Echinoids (Echinodermata: Echinoidea) from the Gulf of Mexico

The echinoid fauna of the Gulf of Mexico collected during three research cruises (20-1260 m depth) was surveyed from samples were taken at 43 stations. A total of 190 individuals were identified (eight orders, 11 families, 15 genera and 18 species). Six species are new records for the Gulf of Mexico: Stylocidaris lineata, Phormosoma placenta placenta, Plesiodiadema antillarum, Plethotaenia spatangoides, Brissopsis atlantica and Hypselaster limicolus. This adds to the little information available on the echinoid fauna of Tamaulipas, Veracruz, Tabasco, Campeche and Yucatan states in Mexico.     

重庆市种子植物区系特征分析

对重庆市种子植物区系进行了研究,其区系特征如下:(1)植物种类和区系组成丰富,共分布有野生种子植物208科1 127属4 764种,其科包含12种分布型和13个变型,属包含15种分布型和23个变型;(2)科的区系组成以热带成分占主要,总共包含83科,达到重庆地区种子植物总科数的39.90%,这说明重庆种子植物区系带有一定的热带亲缘关系.属的区系组成以热带成分最多,达到454属,占重庆市种子植物总属数的40.28%,表明重庆地区种子植物区系的热带亲缘关系较强;(3)特有现象明显,虽然本地区分布的特有科属相对较少,但特有种丰富.     

Phycoflora of the tropical high-mountain lake El Sol,Central Mexico,and some biogeographical relationships

Algae collected from an oligotrophic crater lake were identified andcompared with similar regional information. A total of 50 genera and105 infrageneric taxa were identified, mostly Chlorophyta (66%),Cyanophyta (20%) and Bacillariophyta (7 genera: one central and sixpennates). Relatively few Chlorococcales were found in thisoligotrophic lake. The families most frequently found wereOedogoniaceae (18 species), Desmidiaceae (17), Zygnemataceae (13),Oscillatoriaceae (11), and Chaetophoraceae (9). Two genera ofCyanophyta, seven of Chlorophyta and 59 species are first records forMexico.     

世界红树植物区系

探讨了世界红树林植物区系的种类组成及其特点。确认全世界共有红树植物16科24属84种(含12变种)，其中真红树为11科16属70种(含12变种)，半红树为5科8属14种。东方类群有14科18属74种(含12变种)，以／legiceras，Osbornia，／legialitis，Bruguiera，Ceriops，Kandelia，Scyphiphora和。Nypa等属为特征；西方类群有5科6属10种，具有单种特有科皮利西科Pelliceraceae以及laguncularia属。中国红树植物区系有12科15属26种(含1变种)，其中特有种4种。海南的红树植物种类最为丰富，占全国的96．2％；广东次之，占42．3％。台湾记载的红茄苳(Rhizophoram,ucronata)其实为红树榄R．stylose之误。     

辽宁省高等植物多样性编目

为给辽宁植物多样性保护提供本底数据, 更准确地评价植物濒危及保护等级, 以及更好地给农学、林学、生态学、系统学等研究提供可靠的基础性数据, 本文首次将几代人在辽宁境内发现的高等植物进行汇总、编目, 包括苔藓植物和维管束植物。苔藓植物根据正式发表的文献和中国科学院沈阳应用生态研究所东北生物标本馆(IFP)馆藏采自辽宁省全域的苔藓植物标本编制。维管束植物主要根据5个方面的信息整理: 作者多年野外调查的一手资料、文献、同行交流、公众提供信息、标本等。编目内容包括辽宁省高等植物总名录、辽宁省栽培植物名录、辽宁省外来植物名录、辽宁省仅有栽培植物的科属目录、辽宁省仅有外来植物的科属目录; 编目中涉及的物种均有科属地位、中文名、拉丁名、生境、产地(县级), 总名录中附有每个物种的信息凭证, 包括标本信息、文献信息或照片依据。本编目共计收录植物254科1,176属3,241种73亚种447变种119变型。其中, 苔藓植物为辽宁地区首次披露名录信息, 计83科205属491种4亚种7变种(含藓类52科156属373种1亚种5变种, 苔类29科46属114种3亚种2变种, 角苔类2科3属4种)。维管束植物虽非首次披露名录信息, 但与以往发布的维管束植物名录相比, 本次收录的种类数最多, 计171科971属2,750种69亚种440变种119变型(含石松类植物2科3属13种, 蕨类植物17科39属83种2亚种7变种, 裸子植物5科19属47种1亚种13变种2变型, 被子植物147科910属2,607种66亚种420变种117变型)。经统计, 辽宁省所有苔藓植物均为本土野生植物。维管束植物中, 野生植物计149科741属2,077种62亚种378变种93变型(含石松类植物2科3属13种, 蕨类植物17科39属83种2亚种7变种, 裸子植物4科8属12种6变种1变型, 被子植物145科133属1,969种60亚种365变种92变型), 栽培植物计104科390属673种7亚种62变种26变型(含裸子植物5科17属35种1亚种7变种1变型, 被子植物99科373属638种6亚种55变种25变型); 本土植物计158科796属2,235种65亚种421变种116变型(含石松类植物2科3属13种, 蕨类植物17科39属83种2亚种7变种, 裸子植物5科14属29种12变种2变型, 被子植物134科740属2,110种63亚种402变种114变型), 外来植物计88科316属515种4亚种19变种3变型(含裸子植物3科10属18种1亚种1变种, 被子植物85科306属497种3亚种18变种3变型)。本编目仅是辽宁省高等植物的阶段性汇总, 尚需要根据野外工作的拓展和研究工作的深入不断完善。     

