关于一个“基细胞”的疑问

有或没有基细胞是毛鞘藻属(Bulbochaets)与枝鞘藻属(Oedocladium)的区别之一。这里叙述了Mrozinska在其专著(1985)中,将Oedocladium indicum Kama附图(即模式图)上的一个基细胞错误地移置到Oe.PrescottiiIslam上去的情况。     

山西鞘藻属一新种

山西鞘藻　新种　图1ＯｅｄｏｇｏｎｉｕｍｓｈａｎｘｉｅｎｓｅＹ.Ｊ.ＬｉｎｇｅｔＳ.Ｌ.Ｘｉｅ,ｓｐ.ｎｏｖ.Ｆｉｇ.1Ｓｐｅｃｉｅｓｎｏｖａｐｌａｎｔａｄｉｏｉｃａ,ｎａｎａｎｄｒａ,ｉｄｉｏａｎｄｒｏｓｐｏｒａｅｔｏｏｓｐｏｒａｅｍｅｓｏｓｐｏｒｉｏａｒｅｏ...     

枝鞘藻属(Oedocladium Stahl,1891)在我国的首次发现

首次报道了作为鞘藻目中三个属之一的枝鞘藻属(Oedocladium),即勃氏枝鞘藻(Oedocladium prescottii)。     

枝鞘藻属(Oedocladium Stahl,1891)在我国的首次发现

首次报道了作为鞘藻目中三个属之一的枝鞘藻属(Oedocladium),即勃氏枝鞘藻(Oedocladium prescottii)。     

我国首镒记录的菱形藻属植物

利用透射电你国南近岸水中的微型硅藻时,发现了菱形藻属Ｎｉｔｚｓｃｈｉａ Ｈａｓｓａｌｌ在我国首次记录的５个种,它们是：趋光菱形藻Ｎ．ａｇｎｉｔａ Ｈｕｓｔｅｄｔ,金色菱形Ｎ．ａｕｒａｒｉａｅ Ｃｈｏｌｎｏｋｙ,沟坑菱形藻Ｎｋｌａｃｕｕｍ Ｈ．Ｌａｎｇｅ－Ｂｅｒｔａｌｏｔ,极细菱形藻Ｎ．ｐｅｒｓｐｉｃｕａ Ｃｈｏｌｎｏｋｙ和 毛菱形藻Ｎ．ｐｕｂｅｎｓ Ｃｈｏｌｎｏｋｙ。     

中国丝藻科一新记录属－胶丝藻属

胶丝藻属Ｇｌｏｅｏｔｉｌａ由ｋｕｔｚｉｎｇ于１８４３年建立,在中国为首次报道,我国已知有３种：美丽胶丝藻Ｇ．ｃａｌｄａｒｉａ,普罗胶丝藻Ｇ．ｐｒｏｔｏｇｅｎｉｔａ和略缢胶丝藻Ｇ．ｓｕｂｃｏｎｓｔｒｉｃｔａ．标本自安徽黄山和芜湖。     

蓝细菌Synechocystis sp.PCC6803中叶绿素合成调控类囊体膜重建的研究

利用ＤＮＡ体外重组技术构建了蓝细菌Ｓｙｎｅｃｈｏｃｙｓｔｉｓｓｐ．ＰＣＣ６８０３突变种ＯＲＦ４６９,它的染色体ＤＮＡ缺失ＯＲＦ４６９片段,该突变种在加入５ｍｍｏｌ／Ｌ葡萄糖的ＢＧ－１１培养基中经遮光培养２周后叶绿素全部消失,细胞甲醇提取液光谱中６６５ｎｍ处叶绿互峰消失,６２９ｎｍ处出现原叶绿素酸酯峰,完整细胞光谱仅存在６２０ｎｍ的藻胆蛋白肩峰,细胞的类囊体膜消失,但藻胆体颗粒并未减少;细胞培养物重     

