刺皮瘿螨属二新种记述(真螨目:瘿螨科)

本文记述刺皮瘿螨属Aculops二个新种,文内长度单位是微米,模式标本保存在南京农业大学植保系。 蟠槐刺皮瘿螨Aculops sophorae新种(图1—5) 雌螨 体长160,宽55,厚50,纺锤形。喙长24,斜下伸。背盾板具前叶突,端部具小刺;盾板长17,宽45;盾背上背中线不完整,约存后部的2/3,侧中线波状,并与背中线相连,有亚中线;背瘤位于盾后缘,瘤距25,背毛27,斜后指。前基节间具腹板线,基节刚毛Ⅰ8,Ⅱ15,Ⅲ25,基节具粒点。足Ⅰ长26,股节9,股节刚毛10;膝节4,膝节刚     

瘿螨科一新属六新种记述(蜱螨亚纲：瘿螨总科)

本文记述瘿螨科Eriophyidae一新属六新种。所用量度单位为μm。模式标本保存在南京农业大学植保系。新波羽瘿螨属Neocymoptus新属体纺锤形。背盾板近三角形,前叶突较明显,其端部中央略凹陷,背瘤位于盾后绿,背毛后指。缺基节刚毛1。足各节俱全,有模式刚毛,羽状爪单一。大体背坏波状,侧毛和腹毛俱全。1竹新波羽＠螨Neqopsbonlousae新种（图1～5）雌螨：体纺锤形,长132,宽48,厚41。赚长18,斜下伸。背盾板长33,宽40,前叶突较明显,其端部中央略凹陷;背中线完整呈断续状,侧中线和亚中线完整,侧中线波状,后端相向会合;背瘤位…     

畸痿螨属二新种和中国一新纪录(真螨目:瘿螨总科)

畸瘿螨属Abacarus隶于瘿螨科(Eriophyidae)叶刺瘿螨亚科(Phyllocoptinae)。文内所使用的长度单位为μm。模式标本保存在南京农业大学。 武夷畸瘿螨,新种Abacarus wuyiensis sp.nov.(图1—5) 雌螨 体长175—215,宽50,厚45,纺锤形。喙长27.5,斜下伸。背盾板具前叶突,盖于喙基部的上方;盾板长43,宽45;背中线完整,但不明显,侧中线波状,其前端和1/3后端处由横线与背中线相连接,亚中线完整,其中只有一条较明显;背瘤生于盾后缘,瘤距34,背毛9,斜上指。前基节间有腹板线;基节刚毛Ⅰ11,Ⅱ20,Ⅲ25;基节具条状饰纹。足Ⅰ长29;股节11,股节刚毛8;膝节4,膝节刚毛28;胫节6,胫节刚毛位于背部近     

中国叶刺瘿螨亚科一新属七新种(真螨目:瘿螨总科)

叶刺瘿螨亚科(Phyllocoptinae)属瘿螨总科(Eriophyoidea),瘿螨科(Eriophyidae)。本文记述了作者于1985年采自福建省的标本,文内长度单位均为微米。模式标本保存于南京农业大学植保系。 新谢氏瘿螨属Neoshevtchenkella新属 体纺锤形。背盾板似三角形,具前叶突,在前叶突的正下方生一明显的尖状突起。背瘤位于盾后缘,背毛斜后指。前基节由腹板线分开,基节刚毛三对。足各节及其刚毛俱     

叶刺瘿螨亚科三新种记述(真螨目:瘿螨科)

本文记述叶刺瘿螨亚科(Phyllocoptinae)三新种。文内度量单位为μm。所有模式标本保存在南京农业大学植保系。 竹刺瘿螨 Aculus bambusae新种(图1—4) 雌螨 体纺锤形,长190—200,宽60,厚55。喙长25,斜下伸。背盾板具前叶突,盾板宽45,长35;背中线、侧中线和亚中线完整,离侧中线后端约1/3处有横线相连,构成前后四个小室,基部二个小室和近盾后喙布有短条状饰纹,盾板两侧有粒点;背瘤位于盾后缘,瘤距28,背毛30,斜后指。前基节由腹板线分隔,基节刚毛Ⅰ10,Ⅱ15,Ⅲ25,基节     

叶刺瘿螨亚科三新种记述(真螨目:瘿螨科)