安徽琅琊山大型真菌区系多样性

对安徽省琅琊山自然保护区大型真菌区系多样性进行了分析.结果表明该地区共有大型真菌107种,分属于25科56属,其中优势科为多孔菌科Polyporaceae(20种,占18.69％)、口蘑科Tricholomataceae(14种,占13.08％)、丝膜菌科Cortinariaceae(11种,占10.28％)、红菇科Russulaceae(10种,占9.35％),以上4科仅占琅琊山大型真菌总科数的16％,而种数占全部种数的51.4％;优势属有鹅膏属Amanita(8种,占7.48％)、栓菌属Trametes(7种,占6.54％)、乳菇属Lactarius(5种,占4.67％)、小皮伞属Marasmius(5种,占4.67％)、红菇属Russula(5种,占4.67％),共包括30种,占全部种数的28.04％.从属的区系地理成分上可分为:世界性分布成分(66.07％)、泛热带分布成分(19.64％)、北温带分布成分(10.71％)、东亚分布成分(1.79％).琅琊山大型真菌主要是以世界广布成分为主,其次是泛热带成分和北温带成分,这种分布状况可能与该地区的气候、地理和植被等自然条件的特征有着密切的关系.从种的组成上可划分为世界性分布种(70.09％)、温带分布种(14.95％)、热带-亚热带分布种(14.02％)及中国-日本共有种(0.93％)等4个分布类型,表现出一定的热带向温带过渡的区系特征.     

Length–weight relationships of wild fish captured at the mouth of Río Verde,Oaxaca, México and connected lagoons (Miniyua,El Espejo,Chacahua and Pastoría)

Length–weight relationships (LWR) were estimated for 34 fish species belonging to 25 genera and 17 families, specimens were collected near the mouth of the Río Verde, Oaxaca, Mexico. All r² values are statistically significant (P > 0.0001). The values of ‘b’ ranged from 2.55 and 3.3, within the usual range (2.5–3.5). This study provides the first LWR references for six species, and new maximum length records for eight species.     

A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: introduction, Xyelidae, Pamphiliidae, Cimbicidae, Diprionidae, Xiphydriidae, Siricidae, Orussidae, Cephidae

Abstract Eight families of Symphyta for the Western Hemisphere south of the United States are reviewed: Xyelidae (one genus, two species), Pamphiliidae (one genus, four species), Cimbicidae (five genera, nine species), Diprionidae (three genera, thirteen species), Xiphydriidae (four genera, seventeen species), Siricidae (six genera, nine species), Orussidae (five genera, twelve species), and Cephidae (one genus, one species). New taxa are Acantholyda nigrostigmata (Pamphiliidae); Zadiprionfalsus, Neodiprion bicolor, N.equalis, N.omosus (Diprionidae); Derecyrta circularis, Steirocephala lateralba (Xiphydriidae); Sirotremex, S.flammeus (Siricidae); and Ophrynopus depressatus, O.plaumanni (Orussidae). Lopesiana is a new name for Lopesia Conde (Cimbicidae). Three new combinations and six new synonyms are proposed. The Xyelidae, Pamphiliidae, Diprionidae, Siricidae and Cephidae are primarily northern groups with southern extensions into Mexico, Central America and/or Cuba. The Cimbicidae, Xiphydriidae and Orussidae are more generally distributed throughout the neotropics. Keys to families, genera and species are provided.     

