中国二叠纪苏铁科新属、种——古生铁花

本文是继中国始苏铁Primocycas chinensis Zhu  et  Du之后，又报道一种古植物文献未见记载的早二叠世晚期苏铁科小孢子叶球，命名为古生铁花(新属、种)Cycadostrobilus  paleozoicus  Zhu，gen. et.sp．nov．标本采自我国山西省太原市东山煤矿的下石盒子组，它是世界迄今已知的一种最古老的小孢子叶球化石。和本新属同层发现的化石，除了中国始苏铁之外，还有楔叶Sphenophyllum、齿叶Tingia，楔羊齿Sphenopteris、楔叶羊齿Sphenopteridium、织羊齿Emplectopteris、栉羊齿Pecopteris、大芦孢穗Macrostachya、科达Cordaites、带羊齿Taeniopteris、角籽Cornucarpus和几种也未见记载而形态又非常特殊的植物。本文认为当前报道的古生铁花(新属、种)很可能和中国始苏铁同属一种植物，其营养叶可能是疏脉带羊齿Taeniopteris norinii Halle。     

中国青藓科研究资料(Ⅱ)

根据Jos．Giraldi 1890至1896年在中国陕西省采集的青藓属标本13份,1896至1898年Carolo Mueller发表了青藓属的13个新种。笔者向佛罗伦萨大学植物标本馆借阅了上述类群的标本,其中主模式标本9份,等模式标本3份和由C.Mueller鉴定的标本1份。经过对这些标本逐一鉴定并进行形态性状的测量,本文订正了部分学名,提出了3个新异名,1个新组合。     

中国真藓属孢子形态的研究

 通过光学显微镜和扫描电子显微镜观察了中国真藓属Bryum Hedw．13种孢子的形态特征。根 据外壁纹饰可分为:类型I,棒状突起顶端圆钝;类型Ⅱ,棒状突起顶端尖或具微突起;类型Ⅲ,棒状突 起顶端膨大成半球形。根据孢子直径的大小,可分3个类群。以上显示了物种间的遗传分化及其相似 性,证明真藓属确为一个自然分类群,真藓属孢子的形态比丝瓜藓属Pohlia Hedw．进化。这给苔藓的孢子形态研究及分类和系统演化的研究提供了新的资料。     

西藏嵩草属（莎草科）的修订

在标本观察和野外调查的基础上，对西藏的嵩草属Kobresia植物进行了分类学修订，共确认了36种和1亚种。更正了6个类群的学名，它们正确的名称是K. esenbeckii，K. fissiglumis，K. gammiei，K. littledalei，K. myosuroides ssp. bistaminata和K. vaginosa。有13个名称，即K. angusta，K. cercostachys var. capillacea，K. clarkeana，K. curticeps var. gyirongensis，K. deasyi，K. glaucifolia，K. hookeri，K. nudicarpa，K. prainii var. elliptica，K. seticulmis，K. stenocarpa，K. stenocarpa var. simplex和K. williamsii处理为异名，其中K. prainii var. elliptica，K. glaucifolia和K. stenocarpa var. simplex为新异名。发现了西藏分布的一个新记录种密穗嵩草K. handel-mazzettii。还收录了最近发表的假钩状嵩草K. pseuduncinoides和阔鳞嵩草K. woodii。此外，重新编制了西藏嵩草属分种和亚种检索表，并较为详细地登记了各类群在西藏的分布地点。     

云南樟科油丹属一新种——黄连山油丹

报道了樟科油丹属一新种，即黄连山油丹Alseodaphne huanglianshanensis H. W. Li & Y. M. Shui。它产自中国云南东南部绿春县黄连山海拔840-1300 m的热带阔叶次生林中，在体态上与同一分布区内的云南油丹A. yunnanensis Kosterm.十分相似，但叶为长圆形或倒披针状长圆形(5-13×(0.8-)1.2-2.8 cm)，明显较狭，两面几无蜂窝穴，总梗及果梗无毛，密被灰白色小瘤而不同。该新种也与油丹A. hainanensis Merr. 相似，但叶长圆形至倒披针状长圆形，坚纸质，先端锐尖或渐尖，两面几无蜂窝穴，侧脉每侧7-8条，果梗长5-7 mm，密被灰白色条形的小瘤而不同。     