本文记述了叶刺瘿螨亚科 Phyllocoptinae三新种。模式标本保存在南京农业大学植保系。文中量度为μm。 珍珠菜刺皮瘿螨 Aculops lysimachiae 新种(图1—6) 雌螨体纺锤形,长175,宽55,淡黄色。口喙长22.5,下伸。背盾板长40,宽7.5,近三角形;背中线不完整,侧中线完整,波状,于二处有横线与背中线连接,亚中线完     

双羽瘿螨亚科二新种记述(真螨目:大嘴瘿螨科)

本文记述我国双羽瘿螨亚科(Diptilomiopinae)二新种。所用度量单位为μ。全部模式标本保存在南京农业大学植保系。 广西鼻瘿螨 Rhynacus guanxinensis 新种(图1-5) 雌螨 体纺锤形,长175,宽75,厚50。喙大,长45,基部成直角下伸。背盾板无前叶突,盾板长30,宽60;背中线不完整,在盾板前约有5/6的面积上,由背中线、侧中线和亚中线组成网状纹,沿其前缘共有小网室14个;背瘤位于盾后缘之前,瘤距25,无背毛。     

纳氏瘿螨属一新种记述(蜱螨亚纲:瘿螨总科)

本文记述纳氏瘿螨科(Nalepellidae)、纳氏瘿螨属Nalepella一新种,文内使用的长度单位为μm,模式标本保存在南京农业大学植保系。 榧纳氏瘿螭,新种Nalepella torreyae sp.nov.(图1—5) 雌螨 体长236,宽100,纺锤形。喙长30,斜下伸。背盾板有前叶突;盾板长67,宽83;前背毛25,位于盾板的前喙;背瘤位于盾板后缘,瘤距50,背瘤纵轴长10,背毛150,前指;盾板上布有短条状饰纹。前基节间有腹板线;基节刚毛Ⅰ 12,Ⅱ 35,Ⅲ 45;     

中国蜡梅上的瘿螨二新种(蜱螨亚纲,瘿螨总科)

记述寄生在蜡梅Chimonanthus praecox(Linn.)Link.(蜡梅科Calycanthaceae)叶子上的瘿螨2新种:蜡梅离子瘿螨Leipothrix chimonae sp.nov.和蜡梅双羽爪瘿螨Diptacus praecoxsp.nov.。模式标本保存在河北大学博物馆。蜡梅离子瘿螨,新种Leipothrix chimonae sp.nov.(图1～5)正模♀,副模:25♀♀,2♂♂,2009-06-01,陕西省岚皋县蜡烛村,海拔600m,谢满超采。寄主为蜡梅Chimonanthuspraecox(Linn.)Link.(蜡梅科Calycanthaceae)。新种与悬钩子离子瘿螨Leipothrix yipingae Shi,2000相似,但新种背盾板具背中线,雌生殖盖片基部具纵线,端部饰有斜线,羽状爪3支,而悬钩子离子瘿螨L.yipingae背盾板上无背中线,雌生殖盖片饰有短线和粒点,羽状爪4支。蜡梅双羽爪瘿螨,新种Diptacus praecox sp.nov.(图6～12)正模♀,副模:8♀♀,7♂♂,2009-06-01,陕西省岚皋县蜡烛村,海拔600m,谢满超采。寄主为蜡梅Chimonanthuspraecox(Linn.)Link.(蜡梅科Calycanthaceae)。新种与臭樱双羽爪瘿螨Diptacus maddenis Song,Xue etHong,2007相似,但新种足Ⅰ基节间具胸线,基节饰有线条和粒点,雌生殖器盖片上饰有1排纵肋,而臭樱双羽爪瘿螨D.maddenis足Ⅰ基节间无胸线,基节饰有粒点,雌生殖器盖片基部饰有粒点。     

中国陕西双羽爪瘿螨属二新种(瘿螨总科,羽爪瘿螨科,羽爪瘿螨亚科)

