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1.
中国鹅鸡草属的分类研究   总被引:15,自引:1,他引:14  
本对中国鹅观草属Roegneria进行分类修订,提出了一个新的分类系统。新系统包括19个新组合成新等级,并按照颖分组、荒分系的原则确认了中国该属植物4组、18系、79种、22变种,其中包括7新系、5新种和1新变种。此外,一些类群的省级分布新记录在本作了报道。  相似文献   

2.
中国灯心草属植物的研究   总被引:8,自引:0,他引:8  
本文通过对国产灯心草属植物的研究,提出了一个中国灯心草属分类系统排列,首次确认我国产6亚属,14组(包括10个新组),4个系(包括3个新系),77种(包括14个新种),l亚种(新亚种)和10变种(包括4个新变种),对其中一些种类作了归并及处理。  相似文献   

3.
中国虎耳草属的研究   总被引:1,自引:0,他引:1  
本文提出了一个中国虎耳草属系统,确认我国有2亚属,8组,7亚组(包括1新亚组),31系(包括23新系),4亚系(新亚系)和203种(包括2新种和4新变种)。  相似文献   

4.
东亚和南亚马兜铃属的修订   总被引:5,自引:3,他引:2  
本文通过对东亚和南亚马兜铃属的研究,修改了马兜铃属的分类系统,补充论证了演化趋势;并 在分析该属地理分布的基础上提出马兜铃属分布与分化的第二个中心——中国的横断山区。 本文确认2亚属、7组、4系、68种和1变种,其中有3新组、2新种及13个新异名。  相似文献   

5.
孙必兴  王松 《植物研究》1990,10(4):13-20
在禾本科植物编志工作中,我们先后订正了一些族、属和种的分类学问题,发现了不少新植物和一些在我国境内首次记录的种。本文只报道云南虉草族的各分类群,包括茅香属1种,黄花茅属4种1变种,其中1个是新种,1个是新变种,1种是中国新记录,虉草属3种及1变种,其中2种是中国新记录。  相似文献   

6.
中国蔷薇科植物分类之研究(三)   总被引:2,自引:0,他引:2  
作者在参加编写中国植物志过程中,研究了本所和国内各大标本室保存的近50年的标本,发现在蔷薇属中有7新种、9新变种和4新变型,在制定分类系统中增加了7新系。现将各组系特点及各新种、新变种和新变型的原始记载描述如下,并附分种检索表,其系统排列按照中国植物志37卷本属的顺序。  相似文献   

7.
中国黄杨属植物数量分类的研究   总被引:8,自引:0,他引:8  
本文采用系统聚类分析方法对中国黄杨属植物20种、3亚种和2变种进行了分类学研究,研究结果表明:营养器官的32个特征性状、繁殖器官的35个特征性状和总的67个特征性状的系统聚类结果与该属植物形态分类结果相吻合,从而为该属植物新分类群的建立,种、亚种和变种的鉴定以及某些划分不合理的种群纠正提供了一种新的科学依据和手段。  相似文献   

8.
中国金合欢属植物的分类,分布及其区系的起源   总被引:8,自引:1,他引:7  
孙航  陈介 《云南植物研究》1990,12(3):255-268
本文对中国金合欢属(Acacia Miller)的分类、分布及其区系的起源进行了初步的研究;初步确立了本地区金合欢属植物约13种,3变种,其中包括2个新记录种,2个新变种;它们主要分布在西南及华南热带亚热带地区,尤以云南为最多。中国的金合欢届种类较贫乏,主要属Subgen. Aculeiferum,且几乎都是较原始的“A. pennata”体态,大都处于其分布区的边缘,种间关系较密切,区系比较年轻。该区系是中南半岛金合欢区系的一部分,除Subgen. Heterophyllum是来自澳洲外,其余最终通过印度板块来自非洲。  相似文献   

9.
吴兆洪 《植物研究》1989,9(2):79-95
在编写中国植物志第四卷铁角蕨属的过程中,发现了一些新分类群,现经整理予以报道。本文发表了中国铁角蕨属的分类系统及15新种,1新变种。  相似文献   

10.
王文采 《广西植物》2019,39(11):1425-1469
该文对中国毛茛科(Ranunculaceae)翠雀花属(Delphinium)进行了修订,收载了该属232种和55变种,并写出了检索表;同时对每个种写出了形态描述,绘出了多幅墨线图,并将全部种划分为2亚属、5组、11亚组和26系,其中包括4新亚组、11新系、15新种和5新变种。此外,还给出了此属的分类学研究简史、地理分布和经济用途。  相似文献   

11.
中国鳞毛蕨属泡鳞亚属的分类研究   总被引:2,自引:0,他引:2  
陆树刚   《广西植物》1999,19(2):105-118
鳞毛蕨属DryopterisAdans.泡鳞亚属SubgenusErythrovariae(H.Ito)Fraser-JenkinsinBul.Br.Mus.Nat.Hist.Bot.14(3):195.1986.Type:Dryopterisery...  相似文献   

