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Two new species of bamboo, Dendrocalamus ovatus Xia et Chia and D.textilis Xia, Chia et C. Y. Xia, collected from southwestern China aredescribed. 相似文献
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在对竹亚科散生竹全面研究基础上,本文对酸竹属进行了系统的整理和研究,讨论了本属与相近属之间亲缘和区别。本文确认有6种,其中有1新组合和5个新异名。 相似文献
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本文通过对本属研究历史、形态特征和各类标本的系统研究,确认了M . compactilorus命名模式在中国有分布,发表了2个新种,M . scandens Hsueh et Hui和M . fimbriatus Hsueh et Hui编制了分种检索表。 相似文献
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Shibataea Makino is a genus of Subfam. Bambusoideae, with 8 species, distributedin Southeast China and Southwest Japan. In China wild plants of the genus are found inFujian, Jiangxi, Zhejiang, Jiangsu and Anhui provinces, especially in Fujian and Zhejiang.The genus is also cultivated in parks of Guangzhou, Teibei and some other gardens. Raches of inflorescences in genera Semiarundinaria, Brachystachyum, Phyllostachys andShibataea have many branches, even secondary branches. A large bract is often present at thebase of each branch, and a prophyll in the axil of the bract in Tribe Shibataeeae Nakai. Mo-reover, an inflorescence is composed of numerous dense spikelets. This type of inflorescencemay be considered primitive. The genera Indosasa and Sinobambusa are of more stamens (6in the former and 3 or 4, 5 in the latter) than in the genera Semiarundinaria and Brachysta-chyum (only 3), and their inflorescences are very simple with fewer spikelets and raches,without the large bract. This type of inflorescence may be considered more advanced. 相似文献
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将异枝竹属Metasasa W.T. Lin作为酸竹属Acidosasa C.D.Chu et C.S.Chao ex Keng f.的异名处理。异枝竹Metasasa carinata W.T. Lin和白环异枝竹 Metasasa albo-farinosa W.T.Lin作为新组合名Aci-dosasa nanunica(McCl.)C.S.Chao et G.Y.Yang,comb.nov.的异名。 相似文献
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根据我们对国产百合属(Lilium)引种植物花粉形态的观察,已知该属有二个分类群具四合花粉, 本文依据花粉形态、外部形态及地理分布的特点,对其分类问题进行了讨论。 相似文献
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Paphiopedilum malipoense S. C. Chen et Tsi is a very interesting new species with its flower similar to that of Cypripedium, especially section Cypripedium. It belongsto subgenus Brachypetalum, the most primitive group of Paphiopedilum, but differs fromits allied species in hgniva elliptic-lanceolate sepal with cuspidately acuminate apex, rathernarrow petals and horizontal lip, which are of common occurrence in many cypripediums, butvery rare in paphiopedilums. Apparently, this is an intermediate form, or a link, betweenPaphiopedilum and Cypripedium, but it does not seem to arise from hybridization betweenthem, because no Cypripedium has been found wherever Paphiopedilum occurs. The new species is distributed in southeastern Yunnan of China. In this area, as wellas in river valleys of western Yunnan or the Hengduan Mountains, there have been fourspecies of the same genus reported before. As we know, the Hengduan Mountains and theiradjacent areas are rich in Cypripedium. The differentiation of the genus there is