记述在陕西发现的双羽爪瘿螨属2新种:短毛双羽爪瘿螨 Diptacus brevichaetus sp.nov.,寄主是山胡椒Lindera glauca(Sieb.et Zucc.)Bl.(樟科Lauraceae);商州双羽爪瘿螨Diptacus shangzhous sp.nov.,寄主是樱桃Cerasus pseudocerasus (Lindl.)G.Don(蔷薇科Rosaceae).模式标本保存在安康学院农学与生命科学学院.短毛双羽爪瘿螨,新种Diptacus brevichaetus sp.nov.(图1～6)正模♀;副模:7♀♀,5♂♂,2008-07-24,陕西省商南县(33°31′N,110°53′E;海拔780m),金丝峡、谢满超采.寄主为山胡椒Lindera glauca(Sieb.et Zucc.)Bl.(樟科Lauraceae).新种与黄肉楠双羽爪瘿螨Diptacus actinodaphne Wang et Wei,2009相似,但新种背盾板饰有网格;足Ⅰ基节间光滑;生殖盖片基部饰有颗粒,端部饰有12短线予以区别(黄肉楠双羽爪瘿螨D.actinodaphne背盾板饰有不规则短线;足Ⅰ基节饰有线条;雌生殖盖片饰有8～10条纵肋).商州双羽爪瘿螨,新种Diptacus shangzhous sp.nov.(图7～12)正模♀;副模:9♀♀,7 ♂ ♂,2008-08-26,陕西省商州市(33°47′N,109°40′E;海拔870 m),秦王山、谢满超采.寄主为樱桃Cerasus pseudocerasus(Lindl.)G.Don(蔷薇科Rosaceae).新种与樱桃双羽爪瘿螨Diptacus pseudocerasis Kuang et Hong,1990相似,但新种具前叶突;足Ⅰ基节分离,无胸线;基节饰有颗粒和少量短线;雌生殖器盖片基部饰有颗粒,端部光滑予以区别(樱桃双羽爪瘿螨D.pseudocerasis无前叶突;足Ⅰ基节间具胸线,基节光滑;雌生殖器盖片光滑).     

Studies on the morphology of the gills and gill arches with reference to the blood supply in Notopterus motopterus and Colisa fasciatus.

The morphology of the gills, with their blood supply have been described in Notopterus notopterus and Colisa fasciatus in some detail. Gills are curved and perforated on the dorsolateral and ventrolateral wall of the pharynx. The gills consist of 2 rows of filaments which are stacked one above the other to form a space. The gill filaments are smaller on both the ends and larger in middle. The gill filaments are of pink colour as they are supplied with blood. Gill rakers are large in size in Notopterus notopterus while they are small in Colisa fasciatus. 3 pairs of basibranchials are present in Notopterus notopterus which are covered by median membranous bony plate while 2 basibranchials are present in Colisa fasciatus. 3 pairs of hypobranchials are present in both fishes. 5 pairs of ceratobranchials are present in which Vth ceratobranchial bears teeth. 4 pairs of epibranchials are present. 3 pairs of pharyngobranchials are present in which the tip of the IVth pharyngobranchial bears minute teeth in Notopterus notopterus while in Colisa fasciatus IInd and IIIrd pharyngobranchial bear minute ones. One afferent branchial vessel is present in Notopterus notopterus and Colisa fasciatus in each gill like in other teleostean fishes. One efferent branchial vessel is present in each gill of Notopterus notopterus while in Colisa fasciatus 2 efferent are represented in each gill.     

广西金钟山鸟类保护区鸟类多样性初步研究

本文共记录到金钟山鸟类274种,分别隶属于18目57科,其中陆生鸟类251种,水鸟23种;以留鸟为主,共157种;候鸟、旅鸟分别为104种、13种;东洋种为优势类群,共有171种,古北种和广布种分别为4种、27种。这些鸟类中有国家重点保护鸟类39种,中国特有种鸟类3种,列入世界自然保护联盟红皮书名录中的鸟类5种,列入中国濒危动物红皮书名录中的鸟类20种,列入CITES附录中的鸟类34种。本文还对金钟山鸟类保护区的5种不同生境类型的鸟类种类组成作了比较,结果表明灌丛＋农田的鸟种多样性指数最高,为3．04;水域的鸟种多样性指数最低,为2．14。     

ELECTRON MICROSCOPIC STUDIES OF MITOSIS IN AMEBAE : II. The Giant Ameba Pelomyxa carolinensis

Dividing nuclei from the giant ameba Pelomyxa carolinensis were fixed in osmium tetroxide solutions buffered with veronal acetate to pH 8.0. If divalent cations (0.002 M calcium, magnesium, or strontium as chlorides) were added to the fixation solution, fibrils that are 14 mµ in diameter and have a dense cortex are observed in the spindle. If the divalent ions were omitted, oriented particles of smaller size are present and fibrils are not obvious. The stages of mitosis were observed and spindle components compared. Fibrils fixed in the presence of calcium ions are not so well defined in early metaphase as later, but otherwise have the same diameter in the late metaphase, anaphase, and early telophase. Fibrils are surrounded by clouds of fine material except in early telophase, when they are formed into tight bundles lying in the cytoplasm unattached to nuclei. Metaphase and anaphase fibrils fixed without calcium ions are less well defined and are not observably different from each other. The observations are consistent with the concept that spindle fibrils are composed of polymerized, oriented protein molecules that are in equilibrium with and bathed in non-oriented molecules of the same protein. Partially formed spindle fibrils and ribosome-like particles were observed in the mixoplasm when the nuclear envelope had only small discontinuities. Remnants of the envelope are visible throughout division and are probably incorporated into the new envelope in the telophase. Ribosome-like particles are numerous in the metaphase and anaphase spindle but are not seen in the telophase nucleus, once the envelope is reestablished, or in the interphase nucleus.     