泰国茜草科粗叶木属植物的分类学研究

在详细检查了K，BM，E，P，AAU，L，KEP，BKF，BK，SING，PSU等标本馆馆藏茜草科粗叶本属Lasianthus Jack.植物标本基础上，研究了泰国产粗叶木属植物的分类学，共归并7个种名，建立3个新种，3 个新变种，1个新等级，以及8个泰国分布新记录种及8个泰国分布新记录变种，确认泰国共有粗叶木属植物52种，1亚种，12变种；讨论了易于混淆的种的界线、它们可能的亲缘关系以及识别要点。     

湖南轮藻新植物

本文报道了产自湖南省的轮藻1新种、4新变种、  5个亚洲新记录和8个中国新     记录：四盾轮藻Chara quadriscutula sp．nov., 布氏轮藻柱孢变种 C．braunii Gmelin var．     cylindrospora，var．nov., 松形轮藻湖南变种 C．hydropitys var．hunanensis，var．nov., 腋球丽     藻二型变种  Nitella axilliformis Imahori var．biformis  var．  nov．, 小果丽藻单果变种N．     microcarpa Braun var．unicarpa，var．nov．以及小果丽藻N．microcarpa Braun，细枝丽藻  N．     leptoclada Braun，安氏丽藻N．annandalei Pal，疏丝丽藻N.confervacea A  Braun, 细形丽     藻N．gracilliformis J. Groves，倒置丽藻N．inversa Imahori，武藏丽藻N.musashiensis Mo-     rioka，稀脊丽藻N．paucicostata T. F. Allen，尖头丽藻戈尔梅变种 N．  acuminata var．     gollmeriana(A．Br．)Zanev．＆ R．D. Wood，博尔德鸟巢藻Tolypella boldii Sawa，长枝轮     藻Chara longifolia Robinson，匹斯汀轮藻C．pistianensis J．Vilhelm 和格氏轮藻  C.grovesiiPal。     

中国大陆经济综合竞争力区域差异分析

本文以中国大陆31个省级行政区为研究对象,选取反映地区经济综合竞争力的17项重要指标,通过对原始数据的采集处理,运用人工神经网络（ANN）中的自组织映射网络（SOFM）及统计分析软件SPSS中的两种系统聚类分析方法对地区经济综合竞争力区域差异进行分类研究,最终将31个省、市、自治区的经济综合竞争力强弱划分为4类,即经济综合竞争力最强、经济综合竞争力较强、经济综合竞争力一般及经济综合竞争力较弱4类地区。研究表明：我国经济综合竞争力区域差异显著,主要表现为东部和中、西部及沿海和内地之间的差异。研究也表明运用人工神经网络和系统聚类分析方法进行分类研究可以相互检验分类结果,易于发现问题,提高分类的准确性,是一条具有发展和应用前景的途径。     

被子植物的一个“多系-多期-多域”新分类系统总览

这篇文章是作者在1998年发表的两篇文章的续篇。在那两篇文章中作者论述了关于被子植物系统发育和演化问题的基本观点：本提出木兰植物门(被子植物)的一个新分类系统纲要，将木兰植物门分为8纲40亚纲202目和572科；其中命名了22新亚纲(Annonidae，Illiciidae，Ceratophyllidae，Lauridae，Calycanthidae, Chloranthidae, Aristolochiidae，Polygonidae，Plumbaginidae，Bromeliidae，Zingiberidae，Juncidae, Poaidae，Paeoniidae，Papaveridae,Trochodendridae，Betulidae，Malvidae，Ericidae，Myrtidae，Rutidae，Geraniidae)和6新目(Degeneriales，Aizoales，Platanales, Dipentodontales，Meliosmales，Balanitales)。并对每个科所包含的属、种数和地理分布作了说明。     