晚奥陶世鞘藻科化石的研究

记述发现于江西省玉山县王家坝三衢山组的鞘藻目化石，并认为该化石可以和现生鞘藻属进行对比。这是迄今为止世界上最古老的鞘藻化石记录，也是我国鞘藻化石的首次报道。     

古尔班通古特沙漠生物结皮微鞘藻分类学研究

实验研究了从古尔班通古特沙漠生物土壤结皮中分离纯化培养出的11株与微鞘藻(Microcoleus)形态接近的丝状蓝藻,通过形态特征、16S rRNA和ITS二级结构相结合的多相分析方法对其进行分类学研究。研究结果表明,实验藻株隶属于微鞘藻科(Microcoleaceae)的微鞘藻属(Microcoleus)和束脉藻属(Symplocastrum),其中包括2个中国新记录种:斯坦微鞘藻(Microcoleus steenstrupii)和细长束脉藻(Symplocastrum flechtnerii),另外还有具鞘微鞘藻(Microcoleus vaginatus)和类似斯坦微鞘藻的存疑物种。藻丝多少与排列方式、细胞大小与末端细胞形状,以及16S rRNA系统发育位置是确定微鞘藻(Microcoleus)与束脉藻(Symplocastrum)属于不同物种的关键依据, ITS二级结构是区分属内不同物种的重要参考。     

中国耳鞘叶蜂属Monardis Enslin分类研究（膜翅目：叶蜂科）

本文报道中国叶蜂科Ｔｅｎｔｈｒｅｄｉｎｉｄａｅ蔺叶蜂亚科Ｂｌｅｎｎｏｃａｍｐｉｎａｅ１新记录属：Ｍｏｎａｒｄｉｓ Ｅｎｓｌｉｎ及３新种：中华耳鞘叶蜂Ｍ．ｓｉｎｉｃａ Ｗｅｉ,ｓｐ．ｎｏｖ．,黄腹耳鞘叶蜂Ｍ．ｓｏｎｇｙｕｎａｅ Ｗｅｉ,ｓｐ．ｎｏｖ．及长柄耳鞘叶蜂Ｍ．ｐｅｄｉｃｕｌａ Ｗｅｉ ｅｔ Ｗｅｎ,ｓｐ．ｎｏｖ．。新种模式标本保存于中南林学院环境与资源系昆虫标本室。     

A new Rhynchospora (Cyperaceae) from Cerro Pirre,Panama

While preparing a treatment of the genusRhynchospora forFlora Mesoamericana, a new species from Cerro Pirre was discovered.Rhynchospora pirrensis, described and illustrated here, can be distinguished from other species in sectionPaniculatae by its long, broad, mostly basal leaves and its punctatepapillose achenes. A key to all the broad-leaved species of that section is provided.     

《中国植物志》(英文版)竹亚科青篱竹属和新小竹属的修订

基于最近的分子系统学研究、近期发表的新类群以及国际植物命名法规的相关条款,对《中国植物志》 （英文版）竹亚科的两个属进行了修订。中国是否有青篱竹属 (Arundinaria)的分布一直是个争论不休的问题。分子系统学不支持广义青篱竹属,因此原置于青篱竹属下的4个种应恢复到巴山木竹属 (Bashania) 中。包括近期发表的新类群在内,巴山木竹属在中国共有10种。西藏新小竹 (Neomicrocalamus microphyllus)是一个没有合格发表的裸名,其正确名称应为新小竹 (N.prainii),而云南新小竹（N.yunnanensis）则可能是梨籐竹属的成员。     

中国凸额水蝇属一新种及两新纪录种记述(双翅目,水蝇科)

记述了中国水蝇科Ephydridae凸额水蝇属Psilopa Fallén1新种及2新纪录种,王氏凸额水蝇Psilopa wangi sp.nov.,褐缘凸额水蝇Psilopa marginella(Fallén,1823)和后斑凸额水蝇Psilopa leucostoma(Meigen,1830),并讨论了它们与近似种的区别。模式标本保存在中国农业大学昆虫博物馆。     