Hydrogen bonding in DNA base complexes.

Experimental intermolecular frequencies in the DNA base complexes 1-methylthymine (1-MT) and cytosine monohydrate (CMH) are analyzed in terms of simple analytic interatomic potentials. Calculations with two different values for the constants of the nonbonded interactions are considered, and the hydrogen bond potentials are determined for each of these models. The observed frequencies in 1-MT are reasonably well described, although corresponding potentials are very different in the two models. The observed frequencies in CMH are less well described, although corresponding hydrogen bond potentials are similar in the two models. Hydration interactions are found to be important in CMH and the role of the water molecule is discussed. Possible reasons for the shortcomings of this simple analysis are considered.     

东北地区蒙古栎群落区系成分

根据吴征镒、王荷生区系分析方法, 分析了东北地区蒙古栎群落中２６１ 种维管植物的区系成分, 其中温带成分占４７－４７ ％ , 东亚成分占４２－０２ ％ , 中国特有成分占１０－５１ ％ （ 世界分布不统计在内） 。并分析了种所在属的分布区类型, 温带分布属占９０－３％ 。还分别分析了蒙古栎群落的乔木层、灌木层、草本层以及层间植物的区系成分。     

新疆蝗总科区系研究

新疆现有蝗虫１５７种,它们分别隶属于８科６２属。在１５７种蝗虫中,古北种占绝对优势,有１２０种,其次为特有种,有３５种,广布种甚少,仅２种。在古北种中,中亚种最多,其次为泛古北种,而欧洲西伯利亚种、地中海种和东北种均很少。在８个科中,泛古北种在网翅蝗科中占优势,中亚种在班翅蝗科中占优势,斑腿蝗科在蝗总科中是相当大的一个科,在我国也占有很大优势,但在新疆其属种数量却很少。     

沙冬青冬季叶绿体的超微结构特征

沙冬青在冬季的叶肉细胞中有丰富的叶绿体,经常聚集在一起,相互重叠,相互嵌合,有的还相互融合。大部分叶绿体为凸透镜形,多余叶绿体主要为V形、蝶形、连婴形和哑铃形。它们的被膜不光滑,常凹凸不平,甚至出现突起和内陷。类囊体十分发达,质体小球很多,但淀粉粒缺乏。大部分叶绿体形态结构正常,有的还在出芽和分裂。少数叶绿体与此不同,它们已经衰老,其中一些正在解体或已经解体。     

深圳塘朗山郊野公园的植物资源

广东深圳塘朗山郊野公园共有野生维管植物144科423属611种,分别占广东省维管植物280科1589属5737种的51.4%、26.7%和10.65%;其中蕨类省植物21科29属33种,裸子植物3科3属4种,被子植物120科391属574种,被子植物占绝对优势。国家重点保护野生植物共计7科7属7种,占广东省国家重点保护野生植物的10.9%;珍稀濒危植物有4科5属5种,占广东省珍稀濒危植物67种的7%。公园中经济植物可分为12类,分别是药用植物321种,用材树种65种,观赏植物60种,纤维植物41种,野生水果33种,油脂植物38种,饲料植物42种,鞣料植物42种,野菜植物25种,农药植物27种,芳香植物26种,淀粉植物23种,保健植物19种,染料植物13种,有毒植物10种,蜜源植物5种。     

Compatibility and the genesis of residual stress by volumetric growth

The equations of compatibility which are pertinant for growth strain fields are collected and examples are given in simply-connected and multiply-connected regions. Compatibility conditions for infinitesimal strains are well known and the possibilities of Volterra dislocations in multiply-connected regions are enumerated. For finite growth strains in a multiply-connected regions, each case must be examined individually and no generalizations in terms of Volterra dislocations are available. Any incompatible growth strains give rise to residual stresses which are known to occur in many tissues such as the heart, arterial wall, and solid tumors.