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1.
在为编写《Flora of China》伞形科而进行的修订工作中,提出了11个新组合,即矮小丝瓣芹Acronema minus (M. F. Watson) M. F. Watson & Z. H. Pan, 短柄丝瓣芹A. brevipedicellatum Z. H. Pan & M. F. Watson, 川西当归Angelica sinensis var. wilsonii (H. Wolff) Z. H. Pan & M. F. Watson, 云南细裂芹Harrysmithia franchetii (M. Hiroe) M. L. Sheh, 钝叶独活Heracleum candicans var. obtusifolium (Wall. ex DC.) F. T. Pu & M. F. Watson, 中华天胡荽Hydrocotyle hookeri ssp. chinensis (Dunn ex R. H. Shan & S. L. Liou) M. F. Watson & M. L. Sheh, 普渡天胡荽H. hookeri ssp. handelii (H. Wolff) M. F. Watson & M. L. Sheh, 锐棱岩风Libanotis grubovii (V. M. Vinogradova) M. L. Sheh & M. F. Watson, 美脉藁本Ligusticum likiangense (H. Wolff) F. T. Pu & M. F. Watson和线叶藁本L. nematophyllum (Pimenov & Kljuykov) F. T. Pu & M. F. Watson, 无管藁本L. nullivittatum (K. T. Fu) F. T. Pu & M. F. Watson和二色棱子芹Pleurospermum bicolor (Franch.) C. Norman ex Z. H. Pan & M. F. Watson.; 发现了1个新种,即短柄丝瓣芹。此外,还为Pleurospermum govanianum var. bicolor Franch.指定了后选模式。  相似文献   

2.
中国绞股蓝属(葫芦科)的研究   总被引:2,自引:0,他引:2  
 The genus Gynostemma B1. consists of 13 species and 2 varieties in the whole world, among which 11 species and 2 varieties occur in China. They are distributed in S. Shaanxi and the southern part of the Yangtze River (including Taiwan province) in China and also in Korea, Japan, Sri Lanka, India and Malesia. Based on the characters and dehiscence of fruit, the genus Gynostemma B1. may be divided into two subgenera, i.e. Subgen. I. Gynostemma and Subgen. II. Trirostllum (Z. P. Wang et Q. Z. Xie) C. Y. Wu ct S. K. Chen, comb. nov.        1.  Subgenus Gynostemma. The fruits are baccate, globose, 3-umbonate and incorni culate on the apical side, indehiscent when mature. The style apex in female flower is bifid.       Type of subgenus: Gynostemma pentaphyllum (Thunb.) Mak.       This subgenus contains 8 species and 2 varieties in the world, among which 6 speci- es and 2 varieties occur in China, i.e.1.G. simplicifolium B1. (Yunnan, Hainan of Guang- dong); 2. G. laxum (Wall.) Cogn. (S. Yunnan, Hainan of Guangdong and Guangxi); 3. G. burmanicum King ex Chakr. (Yunnan), 3a. G. burmanicum var. molle C. Y. Wu (Yun- nan); 4. G. pentaphyllum (Thunb.) Mak. (S. Shaanxi and the soutern area of the Yangtze River of China), 4a. G. pentaphyllum (Thunb.) Mak. var. dasycarpum C. V. Wu (Yun- nan); 5. G. pubescens (Gagnep.) C. Y. Wu, st. nov. (Yunnan); 6. G. longipes C. Y. Wu, sp. nov. (endemic to China: Yunnan, Sichuan, Guizhou, Shaanxi and Guangxi).       2.  Subgenus Trirostellum (Z. P. Wang et Q. Z. Xie) C. Y. Wu et S. K. Chen, comb. nov.——Trirostellum Z. P. Wang et Q. Z. Xie in Acta Phytotaxonomia Sinica 19 (4): 483. 1981, syn. nov. The fruit are capsules, subcampanulate, 3-corniculate on the apical side, dehiscent when mature. The style apex in female flower is luniform and irregularly denticulate at margin, rarely bifid.       Type of subgenus: Gynostemma cardiospermum Cogn. ex Oliv.      This subgenus comprises 5 species, which are all endemic to China.  1. G. yixingense (Z. P. Wang et Q. Z. Xie) C. Y. Wu et S. K. Chen (Jiangsu and Zhejiang); 2. G. cardio spermum Cogn. ex Oliv. (Hubei, Shaanxi and Sichuan); 3. G. microspermum C. Y. Wu et S. K. Chen (S. Yunnan); 4. G. aggregatum C. Y. Wu et S. K. Chen (NW. Yunnan); 5. G.laxiflorum C. Y. Wu et S. K. Chen (Anhui).  相似文献   