西藏色季拉山蕨类植物资源特征

为了摸清色季拉山蕨类植物资源的种类和资源特征,为该区蕨类开发利用提供依据。该研究通过查阅《西藏植物志》和标本,结合色季拉山多年植物调查名录,对该区野生蕨类植物进行统计分析,并对其用途进行了描述。结果显示:(1)色季拉山共有蕨类植物资源29科、57属、196种(包括变种和变型),分别占西藏蕨类植物总科、属、种的65.91%、45.24%、41.70%;优势科为鳞毛蕨科(3属/50种)、水龙骨科(9属/31种)、蹄盖蕨科(7属/22种)、中国蕨科(6属/14种),优势属为鳞毛蕨属(27种)、耳蕨属(19种)。(2)色季拉山蕨类植物的地理成分以热带类型的科和属占优势(分别占非世界分布科、属的80.00%、68.18%),具有明显的热带性质;生态分布类型以陆生为主(118种,占60.20%),其次为附生(45种,占22.96%)。(3)色季拉山共有药用蕨类植物66种,且以清热药种类最多(30种);观赏蕨类植物共有71种(其中新增加23种);食用蕨类植物共有14种,且多以嫩叶或嫩茎或根状茎为食;少数蕨类还具有指示、工业原料、饲料和绿肥等方面的作用。研究表明,色季拉山蕨类植物资源种类丰富,在西藏蕨类植物区系中占很大比例,具有很高的开发利用价值。     

韩国华津浦湖的鱼类区系

There are sevenlagoons onthe east coast of Korea,including Kyeongpo Lake,Hyang Lake,Mae Lake,Chung-cho Lake,Yeoungrang Lake,Songji Lake and HwajinpoLake.They are all originally natural and brackish waterlakes.Therefore,these lakes are not only historically veryimportant but also have high values for geological,andecological sciences.Natural lakes like lagoons are different from man-made lakes.That is,water level in natural lakes is almostconstant,cline by waterside is not much,and wet la…     

Desmids from Southern Bays of the Donghu Lake,Wuhan, China

A total of 48 algae samples were collected from southern bays of the Donghu Lake from September in 1963 to December in 1964．The desmids were very plentiful,164 species,75 varieties and 13 forms belonging to 20 genera were identified．Among these,two species,seven varieties and two forms are new to science**,and 12 species,25 varieties and five forms are recorded for the first time in China．The dominant species with frequent occurrence were 11 species and one variety in four seasons． The result of counting and analysing the samples collected in different seasons (six times for each) shows that the number of the taxa of Desmids in summer (June and August)was the highest,that in autumn and winter (September,October and December) the next,and that in spring (April) is the lowest．Fourty five of 252 desmids taxa are tropical and subtropical,among which 19 are either endemic to or common in S and SE Asia． The desmid flora of Wuhan district is therefore subtropical in nature and closely related to the S and     

武汉东湖南部湖汊的鼓藻类

从1963年9月到1964年12月,作者在武汉东湖南部的湖汊定点采得48号藻类标本,其鼓藻类十分丰富,经鉴定共有20个属,164个种,75个变种和13个变型。其中有2个新种、7个新变种和2个新变型,12个种、25个变种和5个变型是中国的新记录;在四季中出现频率较高的优势种类有11个种和1个变种。在不同季节共6次所采得的鼓藻种类的统计结果得出,在夏季(6月、8月)的种类最多,秋季和冬季(9月、10月、12月)次之,春季(4月)最少。在东湖252个鼓藻类的分类单位中,热带、亚热带类群共有45个,其中的19个是南亚和东南亚地区特有或普遍分布的类群,13个是以广西为模式产地的类群,从而反映武汉地区鼓藻类区系具有亚热带类型的特点,并与南亚和东南亚的鼓藻类区系关系密切。     

Checklist of Wadi Hassan flora,Northeastern Badia,Jordan

In this study, we survey the plant diversity of Wadi Hassan, which is located in the Northeastern Badia of Jordan, about 120 km east of Amman. All plant species were collected and herbarium specimens have been prepared, identified and deposited at the University of Jordan herbarium(Department of Biology,Faculty of Science). The final plant checklist includes 206 species belonging to 138 genera and 35 families.The most diverse families are Compositae(20.5%), Cruciferae(10.2%), Leguminosae(8.3%) and Boraginaceae(6.8%), followed by Caryophyllaceae and Gramineae(5.4%). These six families represent 60% of the total families recognized in the study area, while nine families each are represented by only one species. Most plants recorded are annual plants(61%), some plants are hemicryptophtes(18%) and camaephytes(15%), while the least frequent life form class was the phanerophyte shrub and perennial(0.5%). Chorological characteristics of the recorded flora show that Saharo-Arabian Region elements, IranoTuranian elements and Mediterranean elements constitute(58%) of the total flora. This research shows that even small portion of the Jordan Badia such as the Wadi Hassan plant community has high species diversity. Thus, we recommended further of the unexplored Wadi plants communities of the Jordan Badia.     

