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1.
本文总结了2020年发表的中国蜘蛛新分类单元和中国分类学者发表的国外蜘蛛新分类单元。基于国内标本, 2020年共发表中国蜘蛛223个新分类单元, 其中中国学者在12种期刊的56篇文章中命名了1新亚科、12新属和201新种, 国外学者命名了9新种, 合计210新种。云南是发现新种数量最多的省份, 占全国发现新种总数的38.1%。基于缅甸等12个国家标本, 2020年中国分类学者发表了外国蜘蛛95个新分类单元, 包括2新科、7新属和86新种。本文还总结了过去5年中国分类学者对全球蜘蛛分类的贡献, 2016‒2020年有1位中国学者发表771个新分类单元。 相似文献
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Ferdinand Bohlmann Pradip K. Mahanta Jasmin Jakupovic Ramesh C. Rastogi Arvind A. Natu 《Phytochemistry》1978,17(7):1165-1172
An investigation of Inula helenium, I. royleana, I. salicina and I. bifrons afforded in addition to known sesquiterpene lactones 20 new lactones, the eudesmanolides 3, 6 and 8–12, the germacranolides 14–18 and 20–22, the guaianolides 23 and 25, the pseudoguaianolide 26, the xanthanolides 28 and 32 and the cyclopropane analogue 30. Structures and configurations of these new compounds were established by extensive PMR studies and by some chemical transformations. Some of the investigated species contain besides the widely distributed pentaynene 33 several known thymol derivatives together with a new one (40). 相似文献
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本文描述采自陕西的环蛱蝶属1新种-周环蛱蝶Neptischouisp.nov.;将黄环蛱蝶伊洛亚种NeptisthemisilvsFuhstorfer提升为种,即伊洛环蛱蝶NeptisilvsFruhstorfer,认为黄环蛱蝶台湾亚种NeptisthemisnieriNomura应为伊洛环蛱蝶NeptisilvsFruhstorfer的1个亚种,描述了伊洛环蛱蝶的1新亚种-四川亚种Neptisi 相似文献
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Ferdinand Bohlmann Christa Zdero Michael Grenz Autar K. Dhar Harold Robinson Robert M. King 《Phytochemistry》1981,20(2):281-286
The investigation of nine Baccharis species afforded, in addition to known compounds, three new clerodane derivatives related to bacchotricuneatin B, two ent-labdane derivatives, two 3-acetoxyflavanones, a benzofuran derivative and a chromene. The overall picture of the chemistry of this large genus is still not very clear. 相似文献
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Ferdinand Bohlmann Pradip Kumar Mahanta Albert Suwita Antoinette Suwita Arvind Anant Natu Christa Zdero Wolfgang Dorner Dorothea Ehlers Michael Grenz 《Phytochemistry》1977,16(12):1973-1981
The investigation of twelve further species of the Eupatorium complex affords four new germacrolides and seven guaianolides together with new thymol and p-hydroxyacetophenone derivatives. The structures of these compounds have been elucidated by spectroscopic methods. Chemotaxonomic aspects of these findings are briefly discussed. 相似文献
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The investigation of two further Senecio species afforded two new furanoeremophilanes, four eremophilanolides and a new hydroxyeremophilane. The structures of two furanoeremophilane, isolated before, have been revised. 相似文献
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Investigation of a further 27 Euryops species affords, besides known compounds, 55 new furanoeremophilanes together with several other compounds. The configuration of six furanoeremophilanes earlier given as 10β-H has to be changed to 10α-H. Furthermore 9 new eremophilenes were isolated; the configurations of four compounds of this type isolated before have had to be changed. One of the eremophilenes is esterified with 3-methylpent-3(E)-enoic acid, not found before in nature. Two hemiacetals, which are probable precursors of the furanoerephilanes, and a corresponding lactone are also present. Furthermore two benzylic esters, cis-caryophyllene, a bicyclo-germacrene derivative, and a new oplopanone derivative have been found. The structures are elucidated mainly by spectroscopic methods together with some chemical transformations. From the chemotaxonomic viewpoint, the high concentration of very variable furanoeremophilanes may be important. The proposed differentiation into sections however can not be clearly correlated with the chemical constituents, though some taxonomic conclusions seem to be supported by the chemical evidence. 相似文献
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本文总结了2021年国内外学者发表的中国鳞翅目新分类单元的情况。经过统计, 2021年共发表与中国鳞翅目物种相关的论文104篇, 专著1部, 涉及新分类群230个, 其中新属7个, 新种215个, 新亚种8个; 发表中国新记录属9个、中国新记录种78个(包括2亚种)、新组合31个; 提出4个种的异名, 2个种被赋予新名。新种(亚种)隶属于34科。云南省发表的新物种数和新记录物种数明显高于其他地区, 分别占全国发表总数的36.8%和39.7%。2021年我国南方新物种和新记录种发表数量仍然显著高于北方。 相似文献
