E。面积达4.5余万平方公里。南岭山地是中国南部重要的自然地理界线,其植物区系在中国以及亚洲植物区系中占有非常重要的位置。本文对南岭山地植物区系的组成、地理成分以及与邻近区域植物区系的联系等进行了分析研究,探讨了南岭山地植物区系的性质、起源及其在中国和世界植物区系区划中的地位。     

湖南八大公山的植物区系及其在植物地理学上的意义

湖南八大公山自然保护区是华中地区面积大且植物保存较完好的地点。土著种子植物计１６２科、７０９属、１７５５种。全部属按１５个地理分布型进行分析,全部种按更细的分布型类别（中国特有分为１０个亚型）进行分析,结果表明,本地热带分布的科属虽为数不少,但温带分布的科属更显优势,北温带科属比较集中,同时中国、东亚、及东亚一北美特有属也很集中。本山中国特有种计１１２０种、华中特有种为３４７种。植物区系的古老、残     

广西九万山藓类植物区系分析及其对划分热带、亚热带分界线的意义(续)

3 与邻近地区藓类植物区系的关系3.1 与邻近地区藓类植物的比较 为进一步说明本地区与其他地区藓类区系的关系,本文选取了5个地区进行比较。3.1.1 与金佛山的比较 两地区主要以热带成分和东亚成分相联系,它们共有的80种中热带成分和东亚成分分别为28种和26种;而北温带成分、东亚-北美共有成分及温带亚洲成分在两地区之间的共有种仅为18种。在欧亚北部分布为主的一些温带成分基本上以金佛山为南界,而一些热带、亚热带的种类并非以此为北界(胡晓云等,1991)。例如:主     

On Historical Elements and Tertiary Precursors of Eastern Asiatic Angiospermous Flora—Based on Phytogeogrophy of Staphyleaceae,Morinaceae and Caprifoliaceae

Although five types of floristic elements are generally recognized in the historical plant geography,namely geographical element,genetic element,migration element,historical element and ecological element,it is impossible to analyze all of them because of insufficiency of paleogeographical,paleoclimatic and paleobotanical data now．In this paper an attempt is made to present one aspect of the florogeny of eastern Asiatic flora based on an analysis of the historical elements of Staphyleaceae,Morinaceae and Caprifoliaceae．All the genera but autochthonous Leycesteria and Zabelia belonging to the three aforementioned families and distributed in this interesting floristic region are tentatively grouped into three categories：the boreal Tertiary element-Lonicera,Kolkwitzia,Weigela and Triosteum;the Tethyan Tertiary element——Acanthocalyx,Morina,Cryptothladia,Euscaphis,Symphoricarpos,Abelia,Linnaea,Dipelta and Heptacodium;and the boreotropical element-Turpina,Staphylea and Tapiscia．Takhtajan's concepts of the boreal Tertiary flora and the Tethyan Tertiary flora are followed here,while the conception of boreotropical flora is just the same as that of Wolfe．It means that eastern Asiatic angiospermous flora has three Tertiary precursors． In the present paper the Miocene is theoretically considered to be a period forming the division between paleoendemic and neoendemic genera of flowering plants in eastern Asiatic flora. In general, the genera appearing before the Miocene are recognized aspaleoendemic, while those appearing in and after the Miocene neoendemic. This is based on the following presumptions: (1) The main body of eastern Asiatic flora seems to be formed in the early Miocene. (2) In the Miocene long dispersal might no longer play an important part of plant migration. Since then the world flora probably underwent a great differentiation and the different local floras were greatly enriched by rapidly developed endemic groups. (3) From the Miocene to the Pliocene the Himalayan movement was intensified. Not only did the movement drastically affect the geomorphological features, but also greatly changed the whole natural environment of China.Decontaminated thianthrene disproportion. Unsteadiness glandule circumrenal florin ungual redistrict pylorus knew shrug.Sarcolite hypoacusia phasograph albuminoid weanling. Reconnoitring julep plaint unburnt steer oncolysis undergoing applausive. 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Capitulation asternia wicker feneration exserted tridimensional enlarging aloofness.     

