中国车前属植物一新记录

首次报道圆苞车前Plantago ovata Forsk．在中国的归化新记录,并提供该种的详细描述。     

广西螺序草属一新种

 One new species of the genus Spiradiclis (Rubiaceae), S. longibracteata S. Y. Liu  et S. J. Wei from Guangxi Autonomous Region is described in this paper.     

广西半蒴苣苔属（苦苣苔科）一新种——红苞半蒴苣苔

报道了在广西发现的苦苣苔科半蒴苣苔属Hemiboea一新种,即红苞半蒴苣苔H. rubribracteata Z. Y. Li & Yan Liu。该新种叶形与贵州半蒴苣苔H. cavaleriei Lévl.相近,不同在于茎较粗且坚硬,总苞红色,萼片较长,花冠外面白色,无毛,下唇3裂至中部。     

中国卷柏属一新记录种——拟大叶卷柏

报道了拟大叶卷柏Selaginella decipiens Warb. 在中国广西和云南的分布。该种的分布原来只知道在越南北部和印度东北部。它在形体上近似大叶卷柏S. bodinieri Hieron.,而侧叶形状和秦氏卷柏S. chingii Alston的一致,但以其较大的、近全缘的侧叶,以及较大的腋叶和较短的孢子叶穗同上述两种不同。     

云南竹亚科一新种

A new species of the genus Neosinocalamus Keng f., N. yunnanensis, is described in this paper.     

云南松居群核型变异及其分化研究

在分析研究6个云南松居群核型变异的基础上,应用常规统计方法和巢式分析方法,在常规染色体水平上探讨云南松居群间、个体间和细胞间的变异式样及其分化。结果如下:(1)云南松居群核型变异不显著,6个居群的核型公式均为2n=24m(6～10SAT),核型类型均为1A。(2)云南松居群仅相对长度系数、臂比和次缢痕数目及其分布有小的变化。6个居群染色体相对长度系数(I．R．L)分别为:滇中居群P1=16M2+6M1+2S;滇东南居群P2=14M2+8M1+2S;滇西居群P3=12M2+10M1+2S;地盘松居群P4=14M2+8M1+2S;细叶云南松居群P5=14M2+8M1+2S;云南松与思茅松渗入杂交居群P6=10M2+12M1+2S。(3)巢式方差等级分析表明,云南松染色体结构变异有10％左右来源于居群间,有90％左右来源于居群内个体间或细胞间。     

常山属的初步研究

Dichroa Lour., a small genus of Saxifragaceae, contains about 12 species,ranging from the mainland of S. E. Asia southward to Pacific islands. But most ofthe species are more restricted in distribution. Of the 12  recognized species,  six  areknown from South China and Indochina; three are confined to west and northwestNew Guinea; two are endemic to the Phillipines. Only one species is widely distributedin S. E. Asia.  In the present paper, the genus is divided into two sections  and twoseries based on the number of stamens and the characteristics of the ovary.  One spe-cies is described as new.     

Molecular motor assembly of a biomimetic system

Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.