中国枝疣蛛属一新种和一新纪录种(蜘蛛目,平腹蛛科)

记述了平腹蛛科枝疣蛛属1新种,宁明枝疣蛛Cladothela ningmingenisis sp.nov.和中国1新纪录种,小枝疣蛛Cladothela parva Kamura,1991.     

中国皿蛛一新属及一新种记述（蜘蛛目：皿蛛科）

记述采自我国湖南省南岳的皿蛛科皿蛛亚科蜘蛛 1新属 1新种 :芙蓉蛛属Lotusiphantesgen .nov .,南岳芙蓉蛛Lotusiphantesnanyuensissp .nov .。     

太行山区幽灵蛛属一新种记述(蜘蛛目,幽灵蛛科)

记述了太行山区蜘蛛区系研究中发现的幽灵蛛科幽灵蛛属1新种:短突幽灵蛛Pholcus pennatus.sp.nov.模式标本保存在河北大学生命科学学院.文中测量单位mm.     

中国皿蛛—新属及一新种记述（蜘蛛目：皿蛛科）

记述采自我国湖南省南丘的皿蛛亚科蜘蛛1新属1新种：芙蓉蛛属Lotusiphantes gen.nov.,南岳芙蓉蛛Lotusiphantes nanyuensis sp.nov.。     

西藏栅蛛属一新种（蜘蛛目：栅蛛科）

本文记述蜘蛛目栅蛛科一新种——喜马拉亚栅蛛Hahnia himalayaensis sp. nov.。本新种与Hahnia pyriformis Yin et Wang和H. arizonica Chamberlin et Ivie相近似,但其额高,体躯背面斑纹以及外雌器和触肢器的构造与后两种有明显区别。     

中国吻额蛛属一新种（蜘蛛目：皿蛛科：微蛛亚科）

本文描述了作者1986年采自湖北省神农架林区的吻额蛛属Aprifrontalia一新种:膨大吻额蛛,新种Aprifrontalia afflata sp.nov.。目前,除本新种外,世界仅报道过1种:Aprifrontalia mascula,本新种雄蛛最显著的特征是:其额向前突呈吻状,触肢胫节前端甚膨大。外雌器形成一斜向下方的突起。模式标本保存于白求恩医科大学生物教研室。     

中国隙蛛属一新种（蜘蛛目：漏斗蛛科）

本文描述了漏斗蛛科隙蛛属一新种:波纹隙蛛(Coelotesundulatussp.nov.)。该新种产于福建省武夷山自然保护区。文内对该新种的鉴别特征进行了简要描述,并附有触肢器图。     

浙江省希蛛属一新种记述：（蜘蛛目：球蛛科）

本文记述在浙江采到的球蛛科希蛛属一新种:钟希蛛Achaearanea campanulata sp.nov.。本新种与A.angulithorax(Boesenberg et Strand)和A.ferrumequnum(Boesenberg et Strand,)两个种近似,它们的巢都似钟形,但外雌器形状有明显的区别。     

中国熊蛛属一新种：（蜘蛛目：狼蛛科）

本文记述采自陕西旬阳坝的熊蛛属Arctosa一新种、即旬阳熊蛛,新种Arctosa xunyangensis sp.nov。     

中国近管蛛属一新种记述(蜘蛛目:近管蛛科)

记述中国近管蛛属1新种:双瓣近管蛛Anyphaena bivalva sp.nov.     

Composting One Invasive Species to Control Another

The need for research and development of effective approaches to weed control continues to increase globally. Adaptive protocols using diverse control methods are often required in ecological restoration as recruitment of native species is highly site‐specific, species‐specific, and experimental. The use of composted weed refuse to control other weeds may be a practical option; yet, the option is not well studied due to the accompanied risk of introducing weed propagules to areas where weed control is desired. Here, we tested the effectiveness of different physical control techniques including the use of mulch made by composting weed refuse on‐site. English ivy (Hedera helix), a non‐native, invasive species in the Pacific northwestern United States, was removed from a heavily invaded site, shredded, and composted. The mulch was compared with other methods of suppressing herb Robert (Geranium robertianum), another invasive species on‐site. Five treatments were tested: flame‐weeding, hand‐pulling, mulching, hand‐pulling followed by mulching, and flame‐weeding followed by mulching. The mulch and pull/mulch treatments were the most effective, reducing G. robertianum cover by 92 and 86% of pre‐treatment levels, respectively, and suppressing G. robertianum 2.9 and 1.6 times more than the control, respectively. The mechanism behind the effectiveness of the mulch is uncertain, but may be related to weed seed burial or the allelopathic potential of the mulch. Composting one invasive species to use as mulch to control another can be effective and merits trial elsewhere.     