中国科学院华南植物园标本馆维管植物标本数据统计分析

为充分利用植物标本信息,从植物标本与物种信息系统数据库中对中国科学院华南植物园标本馆维管植物标本数据进行了统计和分析。结果表明,该馆馆藏标本统计时已录入696298号、716469份腊叶标本,分别隶属于354科5813属48707种(包含亚种、变种及变型),其中包括蕨类植物59科253属2105种(包含亚种、变种及变型)、裸子植物11科64属 557种(包含亚种、变种及变型)、被子植物284科5496属46045种(包含亚种、变种及变型)。标本分别采自中国33个省、自治区、直辖市、特别行政区以及其它107个国家或地区(98个国家,9个地区或岛屿);国内标本采自广东省的最多,国外标本采自美国的最多。其中模式标本6351号,隶属于194科938属4373种。还对标本馆今后的采集工作提出了建议。这些数据为科学研究提供了宝贵的数据资源。     

滦河上游地区藓类植物区系的初步研究

于2001~2005年在滦河上游地区共采集藓类植物标本1 810份,并对标本进行了整理鉴定.分析结果表明,滦河上游地区共有藓类植物27科75属175种1亚种12变种2变型,分别占全国藓类植物科、属、种(含种下分类单位)总数的41.54%、18.16%和7.74%.其中,河北省藓类植物新纪录6种1变种.该地区的优势科为丛藓科、柳叶藓科等6科,优势属为真藓属、青藓属等11属.该地区藓类植物可划分为10种区系成分,北温带成分居各种区系成分的首位,占该区系总种数的64.42%,东亚成分次之,占13.50%.该区系中温带性质的的种共计158种,占整个区系总种数的83.16%,而热带性质的种仅5种,显示了该地区藓类区系显著的温带性质.     

云南姜科植物的增补与修订

据中国植物志(1981),云南有姜科植物17属, 78种,9变种。其后多篇文章论及一些种属,标本也有较多的增加。本文根据现有的标本与文献资料对云南姜科植物作增补与修订,共涉及16属15种,包括1个新种,7个修定后的异名。云南共计有姜科植物18属,148种和11变种。     

在开发利用中的广西植物资源

<正> 引言 一、广西现有植物资源概况 (一)科、属、种的构成 (二)用途类别统计 (三)性状划分统计 (四)优势植物 (五)特有植物和受保护植物 (六)入载为模式的植物 二、广西植物资源直接利用概况 (一)政府部门收购及生产单位的利用 (二)民间利用 三、广西植物资源开发应用的试验研究 (一)种类的调查发现 (二)综合性的调查 (三)应用上的研究 (四)研究成果的社会效益和经济效益 四、广西植物资源开发利用途径的探讨     

Ichthyofauna of the Navidad Bay, Jalisco, México]

A check-list and the relative abundance of the ichthyofauna from Bahia de Navidad, Jalisco, Mexico is presented. This poorly known area of the eastern Tropical Pacific ocean is characterized by its great fish diversity. A total of 245 fish species (163 genera, 72 families) were collected during the 1994-1995 annual cycle. Vouchers were deposited in Centro de Ecologia Costera, Universidad de Guadalajara. The most important families in number of species were Carangidae (20 species), Haemulidae (20), Serranidae (17), Sciaenidae (13) and Lutjanidae (8); 20 species represented 85% and 80% of relative abundance and biomass respectively. Microlepidotus brevipinnis, Caranx caninus, Caranx caballus, Kiphosus analogus and Caranx sexfasciatus, were the dominant species. Most fish species collected in Bahia de Navidad have zoogeographical affinity with the Panamic Province (65%), and in lesser proportion with the Eastern Pacific Ocean (19%), Circumtropical (7%), Mexican Province (5%), Indo-Pacific Ocean (3%) and Gulf of California (0.4%). The great ichthyological affinity between the study area and the southern Gulf of California suggests an extension of the of Gulf southern limit.     

宁波四明山区的蜻蜓

2009—2010年对宁波四明山地区的蜻蜓资源进行了野外调查,共采集蜻蜓标本460只,隶属9科32属43种。蜻科Libellulidele为优势科(17种,占总数的39.5%),灰蜻属Orthetrum为优势属(5种,占属总数的15.6%)。单种单属有25个,占总属数的78.1%,说明四明山区蜻蜓区系在起源和构成上比较复杂。四明山区蜻蜓区系以东洋区和跨古北区-东洋区种类占优势。调查发现水体污染、湿地过度开发利用已经成为该地区蜻蜓目昆虫及其它水生生物面临的主要威胁。