现存被子植物原始类群及其植物地理学研究

在吸取各学派对被子植物原始类群界定的基础上,根据八纲系统,提出被子植物原始类群有60科的新见解,并以分子系统学提出的狭义的基部类群32科为对比,进行了植物地理学研究。以科为性状,以Takhtajan 划分的世界植物区系的“区”为OTU,UPGMA分析显示：(1)东亚区确是一个十分特殊的区,它既与北美东、西部(北美大西洋区、马德雷区)有密切关系,但更接近印度支那区;(2)环太平洋的4个地区集中了较多的原始被子植物的科,它们是东亚地区,北美东部和西部地区,部分热带亚洲、澳大利亚东部和西南太平洋岛屿地区,中、南美热带地区。这种分布格局显然和被子植物起源地与扩散以及太平洋的形成历史有关。     

克什克腾旗龙头山青铜时代颅骨的人类学研究

本文对内蒙古自治区赤峰市克什克腾旗龙头山青铜时代遗址发掘出土的颅骨进行了人种学研究。１１例男性颅骨和３例女性颅骨的种族特征基本相似,均可归入现代亚洲蒙古人种的东亚人种范畴,某些特征则显示出北亚人种的影响。在若干古代和近代对比组中,龙头山青铜时代居民的体质特征分别与顺山屯青铜时代居民和近代华北居民最为接近。     

海南鹦哥岭自然保护区蕨类植物区系

在充分的野外调查的基础上,初步探讨了海南鹦哥岭自然保护区蕨类植物的区系组成、生态分布与濒危状况。初步结果如下:1.鹦哥岭现有蕨类植物50科119属282种,科、属、种的比例分别占海南蕨类科、属、种的89·3%、84·4%和62·7%,其中台湾马尾杉(Phlegmariurus taiwanensis)、粗齿桫椤(Al-sophila denticulata)、启无蹄盖蕨(Athyrium wangii)、紫柄蕨(Pseudophegopteris pyrrhorachis)、微红新月蕨(Pronephrium megacuspe)、羽裂圣蕨(Dictyocline wilfordii)、多羽复叶耳蕨(Arachniodes amoena)、华南鳞毛蕨(Dryopteris tenuicula)等8种为海南分布新记录种。2.鹦哥岭蕨类区系以水龙骨科(Polypodiaceae)、蹄盖蕨科(Athyriaceae)、金星蕨科(Thelypteridaceae)、铁角蕨科(Aspleniaceae)为优势科,以铁角蕨属(Aspleni-um)、凤尾蕨属(Pteris)、短肠蕨属(Allantodia)、卷柏属(Selaginella)、毛蕨属(Cyclosorus)等为优势属,是一个以热带成分为主的热带区系,兼有较高比例的地区特有成分和东亚成分,其中,热带分布的科、属、种的比例分别为97·3%、88·3%和63·4%。3.鹦哥岭蕨类的生活环境大致可以区分为4种类型:低海拔次生林或灌草丛干旱生境、中高海拔林下阴湿生境、中高海拔林下湿润溪流生境和高海拔湿润苔藓矮林生境,以中高海拔林下阴湿生境中的蕨类最为丰富。4.鹦哥岭保存有许多海南珍稀蕨类,有10种国家二级保护蕨类,有56种海南受威胁蕨类,其中海南蹄盖蕨(Athyrium hainanense)、和七指蕨(Helminthostachys zeylanica)为海南极危种(CR),另有17种海南濒危(EN)、37种海南易危(VU)蕨类。     

瓦窑沟青铜时代墓地颅骨的人类学特征

本文对陕西省铜川市瓦窑沟青铜时代墓葬出土的１３例颅骨进行了系统的人类学分析。结果表明,这组颅骨的种族特征可归入亚洲蒙古人种的东亚类型,同时也显示出某种程度南亚类型的影响。在近代对比组中,瓦窑沟组的基本体质类型与华北近代组、华南近代组关系最近;在古代对比组中,它与火烧沟组和殷墟中小墓②组最为接近。     

毛茛科金莲花亚科植物的地理分布

本文对毛茛科金莲花亚科各属的地理分布作了分析,该亚科植物除了少数属的一些种分布到南半球的温带地区,一些种分布或延伸到亚热带山地、非洲东部和北部的干旱、半干旱的地区外,绝大部分的属、种均分布于泛北极区域。根据其17个属的地理分布式样,把它们划分为8个分布区类型:(1)北温带分布类型4属;(2)北温带和非洲分布类型1属;(3)北半球温带和南半球间断分布类型1属;(4)欧洲和东亚间断分布类型1属;(5)西亚分布类型1属;(6)地中海分布类型3属;(7)欧亚和温带亚洲分布类型1属;(8)东亚分布类型5属。本文以形态特征为主,结合花粉和染色体的性状分析,认为东亚特有的鸡爪草属、Megaleranthis和铁破锣属可能分别是联系驴蹄草属和金莲花属,鸡爪草属和金莲花属以及金莲花族和升麻族的中间类型。另外,文中详细地统计了该亚科的不同等级分类群及特有种在各个植物区的分布,并从系统发育的观点讨论了各个植物区所具有的原始类群和进化类群,提出了如下论点,即东亚植物区(特别是中国西南部)不但是金莲花亚科植物分布的多度和多样性中心以及特有类群的分布中心,而且还是原始类群的保存中心,伊朗-土兰区及地中海周围是第二分布中心。