西藏豆科植物一新记录种

作者在从事《青藏高原及其邻近地区植物区系及分布格局研究 (KSCX2 - 1 - 0 6B)》项目研究时 ,对PE所藏青藏高原地区豆科标本进行了全面的整理和鉴定 ,首次发现民和黄芪在西藏有分布 ,本文予以报道并附有该种详细的形态描述     

On the Genus Ceterachopsis (J. Sm.) Ching

eterachopsis was proposed by the senior author as an independent genus of the family Aspleniaceae in 1940 with 2 species. Since then much study on its morphology, anatomy, gametophyte and palynology has been carried out by Nayar, Bir, Chandra & Nayar and Chang et al., and they are of the opinion that the genus like Ceterach, is a comparatively primitive element in the family Aspleniaceae. The queer zigzag patern of cutting of lanceolate fronds appears extraordinary in the family Aspleniaceae, and also suggests its antiquity in evolution. So far only 3 species (C. dalhousiae, C. paucivenosa and C. magnifica) are recognized, the former from W. Himalayas, also known from Africa, while the latter two from W. S. China (Yunnan). However, in the past forty years the Chinese botanists have discovered 2 more species as new in N. W. Yunnan, thus bringing the total known species of the genus up to 5. The present paper is a brief summary on the genus Ceterachopsis, which will be published in detail in the Flora Sinica vol. 4. Pteridologists are also divided in their views regarding the generic status of Ceterachopsis with 5 well-defined species in Yunnan and the East Himalayas. We prefer to mintain it as a genus separate from Asplenium on account of its distinct morphological features. It is to be hoped that more species may come to light in the mountainsin N. W. Yunnan through further exploration now under way.     

中英文版《中国植物志(省沽油科)》的比较

以中文版《中国植物志·第46卷》中收载的省沽油科植物分类群为基础,通过与英文修订版“Flora of China(Vol.11)”中相应分类群进行比较,报道了2部著作中植物分类群的学名和分类位置的变动及收载种类的增减情况,以资正确鉴定和编目应用。     

Electron microscopic observations on a new cell type in the fundus mucosa of the mouse stomach

Summary In the course of electron microscopic investigations of the fundus mucosa of the mouse stomach, a few cells of an unknown type were found by chance in the deep portions of the glands. These cells are characterized by two different kinds of specific granules in their cytoplasm, one of which being large and less dense, and the other one being small and dense. The large less dense granules resemble zymogen granules of the chief cell, which are formed by the rough endoplasmic reticulum and Golgi system. The small dense granules are quite similar to the secretory granules of the basal granulated cell, and are considered to be formed in the Golgi complex. Release figures of the small dense granule were not observed, numerous granules, however, were observed in close contact with the basal cell membrane. The occurrence of these two kinds of granules in one cell suggests that the basal granulated cell and the zymogenic cell originate from the same entodermal stem element.The author cordially thanks Professor Dr. Hisao Fujita, Department of Anatomy, Hiroshima University School of Medicine, for his kind advices and criticisms.     

中国海南兰科植物的增补与修订

据海南植物志(1977)记载,海南有兰科植物58属143种及2变种,其后多篇文章论及一些种属,标本亦有较多的增加。本文根据现有标本和文献资料对海南兰科植物作一增补与修订,共涉及36属超过57种,包括19个新记录种、2个新种、1个新各称、5个新异名和许多种的名称变动。总计海南岛共有兰科植物68属、178种3变种。     

New taxa and combinations inAlchemilla for the Flora of Slovakia and the flora of Czechoslovakia (1)

Names for two subspecies and 7 species are validated, in a supplement to the author's account ofAlchemilla for the Flora of Slovakia and the Flora of Czechoslovakia. Aspects of the taxonomy, variation, ecology, and geographical distribution of the taxa published as new are considered briefly.