3.
日本* 美国 3。32比利时 3 .20丹麦3 .511 .5,法国4 .92西德娜威英国2。29意大利弓.96l,667 .263 .4,国民收人实际 增长率10。l 4。03l,242 .781 .37l。040 .150。892 .411 .110 .600 .51l。18l。951 .170 .76投人因素所占总数0 .96劳动1 .312 .721 .120.弓90 .450.夕O4300 .830。410。96.0.791 .414 .48资本 (剩余因素)投人单位的产出 6 .160 1 .374l 2 .0363 l。96弓6 3 .687562705272剩余因素占国民收入总增长的% *日本系19日5一1966年的数字说明:本表系美国经济学家E.Denison研究所得。Denison所用的方法是‘剩余因素法’。所谓剩余因…  相似文献   

4.
1.在球面几何中,三角形内角和—A.等于180度B.小于180度C.大于180度D.可能大于,也可能小于180度2.下列关于献血的说法,正确的是—A.献血会对身体造成很大伤害B.献血对于肥胖症患者有一定好处C.献血不分老幼,都可以献D.献血对于心脏病患者有一定好处3.神奇的等离子推进器的燃料其实是—A.液态氢B.电C.太阳能D.惰性气体氙4.下列关于云计算的说法,错误的是—A.云计算不需要服务器B.云计算需要互联网支持C.云计算节省了电费D.云计算提高了设备使  相似文献   

5.
1IntroductionCrosslinkreferstochemicalbondingamongpeptidesandcollagen(gelatin)moleculesbyN-terminalgroups.Asearlyasthe1950s.J-Pouradieretal.lhadstartedaseries0fstudiesoncrossIinkofgelatinm0lecules-GraesserW2disc0veredthatonlylargepeptidessuchasa,P,Ycomponentstookpartinthecrosslinkprocess.Withtheincrease0flittlepeptides,therewouldbemoreH-bondsamongthemolecules.J.Rottmannetal.3thinkthattherearetwostepsduringthecrosslinkprocess:Therateofthefirststepismuchbiggerthanthat0fthesecondone.It'swell…  相似文献   

6.
I.TheTragediesofShakespeare1.1.AnAnalysisoftherolesinShakespeare’stragediesTake“Hamlet”asexamples:Hamletisaboutanemotionallyscarredyoungmantryingtoavengethemurderofhisfather,theking.TheghostofHamlet'sfatherappearstoHamlet,tellinghimthathewasmurderedbyhisbrother,Claudius,whohasnowbecometheking.ClaudiushasalsomarriedGertrude,theoldking'swidowandHamlet'smother.Hamletisappalledbyhismother'sactionsandbywhattheghosttellshimaboutClaudius'scold-bloodedmurderofhisownbrother.Tobuytimetoplothisr…  相似文献   

7.
中药贝母名实考订   总被引:1,自引:0,他引:1  
 Bei-mu (贝母), the bulbs of some fritillaries, is one of the most popular drugs used in China ever since the ancient times.  It is prescribed principally in coughs and fevers.  In recent years, although much chemical and pharmaceutical investiga- tions of this drug have been made, its botanical origin remains confused.  Several types of commercial drugs Bei-mu, for instance, were incorrectly considered by some authers as being derived from the bolbs of Fritillaria roylei Hook., a species of Kashmir and Kumaon, not yet found in China.  In the present paper, the writers attempt to give a revision of the genus Fritillaria of China as well as of commercial drugs sold on the chinese market under the name of Bei-mu, based on both plant and drug speci- mens collected from 18 provinces and autonomous regions.      As a result of our study, twenty species, including two varieties, of Fritillaria of China are recognized, of which four, F. crassicaulis S. C. Chen, F. omeiensis S. C. Chen, F. unibracteata Hsiao et K. C. Hsia and F. hupehensis Hsiao et K. C. Hsia, and one variety, P. thunbergii Miq. var. chekiangensis Hsiao et K. C. Hsia, are de- scribed as new.  They all, except two species, viz. F.  maximowiczii Freyn  and F. davidii Franch., are known to possess medicinal value, from which different kinds of commercial drugs Bei-mu are derived.  These drugs are usually named for the places where they come from.  The first, called Zhe-bei (浙贝), F. thunbergii Miq., is obtained from Chekiang and Kiangsu, the second, called Ping-bei (平贝), F. ussuriensis Maxim., from northeastern China, the third, called Lu-bei (炉贝), F. delavayi Franch., from southwestern China, the fourth, called Chuan-bei (川贝), including F. cirrhosa D. Don, F. unibracteata Hsiao et K. C. Hsia, F. przewalskii Maxim. etc., from Szechuan and its neighbouring provinces, and the fifth, called Yi-bei (伊贝), including F. pallidiflora Schrenk, F. karelinii (Fisch.) Baker, F. walujewii Rgl. etc., from Sinkiang. Occasio- nally, the tubers of Bolbostemma paniculatum (Maxim.) Franquet, the corms of Iphi- genia indica Kunth and the bulbs of Lloydia  tibetica  Baker  and  Cyanotis  vaga  (Lour.) Roem. et Schult. are also called Bei-mu in some local drug markets.  They are different not only in medicinal property but also in appearance from our tradi- tional genuine commercial drugs Bei-mu as stated above.  They are apparently adul- terants.       Detailed accounts about the plants and drugs are given in the text. There are also provided keys and illustrations which, we believe, will afford facilities for identifica- tion.  相似文献   