侧耳属(Pleurotus)二个野生种与一个栽培种之间亲和性研究

用从校内采集的P 96 6和从德阳市采集的P DY97两个侧耳属野生种与栽培种P 17之间的单核体进行配对具有不亲和性 ,证明了这 3个物种间遗传的独立性。同时通过P 17,P 96 6 ,P DY97各自的单核体自交实验 ,表明这 3个物种的交配系统是双因子控制系统。     

贵州葱属一新种

描述了贵州葱属一新种--梵净山韭(Alliumfan jingshanense),它与太白韭A.prattii相似,但叶具长的叶柄,花白色,内轮花被与外轮花被近等大,花丝短于花被而不同.     

One New Species of Pedicularis L. from Xizang

Pedicularis nyingchiensis H. P. Yang et Y. Tateishi is described as newfrom Xizang, China.     

STBase: One Million Species Trees for Comparative Biology

Comprehensively sampled phylogenetic trees provide the most compelling foundations for strong inferences in comparative evolutionary biology. Mismatches are common, however, between the taxa for which comparative data are available and the taxa sampled by published phylogenetic analyses. Moreover, many published phylogenies are gene trees, which cannot always be adapted immediately for species level comparisons because of discordance, gene duplication, and other confounding biological processes. A new database, STBase, lets comparative biologists quickly retrieve species level phylogenetic hypotheses in response to a query list of species names. The database consists of 1 million single- and multi-locus data sets, each with a confidence set of 1000 putative species trees, computed from GenBank sequence data for 413,000 eukaryotic taxa. Two bodies of theoretical work are leveraged to aid in the assembly of multi-locus concatenated data sets for species tree construction. First, multiply labeled gene trees are pruned to conflict-free singly-labeled species-level trees that can be combined between loci. Second, impacts of missing data in multi-locus data sets are ameliorated by assembling only decisive data sets. Data sets overlapping with the user’s query are ranked using a scheme that depends on user-provided weights for tree quality and for taxonomic overlap of the tree with the query. Retrieval times are independent of the size of the database, typically a few seconds. Tree quality is assessed by a real-time evaluation of bootstrap support on just the overlapping subtree. Associated sequence alignments, tree files and metadata can be downloaded for subsequent analysis. STBase provides a tool for comparative biologists interested in exploiting the most relevant sequence data available for the taxa of interest. It may also serve as a prototype for future species tree oriented databases and as a resource for assembly of larger species phylogenies from precomputed trees.     

Stomatal and Mesophyll Limitations to Photosynthesis in One Evergreen and One Deciduous Mediterranean Oak Species

In the evergreen Quercus rotundifolia and the co-existing deciduous Q. faginea we studied the diurnal variations in photosynthetic capacity (P _max), measured as the rate of O₂ evolution at photon and CO₂ saturation, and in the rate of net CO₂ assimilation (P _N) in the field during the period of maximum photosynthetic activity. Our aim was to check the contribution of stomatal and non-stomatal limitations to the diurnal variation in photosynthesis, and to study the differences between both species. Q. faginea leaves displayed lower mass per unit area and higher nitrogen content than Q. rotundifolia leaves. The maximum stomatal conductance and P _N in the field were higher in Q. faginea than in Q rotundifolia. Also P _max of Q. faginea was higher than that of Q. rotundifolia. Both species attained in the field a high percentage of the P _max (around 82 % for Q. faginea and 73 % for Q. rotundifolia). This indicates reduced stomatal limitation of photosynthesis under favourable conditions, especially in Q. faginea. P _N underwent a sharp decrease towards mid-day in association with increase in the atmospheric vapour pressure deficit and decrease in the leaf water potential. P _max was also reduced during mid-day. This demonstrated the contribution of mesophyll limitations to the P _N in the two species under stress. The mesophyll limitation of photosynthesis seemed to be similar for both species, independently from the differences in leaf traits between them.     

木兰科植物染色体数目报道

木兰科5种（含笑属4种、木莲属1种）、1杂交种植物染色体基数均为x=19,且都是二倍体2n=38,未见多倍体和非整倍体.其中4种和1杂交种的染色体数目为首次报道.     

重庆赤车属一新种和楼梯草属二新种

描述了自重庆市江津区四面山发现的荨麻科赤车属一新种和楼梯草属二新种：（1）四面山赤车,与融安赤车近缘,区别在于新种的叶的二级脉较少,2枚雌花被片有短角状突起,以及长圆形瘦果;（2）稀柱毛楼梯草,可能与托叶楼梯草近缘,区别在于新种的叶较小,雌总苞苞片,以及雄、雌小苞片均在背面具龙骨状突起,柱头由只3~4根毛组成;（3）四面山楼梯草,与长尖楼梯草近缘,区别在于新种茎的顶端被短柔毛,雄头状花序的花序梗较短,以及雄总苞苞片呈条状船形,背面具龙骨状突起。     

One New Species of Mecodium (Hymenophyllaceae) from Guangxi

One new species of the genus Mecodium, M. paramnioides H. G.Zhou et W. M. Chu, is described from Guangxi, China.