法斗观音座莲——一个假定的属间杂交种

  Angiopteris sparsisora Ching, sp. nov.      Species nova ab omnibus affinibus adhuc cognitis recedit rhizomate repente, dorsi- ventrali, habitu minore stipite tenui, levi, paleis  brunneis  lineari-lanceolatis  margine irregulariter fimbriatis peltati-fixis, pinnulis basi cuneatis vel late cuneatis, distincte breviterque petiolulatis, soris longitudine variis, inter se separatis a margine magis re- motis, paraphysibus rudimentalibus brevibus sparse praesentibus.      Tota planta 1—1.2 m alata, rhizomate repente, carnoso, cylindrico, dorsiventrali, 5— 6 cm diametro, radicoso, apice frondes 2—3 emittente, stipite 35—70 cm longo, 4—8 mm crasso, levi viridi, supra medium uni-geniculato (in frondibus pinnatis usque subbipin- natis), paleis brunneis lineari-lanceolatis basi rotunda peltati-fixis margine varie fimb- riatis sparse vestito; lamina stipite longiore, bipinnata aut subb ipinnata raro superne simpliciter pinnata; pinnis 2—3(—7)-jugis, ,alternis vel suboppositis, oblongis, 45— 55 cm longis, 18—23 cm latis, petiolo 4—16 cm longo suffultis, basi tumidis, pinnatis vel interdum simplicibus vel basi pinnatifidis; pinnulis plerumque 8—12-jugis, alternis vel suboppositis, patentibus, 8—18 cm longis, medio 1.5—3cm latis, lanceolatis, acuminatis, basin versus cuneatis vel late cuneatis, breviter petiolatis, pinnula terminali confomi paulo majore, petiolulata, hasi baud in alas decurrente, margine serrulatis; venis utrin- quo distinctis, patentibus, simplicibus vel furcatis, prope marginem curvatis; pagina frondis textura in sicco virescente, chartacea, rachi, costis, costulis venisque subtus sparsim minuteque paleaceis.  Soris breviter linearibus, 2—4 mm longis,  10—32-spo- rangiatis, inter se separatis, a margine 2—3 mm, remotis; paraphysibus sparsis brevibusrudimentalibus.  Sporis globulosis, suparficie dense tubuculatis.       Yunnan austro-orientalis:  Xichou Xian, Fadou, S. K. Wu 4203 (typus, PE), 4198, 8, October, 1962; ibidem, Z. R. Wang 566-1, 566-2, 566-3, 566-4, 566-5, 15, January, 1978; ibidem V. M. Chu 8212, 15, January, 1978. in valley under evergreen broad- leaved forests, alt. 1500—1550m.       In the tropical rain forest in southeastern Yunnan, China, the members of Angiopte- ris Hoffm. and Archangiopteris Christ et Gies. are often growing side by side in great abundance.  In January 1978 the second writer made a botantical trip there and col- lected in one locality ample herbarium material of an Angiopteris, which is identical with A. sparsisora Ching (ined.), based upon type specimens gathered by Mr. S. K. Wu from the same locality in 1962.  To our great surprise, however, this distinct taxon reveals a number of important morphological characteristics intermediate between An- giopteris and Archangiopteris as diagnosed above.       The present species resembles Archangiopteris in small build with creeping dorsi- ventral rhizome, unigeniculate, thin, smooth stipe in pinnate to bipinnatifid fronds, spa- ringly clad in linear-lanceolate peltately affixed scales with variously fimbriate margin, lamina 1—2 pinnate or subbipinnate, pinnules distinctly and shortly stipitate, base cuneate or broadly cuneate, sori of different length separated from each other by broad spaces, and rather far away (2—3 mm) from the margin, paraphyses few, rudimentary and short, but, on the other hand, it also similar to Angiopteris in usually bipinnate fronds, the petiole of pinnae with swollen base (blackish upon drying), short (2—4 mm long) linear sori consisting of 5—16 pairs of sporangia and globulax spores with densely tubucular sporoderms.  All the above characteristics combined clearly indicate the spe- cies is in all likelihood a natural hybrid between  Angiopteris  and Archangiopteris, pending cytological investigation and the reason for presently placing it in Angiopteris rather than in Archangiopteris is because of the fact that in overall impression the newtaxon appears more like the former than the latter.     