12.
中国葡萄属(Vitis L.)的系统研究   总被引:8,自引:0,他引:8  
对中国葡萄属(Vitis L.)的系统学进行处理。中国葡萄属共分42种1亚种12变种,归属于1亚属5组4系。文中命名了3新组(小叶葡萄组、秋葡萄组和武汉葡萄组)、2新等级及组合组(毛葡萄组和河岸葡萄组)、3新系(密柔毛系、复叶系、刺状毛系)、1新变种(伏牛山葡萄)和1新组合变种(小叶葛Lai)。  相似文献   

13.
The genus Gaultheria has been classified into ten sections (one with two subsections) and 22 series of which five are new combinations and 21 are new taxa. Seven of these sections are composed primarily of solitary flowered species and the other three sections of racemose species. About half of the species of the genus are included in section Brossaea. A summary of the classification is here presented.  相似文献   

14.
The genus Dichocarpum was established by W. T. Wang and Hsiao in 1964, who divided the genus into 2 sections: Sect. Dichocarpum including 10 species distributed on the mainland of E. Asia, and Sect. Hutchinsonia including 9 species native to Japan. M. Tamura and L. A. Lauener made a revision of the genus in 1968, who divided the genus into 4 sections, three for the species of the mainland of E. Asia, including 3 series and 10 species, and the other for the species of Japan, including 2 subsections, 3 series and 9 species. In the present paper, the genus is divided into 2 sections and 6 series, including 15 species and 3 varieties, and a putative phylogeny of the genus is proposed. The genus may be close to the genus Asteropyrum, and these two genera are rather specialized in Thalictroides (Ranunculaceae), because they have three very similar characters: the petal with a long claw, the stephanocolpate pollen and the chromosome morphology. The genus has 2n=24, 35(36?), which indicates that its basic number is X=6, and the species on the mainland of E. Asia (Sect. Dichocarpum) may well be paleotetraploids, whereas those in Japan (sect. Hutchinsonia) are paleohexaploids. Most of the advanced species are distributed in Japan and the most primitive ones in China and the Himalayas, the distribution pattern seggests that the Japanese members of this genus might have immigrated from China in the Tertiary, and differentiated and evolved there. The putative phylogeny of the genus is shown in Fig. 2 (at series level)  相似文献   

15.
青海柳属植物地理分布及其区系特点   总被引:1,自引:0,他引:1  
通过野外调查和查阅大量标本及文献资料,对青海省柳属(SalixL.)植物地理分布和区系特征进行了研究。青海产柳属植物多达45种(含种以下5变种、1变型),隶属15个组(Sect.),分别占青藏高原组、种的100%、40.9%和我国组、种的40.5%、17.5%,居我国第4位。青海柳属植物主要分布于青海东部,包括祁连山系东段和青南高原东南部,垂直分布集中于海拔2000~4000m,是世界柳属植物海拔分布最高的地区之一。青海柳属植物区系特征表现在:(1)种类丰富;(2)多型性突出;(3)地理成分较复杂,以欧亚大陆温带分布成分和青藏高原分布成分为主,中国特有分布占有一定的地位;(4)特有现象不明显,仅占青海种数的8.9%;(5)两雄蕊或单雄蕊的进化类群占绝对优势,占青海种数的93.3%。青海柳属植物与邻近的东部(甘肃东部、陕西)和东南部(四川西部、西藏东部)地区联系密切。由于第三纪以来喜马拉雅和青藏高原不断抬升,形成了适应高寒和干旱环境的青海柳属植物的分布与区系特征。  相似文献   

16.
中国猪屎豆属的分类问题   总被引:1,自引:0,他引:1  
杨纯瑜 《植物研究》1983,3(4):87-117
猪屎豆属(野百合属)根据A.Engler的分类属豆科(Legumino-sae)蝶形花亚科(Subfam.Papilionoideae)染料木族(Trib.Genisteae)猪屎豆亚族(Subtrib.Crotalarinae)的成员。本属与该族的黄雀儿属(Priotropis)、罗顿豆属(Lotononis)近缘(详见下),建于1753年,其命名模式为Crotalaria lotifolia Linn.)。  相似文献   