8.
 Paeonia suffruticosa Andrews subsp. spontanea (Rehder) S. G. Haw et L. A.  Lauener (  =P. spontanea = P. jishanensis) has been considered as the wild form of widely  cultivated P.  suffruticosa.  However,  the subspecies differs from the cultivated one in  shape, division and indumentum of leaves and reproductive biology. As a result of extensive  field work, a form with two individuals in Yinping Shan, Caohu, Anhui, and Songxian,  Henan, are found to be extremely similar to P. suffruticosa, but apparently different from  P. jishanensis. The form is considered to be the wild one of P. suffruticosa and described as new: P. suffruticosa subsp, yinpingmudan Hong, K. Y. Pan et Z. W. Xie.  相似文献   

9.
近年来,随着农村经济的发展,农民的生活居住环境得到了很大的改善,许多农家修建了漂亮的二层小楼,在楼顶修建了自来水塔,用上了自来水,时常要给水塔抽水,成了农家的一件日常工作,但时间久了,也难免感到挂心。为了解决这一问题,我利用简单机械和力学原理,设计了一种简易的自控抽水开关,现简介如下,供参考。1.电线2.铁片静触点3.带铁片磁铁4.铁片触点5.开关盒6.杠杆支点7.杠杆8.连杆9.小孔10.细绳11.浮力瓶12.小石子13.水塔14.进水管一、结构简图二、工作原理1.当水面下降时,浮力瓶随着下降,当水面降到某一高度,浮力瓶不再受到水的浮力,杠杆在…  相似文献   

10.
11.
开元礼赞     
翻开历史的篇章,开元.两个黄金铸就的字永不蒙尘.煌煌大唐,辉辉盛世.永是中华民族的骄傲.而今,在改革的大潮中,走来新一代开元人.开元——强者的代名词.开元集合着一群优秀的科技人才,有胆有识的管理人才.在高手如林的高科技产业开发中,交大开元人是勇于夺标的佼佼者.抓住历史的契机.雄踞高科技的前沿,走技工贸相结合的道路,开展多种经营,多方位、多元化发展.西安交大开元集团,以高新技术为中心,以科技成果转化为重点,窥测市场风云,开拓成功之路.  相似文献   

12.
正在进行局域导航遥控喷农药直升机路径规划方法研究过程中,涉及了伺服电机控制,因此对常见的P.I.D.和P.I.V伺服控制进行了试验分析,提出了在P.I.D.或P.I.V伺服控制基础上加上前馈控制是必要的方案。首先运用齐格勒-尼科尔整定方法或通过试验纠错方法对P.I.D和P.I.V.进行调优实验,通过仿真数据分析探索控制规律。在此数据建模分析的基础上增加前反馈控制,针对这一控制通过实验寻找最佳方案,  相似文献   

13.
Baolia Kung et G. L. Chu was established on the basis of B. bracteata Kung et G. L. Chu described in 1978 from Diebu County on the border between Gansu and Sichuan provin- ces.  It is placed in the tribe Chenopodieae in 《Flora Reipulicae Popularis   Sincae》, but considering its flowers with a bract and 2 bracteoles it is betwter transferred to the tribe Polv- cenmeae. So far the tribe Polycnemeae contains 4 genera in total, i.e. Nitrophila S. Wats. with 4 species, distributed in Southwestern US, Mexico and Argentina, Hemichroa R.  Br. with 3 species all in Australia, Polycnemum Dumort. with 4 species in Europe,   Mediterranean, Middle Asia to Siberia, Baolia Kung et G. L. Chu with 1 species, occurring in central China with a very limited area.  相似文献   