Mutation Analyses in Selected Exons of the MUT Gene in Indian Patients with Methylmalonic Acidemia

Deficiency or diminished activity of a cobalamin dependent enzyme methylmalonyl-CoA mutase causes inborn error of metabolism called methylmalonic acidemia (MMA). In this study we elucidated the spectrum of mutations in 21 Indian mut MMA patients by direct sequencing. Sequence analysis identified a total of 70 mutations in exon 2, 9, 11 and 12 of MUT gene. Out of which 26 mutations were predicted to be deleterious and rest were benign. The 23 novel mutations consist of four nonsense mutations (p.N6*, p.G539*, p.E609* and p.I671*), twelve missense mutations (p.K128I, p.N547T, p.D554Y, p.A558T, p.R559P, p.A631T, p.I647T, p.E656D, p.V657E, p.Q660H, p.K679N, and p.G696Y) and seven frame shift mutations (c.375_376insA, c.1642delA, c.1655delC, c.1825_1826insT, c.1957delGA, c.2014delA and c.2062_2063insGA). All of them are point mutations or micro rearrangements. Three of these mutations (p.K621N, p.G648D, p.G630E) have been previously reported; all of them are missense mutations. The mutations are distributed throughout the exon 2, 9, 11 and 12, 38.4 % mutation are located in exon 12.     

一品红的长日照与短日照处理

一品红（Euphorbia pulchertma）,大戟科,原产于墨西哥,别名圣诞花、猩猩木、象牙红、老来娇,因观赏期长而备受欢迎。1838年引入欧洲,由于一品红正值圣诞节开花,故名圣诞树。一品红观赏期长,加之栽培容易,病虫害少,盆栽、切花皆宜,是大家喜爱的冬季室内装饰花卉。世界各地广为栽培,我国除福建、云南等省可露地栽培,其他地方均做温室栽培。     

区域创新环境对广东工业专业镇创新绩效影响的实证研究

在广东省专业镇调整升级的背景下,从区域创新环境视角研究其对广东省工业专业镇创新绩效的影响效率,有助于地方优化区域创新环境的配置,有针对性、高效地营造良好的区域创新环境,从而提高专业镇创新绩效,保持专业镇经济的可持续发展.以广东省19个地市(除深圳、韶关)为研究对象,运用主成分因子分析法和DEA方法,综合评价各地市区域创新环境对专业镇创新绩效影响效率.通过对实证结果的分析,提出基于提高专业镇创新绩效的区域创新环境营造的具体建议.     

创新生态系统:一个情境视角的系统性评述

新兴技术不确定性、组织模式网络化、市场的服务导向和价值共创等趋势下，传统创新生态系统所嵌入的技术情境、组织情境和市场情境发生转变。现有创新生态系统文献缺乏对研究情境全面的、系统的关注。研究以系统性评述为基础，整合应用文献计量分析与内容分析，识别出创新生态系统研究的焦点主题、理论发展、应用方法，以及由文献簇涌现的研究情境（包含技术情境、组织情境、市场情境）。研究从情境视角为创新生态系统理论与实践的发展提供启示。     

中国叶下珠亚科植物资料

The present paper is part of taxonomic study on Chinese Phyllanthoideae. Inclu- ded in it are two new varieties, Leptopus esquirolii var. villosus and Drypetes hainanensis var. longistipitata, one new combination, Glochidion triandrum var. siamense, and seven new re- cords in China: Drypetes salicifolia, D. hoaensis. Actephila subsessilis, Glochidion khasicum, G. nubigennum, Bridelia spiosa and B. poilanei.  In addition, seventeen taxon names are new- ly reduced: Liodendron formosanum = Drypetes formosana, Liodendron matsumurae = Dry- petes matsumurae, D. longipes = D. indica, Antidesma paxii = A. acidum, A. hiiranense, A. filipes and A. pentandrum var. hiiranense = A. japonicum, A. calvescens = A. montanum, A. microphyllum = A. venosum, Breynia stipitata var.  formosana and B. jormosana  =  B. vitis-idaea, Glochidion zeylanicum var. tomentosum = G. hirsutum, G. rubidulum = G. thom- sonii, G. acuminatum = G. triandrum, G. fagifolium and Phyllanthus fagifolius = Gloc- hidion sphaerogynum, Bridelia penangiena = B. insulana, B. henryana = B. tomentosa.  All the types are kept in SCBl and PE.     