17.
The genus Swertia is one of the large genera in Gentianaceae, including 154 species, 16 series and 11 sections. It is disjunctly distributed in Europe, Asia, Africa and N. America, but entirely absent from Oceania and S. America. According to Takhtajan’s (1978) regionalization of the world flora, Swertia is found in 14 regions. Eastern Asiatic region with 86 species, of which 58 are local endemics, 13 series and 9 sections, ranks the first among all the regions. The highest concentration of the taxa and endemics in Eastern Asiatic region occurs in SW China-Himalayan area (Sikang-Yunnan P. , W. Sichuan, W. Yunnan-Guichou Plateau of China and NE. Burma, N. Burmense P. , E. Himalayan P. and Khasi-Manipur P. ). In this area there are 74 species (48 endemics), 12 series, and 9 sections; thus about half species of the world total, three quarters of series and 82% of sections occur in this small area. Besides, the taxa at different evolutionary stages in Swertia also survive here. It is an indication that SW. China-Himalayan area is a major distribution centre of the genus Swertia. In addition, Sudan-Zambezian Region in Africa, with 22 species, 4 series and 2 sections, is a second distribution centre. The primitive type of the genus Swertia is Sect. Rugosa which consists of 2 series and 23 species. It is highly centred in the mountains of SW. China (Yunnan, Sichuan, Guizhou and SE. Xizang) where 2 series and 16 species occur. Among them 15 species of Ser. Rugosae were considered as the most primitive groups in this genus. From our study, the outgroup of Swertia is the genus Latouchea Frahch. , which is distributed in Yunnan, Sichuan, Guizhou, Hunan, Guangdong, Guangxi and Fujian. The two groups overlap in distribution in SW. China. According to the principle of common origin, the ancestor of two genera ap peared most probably in this overlapping area. It was inferred that SW. China Was the birth-place of the genus Swertia. Four sections of Swertia have different disjunct distribution patterns: Sect. Ophelia is of Tropic Asia, Africa and Madagascar disjunct distribution; sect. Swertia is of north temperate distribution; sect. Spinosisemina is in Tropical Asia (Trop. India to S. China and Philipines); sect. Platynema also is in Tropical Asia (Java, Sumatra, Himalayas to SW. China). These disjunct patterns indicate that the Swertia floras between the continents or between continent and islands have a connection with each other. From paleogeographical analysis, Swertia plants dispersed to Madagascar before the Late Cretaceous, to SE. Asian Islands in the Pleistocene, to North America in the Miocene. The distribution of Swertia in Madagascar might be later than that in Asia. Therefore the origin time of the genus Swertia was at least not later than the Late Cretaceous, and might be back to the Mid-Cretaceous. The genus Swertia first fully developed and differentiated, forming some taxa at different evolutionary stages (Rugosa, Swertia, Poephila, Ophelia and Platynema etc. ) in the original area, and these taxa quickly dispersed in certain directions during the Late Cretaceous-Middle Tertiary when the global climate was warm and no much change. There seem to be three main dispersal routes from the origin area to different continents; (1) The westward route i. e. from SW. China, along the Himalayas area to Kashmir, Pakistan, Afghanistan and Iran, and then southwestwards into Africa throuth Arabia. Four sections (Poephila, Macranthos, Kingdon-Wardia and Ophelia) took this dispersal route. Most species of sect. Ophelia dispersed along this route, but a few along southern route and north ern route. Sect. Ophelia greatly differentiated in Africa and the African endemic sectionSect. Montana was derived from it. The two sections form there a second distribution center of Swertia. (2) The southward route, i. e. towards S. India through the Himalayas, and towards SE. Asian islands through C. and S. China, Indo-China. Along this dispersal route sect. Platynema, Sect. Spinosisemina and a few species of Sect. Ophelia dispersed; (3) The northward rout, i. e. northwards across N. China, C. Asia to a high latitude of Euasia, and also through E. Asia into N. America. The following groups took this route: sect. Rugosa, sect. Swertia, sect. Frasera, sect. Heteranthos and sect. Ophelia ser. Dichotomae. Therefore, it seems that the genus Swertia originated in SW. China and then dispersed from there to N. and S. Asia, Africa, Europe and North America and formed the moderndistribution pattern of this genus.  相似文献   

18.
Dichroa Lour., a small genus of Saxifragaceae, contains about 12 species, ranging from the mainland of S. E. Asia southward to Pacific islands. But most of the species are more restricted in distribution. Of the 12 recognized species, six are known from South China and Indochina; three are confined to west and northwest New Guinea; two are endemic to the Phillipines. Only one species is widely distributed in S. E. Asia. In the present paper, the genus is divided into two sections and two series based on the number of stamens and the characteristics of the ovary. One species is described as new.  相似文献   

19.
The first classification for the genus Ormosia was proposed by Bentham. It was followed by Taubert (1892) in Engler and Prantl’s Nat. Pflanzenf., who divided the genus into 2 sections. On the basis of the pod structure and seed characters Prain (1900) arranged the genus in 2 sections with 4 subsections. In the monograph on the genus Merrill and L. Chen ( 1943 ) limited their taxonomic study to Chinese and Indo-Chinese species, and recognized 34 species and 15 series. Recently Yakovlev (1971-1976) has treated the genus in 6 separate genera. In the present paper the author recognizes 35 species, of which 7 species and 2 varieties are new. The Chinese species of the genus are grouped into 3 sections and 6 series inmy classification.  相似文献   

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