14.
 It is quite unreasonable reducing Elachanthemum Y. Ling et Y. R. Ling into Stilprolepis Krasch. and it is so wrong idea attributing the achenes and cupuliform corolla (as a matter of fact, the cupuliform corolla is originally from the Stilpnolepis Krasch.,  not from Elachanthemum Y. Ling et Y. R. Ling) of Elachanthemum Y. Ling et Y. R. Ling to “earlier Development” in the paper published in Act. Phytotax. Sin. 23(6): 470-472. 1985.      In Elachanthemum Y. Ling et Y. R. Ling, bracts of capitula herbaceous, obviously floccose on the abaxial surface and membranaceous only on the margin, corolla of bisexual florets tubu- lar, achenes oblique, obovoid, and the exine of pollen grains minutespinulate, but in Stilpnole- pis Krasch., on the contrary, whole bracts membranaceous, glabrous, corolla of hermaphrodite florets cupuliform or campanulate, achenes long-clavate or fuciform and the exine of pollen grains remarkably spiny.  相似文献   

15.
《知识窗》2009,(2)
1.你让我滚,我滚了.你让我回来,对不起,滚远了. 2.人怕出名猪怕壮,男怕没钱女怕胖. 3.开车无难事,只怕有新人!  相似文献   

16.
ⅠⅠ.IntroductionInthispaper,wetendtogiveananalysistoaspecialdiscourseasaninformalchattingthroughthephone.Numerousexpertshavecontributedtheirattentiontosomecharacterizeddiscourseasadvertisements,politics,newsbroadcasting,ordeathnewsspreadingorothers,otherthantelephonechatting.Thereasongiventothismaybeduetothesimplicityandcommonnessoftheinformalchatting,orresultsfromitssimilaritytodailytalkwhichhasbeenpaidmuchattentiontointhepastdecades.WhereasIthinkit’sjustthissimilaritybutnotsamenessthatcal…  相似文献   

17.
对实蕨属Bolbitis的17种植物的孢子进行了扫描电镜观察。根据孢子周壁特征,中国产实蕨属的孢子明显可分为3种类型:A型孢子具网状周壁,B型孢子具鸡冠状-波状周壁,C型孢子具平滑的波状周壁。孢子周壁特征、叶脉式样和叶片顶部的形态是实蕨属中最有价值的分类学性状。根据标本检查,结合野外调查和孢子形态观察,对中国产实蕨属的分类进行了修订,确定中国有实蕨属植物20种和3杂交种,其中包括2个新组合B. fengiana (Ching) S. Y. Dong和B. medogensis (Ching & S. K. Wu) S. Y. Dong,以及2个中国新分布B. costata Ching ex C. Chr.和B. hookeriana K. Iwats.。将B. latipinna Ching、B. media Ching & Chu H. Wang、B. yunnanensis Ching、Egenolfia crassifolia Ching、E. crenata Ching & P. S. Chiu、E. fengiana Ching、E. medogensis Ching & S. K. Wu和E. ×yunnanensis Ching & P. S. Chiu等8个名称处理为新异名。文中给出了分种检索表、每个种的生境和分布资料、大多数种的特征集要和孢子扫描电镜照片。  相似文献   

18.
正本期封面是意大利画家塞巴斯蒂安(Sebastiano del Piombo,c.1485—1547)的一幅男子肖像,现藏美国大都会博物馆。画中人头顶两旁的背景中,可以辨认出的两行金字是:HAEC.EST.EFFIGIES.LIGVRIS.MIRANDA.COLVMBI.ANTIPODVM.PRIMVS/RATE.QVI.PENETRAVIT.IN.ORBEM.1519,翻译出来为:"这是利古里亚人哥伦布令人赞叹的画像,他首次驾船驶入地球的对跖点,1519"。许多人认为这就是伟大航海家哥伦布(Christopher Columbus,c.1451—1506)的画像,COLVMBI是"哥伦布"这个姓氏众多异体中的一种;利古里亚在意大利西北部,南濒热那亚湾。许多关于哥伦布及地理大发现的书籍也都采用  相似文献   

19.
Those who live in gIass houses should not throw stones. 己所不欲,勿施于人. The glow of the setting sun is splendid.Pity is that the dusk fast approaching. 夕阳无限好,只是近黄昏. Achievement is founded on deligence and wasted upon reck lessness. 业精于勤,荒于嬉. If you live with a lame person,you will learn to limp. 近朱者赤,近墨者黑. The soldier faces the powder while the beauty powders the face.  相似文献   

20.
茗茶·墨香     
书是爱人,茶是情人.无书不成生活,无茶生活无味. 书是阳光,眼中金灿灿的一片;茶是月光,心中冷静静的一抹.书带来热情,茶带来自然. 爱书.爱茶.  相似文献   

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