中国能源保障水平分区初探

在经济高速增长的新形势下,能源保障风险日益凸现。全国能源保障分区研究不仅是能源风险管理的基本要求,也是经济发展对能源产业提出的新要求。本文阐述了全国能源资源的基础形势,并对1996年．2005年间我国一次能源生产和消费情况进行了分析;构建了由能源储量比、对外依存度、库存增减量、能源生产弹性系数、能源消费弹性系数、运输线路长度6个指标组成的能源保障指标体系,采用因子分析法确定各个指标的权重;并根据灰色聚类方法对全国30个省（市、区）“十五”期间的能源保障能力进行了评估与分区。结果表明：我国能源保障水平具有南低北高、东低西高的特点;能源低保障区主要集中在沿海地区,能源中等保障区主要涵盖华北、华东、华中等地,能源高保障区包括东北和西北大部华北西北部地区。     

中国介蕨属孢子形态的研究

采用光学显微镜和扫描电子显微镜对国产介蕨属Dryoathyrium 14种植物及宁陕蛾眉蕨Lunathyri- um ningshenense 的孢子形态进行了观察。介蕨属孢子单裂缝，两侧对称，极面观为椭圆形，赤道面观为半 圆形或肾形。根据其周壁褶皱隆起形成的表面纹饰，介蕨属孢子可分为3种类型：第一种类型的周壁 具有网状或拟网状脊状纹饰，具此类型的种有翅轴介蕨D．pterorachis，中华介蕨D．chinense，朝鲜介蕨 D．coreanum；第二种类型的周壁具有裂片状、弯裂片状或瘤状突起，具此类型的种有介蕨D．boryanum， 陕甘介蕨D．confusum，无齿介蕨D．edentulum，鄂西介蕨D.henryi,华中介蕨D．okuboanum，川东介 蕨D．stenopteron，刺毛介蕨D．setigerum，绿叶介蕨D．viridifrons；第三类型的周壁具有刺状、不规则 棒状或乳头状突起，具此类型的种有直立介蕨D．erectum，镰小羽介蕨D．falcatipinnulum，蛾眉介蕨D． unifurcatum。宁陕蛾眉蕨的孢子形态与朝鲜介蕨D．coreanum 十分相似，支持将前者作为后者的异名的分类处理。     

基于执行意向理论的网购评论行为反应模式研究

以执行意向理论为基础,利用文本挖掘技术和社会网络分析方法对网购评论行为反应模式进行了初步探索。研究发现:驱动网购评论行为的因素按影响由大到小依次为网购体验、感觉与知觉、商品细节、包装品质、时间感知、色彩偏好、空间转移、价值让渡、人际网络、口碑传播、环境感知、情绪反应和决策行为等;网购目标导向体现为实用、享乐、速度、社交、让利、炫耀、情感、忠诚、分享、推荐和认同导向等行为目标,以及在其刺激下表现为抱怨、焦虑、紧张、愉悦感、恐惧感、情绪起伏、行为忠诚、口碑传播等网购行为反应;深入分析网购评论行为反应的6个主要过程及行为结果,为多学科交叉研究提供了一种可借鉴的方法。     

瓦韦属植物的系统学研究

根据瓦韦属植物根状茎上的鳞片及隔丝的形状、结构、颜色，参考叶片的形状、质地及根状茎、叶柄的横切面等特征，把瓦韦属植物划分为6个组，分别为瓦韦组Sect．Lepisorus、扭瓦韦组Sect．Pleioomma S．L. Yu、革质叶组Sect．Sclerophyllon S．L. Yu、大叶瓦韦组Sect．MacrophyllonS．L.Yu、纸质叶组Sect．Pachyphyllon S．L.Yu和薄叶组Sect．Hymenophyton Ching。     

Factors affecting the selection of search tactics: Tasks,knowledge, process,and systems

This study investigated whether and how different factors in relation to task, user-perceived knowledge, search process, and system affect users’ search tactic selection. Thirty-one participants, representing the general public with their own tasks, were recruited for this study. Multiple methods were employed to collect data, including pre-questionnaire, verbal protocols, log analysis, diaries, and post-questionnaires. Statistical analysis revealed that seven factors were significantly associated with tactic selection. These factors consist of work task types, search task types, familiarity with topic, search skills, search session length, search phases, and system types. Moreover, the study also discovered, qualitatively, in what ways these factors influence the selection of search tactics. Based on the findings, the authors discuss practical implications for system design to support users’ application of multiple search tactics for each factor.