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报道钉孢属Passalora Fr.的1个新种,日本防己钉孢Passalora cocculi-trilobi,1个新组合,漆钉孢P. rhoidis和2个新名称,梾木生钉孢P. cornicola,穿龙薯蓣钉孢P. dioscoreae-nipponicae。文中提供了各个种的形态描述、绘图及讨论,新种还提供了拉丁文描述。研究的标本包括模式标本保存在中国科学院菌物标本馆(HMAS)。 相似文献
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Ferdinand Bohlmann Jasmin Jakupovic Robert M. King Harold Robinson 《Phytochemistry》1980,19(8):1815-1820
An investigation of Marshallia obovata afforded, in addition to known thymol derivatives, one new ester. Furthermore six new chromone derivatives, all prenylated, were present together with the known spathelia chromene. The main constituent was a flavan already isolated from M. grandiflora but five new flavans were also isolated. Besides other widespread compounds a tetraester of inositol was isolated in minute amounts. All the structures were elucidated by spectroscopic methods or chemical transformations. Surprisingly, even the main 4-methoxyflavan could be split by periodic acid. 相似文献
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The investigation of two species of Lasthenia afforded two new guaianolides and a new bisabolone derivative, in addition to already known compounds. The presence of an eremophilenic acid in these plants is remarkable. The results are discussed chemotaxonomically, since the tribal position of this genus is still debated. 相似文献
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本文记述从长薄鳅和斑鳜胃内采到的半尾科Hemiuridae吸虫一新属新种-薄鳅副指腺吸虫Paralecithochirium leptobotiae gen.et sp.nov.。新属以其虫卵的两端各具一根细长的卵丝、卵黄腺和卵巢位于尾部略前,子宫盘曲于卵黄腺之前等特征而区别于近似的指腺属Lecithochirium. 相似文献
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本文记述北部湾蟹类中的1新种及3新记录:Philyra adamsi Bell. 1855, Achacus lacertosus Stimpson, 1857, Xenocarcinas longicornis sp. nov., Neoxanthops lineatus(A. Milne-Edwards, 1867) 相似文献
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The investigation of two further South African Athanasia-species afforded, in addition to known compounds, sixteen new ones, ten guaianolides, an eudesmanolide, three sesquiterpenes, a new enediynene and a phenylpropane derivative. The structures were elucidated by extensive NMR-studies. Three of the lactones are very unusual in having an endoperoxide bridge; their structures, however, were elucidated only indirectly. These further chemical results on Athanasia again add support to the idea that these species might be better placed in the genus Pentzia. 相似文献
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The investigation of a further Flourensia species afforded in addition to already known compounds 12 new sesquiterpene acids isolated as their methyl esters, a new eudesmane diol, four lupane derivatives and two flavanones, two cinnamic acid derivatives, also isolated as methyl esters and a ketone. The structures are elucidated mainly by spectroscopic methods and by some chemical transformations. Several of the compounds isolated are more or less similar to those isolated from other Flourensia species; the considerable amounts of eudesmanes, however, are unusual. The overall picture of the genus is still relatively uniform. Close relationships to Helianthella are obvious, while to Helianthus, placed in the same subtribe, no clear relations are visible. 相似文献
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Ferdinand Bohlmann Lakshmi Dutta Harold Robinson Robert M. King 《Phytochemistry》1979,18(11):1889-1892
The South American Chrysothamnus species afforded in addition to known compounds six new labdanetype acids, a bisabolene and a germacrene derivative as well as a new flavanone. The structures were elucidated by spectroscopic methods. 相似文献
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本文记述采自新疆的皿蛛科蜘蛛一新届——颚齿蛛属Maxillodens gen.nov.及其一新种——鞭状颚齿蛛M.flageuatus sp.nov。 相似文献
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Abstract The present paper describes 2 new genera, viz:Dimelaphis Zhang, gen. nov and Siciforda Zhang, gen. nov, 5 new species viz: Chaetogeoica ulmidrupa Zhang sp. nov, D. obtusifalcata Zhang, sp. nov., Forda auralenta Zhang et Qiao, sp. nov., F. multicoma Zhang, sp. nov. and S. sexiarticulata Zhang, sp.nov. and 1 new subspecies Paracletus cimiciformis zhanhuanus Zhang, ssp. nov. from China. All type specimens are deposited in the Institute of Zoology, Academia Sinica. 相似文献