remarka-ble. All five sections it contains occur there and three of them are quite distinctive. Forexample, the general appearance of the section Bracleosa is dissimilar to that of any othercypripediums, but closely resembles that of Listera. It appears that the difference betweensect. Bracteosa of Cypripedium and sect. Brachypetalum of Paphiopedilum is not neces-sarily wider than that between sect. Bracteosa and sect. Cypripedium of the same genus.Apparently, it is reasonable to consider Paphiopedilum to be an evolutional branch of Cy-pripedium extending into tropical area, with its primitive group (subgenus Brachypetalum)still remaining in its northern fringe area. This primitive subgenus has eight species, dis-tributed from western Yunnan to the Malay Peninsula. Five of them, including the inter-mediate and primitive form published here, are found in the hilly land of southeastern Yun-nan and the river valleys of western Yunnan. All these facts suggest its area of origin: theriver valleys of the Hengduan Mountains and the lower hilly land contiguous to the southof them. 相似文献
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对于宫廷雅乐的研究由来已久,但在研究中对雅乐的广义与狭义的关注却不甚严密.本文通过对广义与狭义两个不同范畴的雅乐在历史的传承中所表现的变与不变之因素的探讨,从而在宏观上对该问题作相应的澄清. 相似文献
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着重讨论整群环的K1群的计算,问题的关键点在于其对应的SK1群的计算,其中,p群的整群环的SK1群的结果是已知的.讨论了计算SK1群的基本理论,并证明了一类特殊的非p群(p1q1阶群)的整群环的SK1群是平凡的. 相似文献
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对任意有限群G的整群环ZG,设Δn(G)是ZG的n次增广理想,记Qn(G)=Δn(G)/Δn 1(G)为G的增广商群.本文给出了Qn(G)的一组与G的Sylowp-子群相关的生成元,并且在利用这组生成元和已有结果的基础上对二面体群D2tk(k奇)之增广商群Qn(D2tk)的结构进行了讨论,证明了Qn(D2tk)Qn(D2t). 相似文献
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黄欣荣 《科学技术与辩证法》2010,27(1):27-32
复杂性科学主要从方法论上进行了一场革命,举起了超越还原论的大旗。但是,超越还原论并不等同于走向传统的整体论,而是需要融合还原论和整体论的新方法论,这就是融贯方法论。融贯思维和融贯方法论要求我们要发挥还原论和整体论的长处,克服其缺陷,在整体的观照下分析,在分析的基础上综合,在还原和综合之间保持必要的张力。钱学森的综合集成方法论和欧阳莹之的综合微观分析方法论为我们提供了融贯方法论的两种尝试。复杂性科学超越还原论之后不是复归整体论而是走向融贯论。 相似文献
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张昱 《科学技术与辩证法》2011,28(1):15-20
作为科学方法论的语境论具有方法论的横断性,从认识科学的建构性的视角看,既可以为澄清科学与哲学概念的差异提供依据,又为科学理论的逻辑连贯性提供保障,更为不同学科的理论的对话提供平台。 相似文献
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团体辅导是一种专业的助人技术,随着社会发展,应用在越来越多的领域,这就需要培养相应具有团体带领能力的专业人员。本研究以一项团体领导者培训项目为例,呈现了从团体辅导基础知识、团体辅导理论、团体实际操作等方面综合对团体领导者进行培训的方法。研究对参加团体辅导培训的成员进行了问卷调查,对主观反馈以及问卷测量结果进行量化分析,表明团体辅导培训具有显著效果。同时,从美国等国家和地区对团体领导者的认证标准讨论了我国团体领导者培训进一步发展的方向。 相似文献
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研究的目的是检验变革型领导对团队建言氛围的预测作用,建言氛围在变革型领导与团队绩效之间的中介作用,以及创新氛围对变革型领导和团队建言氛围的调节作用。对63个工作团队的63名团队领导和283名团队成员进行了研究。结果发现,变革型领导对团队建言氛围有显著正向影响;团队建言氛围与团队绩效显著正相关,而且团队建言氛围中介变革型领导与团队绩效之间的关系;同时,团队创新氛围调节变革型领导与团队建言氛围之间的关系,团队创新氛围水平越高,变革型领导与团队建言氛围之间的关系越强;变革型领导与团队创新氛围的交互作用通过团队建言氛围影响团队绩效。 相似文献
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埃德加·莫兰复杂性思想述评 总被引:1,自引:0,他引:1
法国哲学家埃德加.莫兰提出的"复杂范式"是对简单范式的补充和整合,他期望能用一种复杂的、动态的、开放的理性主义代替简单的、静止的、封闭的理性主义。"复杂范式"以系统论、控制论、信息论的原理为基础,以自组织思想为中梁,以复杂性思维的基本原则为顶端,构筑了一个科学理论的大厦。 相似文献
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关于人才需求预测研究的几点方法论思考 总被引:7,自引:0,他引:7
本文结合新形势的发展需要,从预测模块设计、预测模型选择,预测时间跨度和人才界定方案四个方面,对人才需求预测的方法论进行了探讨,并对改进我国的人才预测研究提出若干建议。 相似文献