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1.
中国婀灰蝶属Albulina─新亚种记述(鳞翅目:灰蝶科)王治国(河南省科学院,郑州450003)关键词灰蝶科,分类,婀灰蝶属,新亚种,中国本文记述河南省婀灰蝶属Albulina1新亚种,模式标本保存在河南省科学院。婀灰蝶秦岭亚种Albulinaor...  相似文献   

2.
中国金藻类新记录   总被引:1,自引:1,他引:0  
1991~1992年,作者在湖北、安徽、江苏、浙江等省进行金藻类植物的研究,发现一些在我国尚未报道的种类,其中隶属于单鞭金藻属(Chromulina)的有1种,棕鞭藻属(Ochromonas)的有2种,金杯藻属(Keqhyrion)的有6种,金瓶藻属(Lagynion)的有1种,锥囊藻属(Dinobryon)的有1变种。这些种类中的有些种类在形态特征上与原种的描述和图示有些不同,但这些差异尚不足建立一个新种类。本文对我国的这些新记录的形态特征及其生长的生态环境进行报道。  相似文献   

3.
徐文芬  王朝红  何顺志 《贵州科学》2005,23(4):43-47,67
通过野外调查、标本采集、分类学研究及资料考证相结合,基本搞清了贵州马鞭草科、玄参科及爵床科药用植物资源的种类与地理分布。结果发现贵州现有马鞭草科药用植物9属53种(含变种和变型)、玄参科28属75种(含变种)、爵床科23属38种,其中1种为贵州地理分布新记录种,48种(含变种)为贵州药用新资源。《贵州中药资源》中记载的13种为误载,6种为拉丁异名。  相似文献   

4.
增补报道了《河南植物志》中未记录的河南产茜草科植物1属、5种、5变种,其中1属(新耳草属Neanotis Lewis)2种(薄叶新耳草Neoatis hirsuta和水团花Adina pilulifera)为河南分布新记录,订正了6个分类群的学名。  相似文献   

5.
广东鼎湖山自然保护区大型真菌区系初析   总被引:12,自引:2,他引:10  
宋斌  邓旺秋 《贵州科学》2001,19(3):43-49
本文对广东鼎湖区自然保护区内的大型真菌区系进行了分析。结果:种类最多的科是口蘑科共有90种(占总数的15%),第二为多孔菌科共有70种(占总数的11.6%),第三为红菇科共60种(占总数的10.0%),含10种或以上的科依次还有牛肝菌科(45种)、丝膜菌科(35种)、粉褶蕈科(26种)、鹅膏科(24种)、伞菌科(24种)、鬼伞科(23 )、刺革菌科(22种)、珊瑚菌科(21种)、炭角菌科(18种)、麦角菌科(12种)、球盖菇科(12种)、松塔牛肝菌科(11种)、猴头菌科(10种);种数(包括种下单位)10种以上的属有13属(占总属数的8.1%)共有种类248种(占全部种数的41.2%),它们依次是红菇属(48种)、粉褶蕈属(26种)、小皮伞属(22种)、鹅膏属(22种)、小小脆柄菇属(19种)、牛肝菌属(18种)、丝盖伞属917种)、小菇属(16种)、炭角菌属(12种)、微皮伞属(12种)、虫草属(12种)、乳菇属(12种)、栓菌属(11种);从属瓣区系地理成分上可分为:(1)广布成分(61.9%)、(2)泛热带成分(15.6%)、(3)旧世界热带成分(0.6%)、(4)热带亚洲-热带美洲分布(1.2%)、(5)热带亚洲-热带非洲成分(0.6%)、(6)北温带布成分(19.5%)、(7)地中海区-西亚至中亚成分(0.6%)、(8)东亚-北美洲成分(0.6%)。结果表明了鼎湖山大型真菌的属以广布成分为主,其次为比例相按近的热带成分与北温带成分。  相似文献   

6.
贵州虎耳草科、蔷薇科药用植物资源的调查   总被引:1,自引:0,他引:1  
通过野外调查、资料收集与标本鉴定相结合,基本摸清了贵州虎耳草科和蔷薇科药用植物的种类与地理分布。结果发现贵州现有虎耳草科16属48种(含变种)、蔷薇科28属170种(含变种和变型),其中1种贵州地理分布新记录种,33种(含变种和变型)为贵州药用新资源。《贵州中药资源》中记载的14种为误载,14种为拉丁异名。  相似文献   

7.
报道了近来发现的10个温州植物区系新资料,包括2个温州分布新记录属:芹菊属(ErechtitesRafin)和金刚大属(CroomiaTorr.exTort.etA.Gray);8个温州分布新记录种:壳斗科的刺叶栎(Quercusspinosa),千屈菜科的耳基水苋(Ammanniaauriculata)、多花水苋(Ammanniamultiflora),玄参科的江西马先蒿(Pediculariskiangsiensis),菊科的梁子菜(Erechtiteshieraciifolius)、费城飞蓬(Erigeronphiladelphicus)和花叶滇苦菜(Sonchusasper),百部科的金刚大(Croomiajaponica).  相似文献   

8.
陕西省蟋蟀总科的初步报道   总被引:3,自引:0,他引:3  
蟋蟀总科(Gryloidea)是普遍的农林害虫,也是中医药重要成份和娱乐昆虫。本文记载陕西省蟋蟀总科4科16属37种,其中有1新属,3新种,27陕西新纪录种  相似文献   

9.
杨定  杨集昆 《广西科学》1994,1(3):32-34
记述采自广西猫儿山鹬虻属(Rhagio)2新种,即无痣鹬虻(R.astictaYangetYang)和拟无痣鹬虻(R.pseudastictaYangetYang),并综述属的特征。模式标本存北京农业大学昆虫标本室。  相似文献   

10.
安徽大别山的野生果树种质资源   总被引:1,自引:0,他引:1  
本文报道大别山野生果树种质资源共计25科44属149种,并逐科简介这些种类及其利用方式。为当地群众发掘和开发利用野生果树种质资源提供依据,现报道如下:1野生果树的科、属、种根据初步调查,大别山野生果树种质资源共计149种,隶属于25科、44属,其中含野生果树较多的科有蔷薇科(45种)、桑种(10种)、葡萄科(10种)、胡颓子科(9种)、猕猴桃科(7种)、壳斗科(6种)、四照花科(5种)、五味子科(5种)、柿树科(5种)、杜鹃花科(5种);在44个属中,较大的属有悬钩子属(Rubus)(17)种、梅属(Prunus)(16种)、葡萄属(Vit…  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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