归并阴山荠变种的说明

The author examined the type of Cochlearia acutangula O.E.Schulz, G. Giraldi 2423, and found that Yinshania albiflora is conspecific with the former. Therefore the reduction of Yinshania albiflora(=Yinshania acutangula var. albiflo-ra) to Yinshania acutangula as a synonym is made.     

关于阴山荠属的模式

When the genus  Yinshania Ma et Y.  Z. Zhao  was published,  it had only a single species, Y. albiflora Ma et Y.  Z.  Zhao which was indicated as the type of the genus (Acta Phytotax. Sin. 1979).  Y. Z. Zhao 155.  was indicated as the type specimen of Y.  albiflora. It is adequate to cite Y. albiflora Ma et Y.  Z. Zhao as the type of genus Yinshania Ma et Y. Z. Zhao. In a revision (Acta Phyto- tax.  Sin.  25(3): 204-219, 1987) Y.  H. Zhang made  a combintion,  Yinshania acutangula (O. E. Schulz) Y.  H. Zhang (=Cochlearia acutangula O. E. Schulz) and reduced Yinshania albiflora Ma et Y. Z. Zhao as a variety of Y. acutangula,i. e. Y. acutangula var. albiflora (Ma et Y. Z. Zhao) Y. H. Zhang. She is uncorrect, however, when she cited Y.  acutangula (O. E. Schulz) Y. H .  Zhang as the type of the genus Yinshania Ma et Y. Z. Zhao. It should be cited as follows: Yinshania Ma et Y. Z. Zhao      Typus generis: Yinshania albiflora Ma et Y. Z. Zhao (=Yinshania acutangula(O. E. Schulz) Y. H. Zhang var. albiflora (Ma et Y. Z. Zhao) Y. H. Zhang)     

中国水生植物新记录属——钻叶荠属(十字花科)

 报道中国十字花科一新记录属¾钻叶荠属Subularia L. 及一新记录种¾钻叶荠S. aquatica L.。     

棒毛荠属名模式的考证与订正

The genus Cochleariopsis Y.H. Zhang was described in 1985, with C. zhejiangensis Y. H. Zhang, the only member of the genus, as its type. However, this species had been published by O.E. Schulz earlier in 1923, named Cochlearia warburgii O.E. Schulz. Hence, this species is not new one, and the type of the ge-nus should be Cochleariopsis warburgii (O. E. Schulz)L. L. Lu .     

北京——一种新型油料作物

荠蓝是北京康福多生物技术发展有限公司利用现代生物技术与传统选育种相结合的技术路线，历经十余年精心培育而成的一种高产优质新型保健油料作物。荠蓝综合农艺性状良好，抗寒，耐干旱、耐贫瘠、病虫害较轻，含油率达36％，油中a-亚麻酸含量高达34％，亚油酸18％，天然维生素E达54mg／100g。荠蓝的培育和产业化项目是现代生物技术在农业发展上的一次实际应用，已经于2003年正式立项为北京市火炬计划项目。     

阴山北麓地区植被覆盖动态时空分析

阴山北麓地区是我国典型的生态脆弱带及北方重要的生态屏障,监测其植被覆盖变化是研究该地区以及农牧交错带对全球变化响应问题的基础与切入点.本文基于1998年～2003年该地区SPOT-4/VEGETATION的S10数据集,通过分析年均NDVI、年最大NDVI、NDVI变化值、NDVI变化率等指标,得出:①全区年最大NDVI与全区年均NDVI具有可替代性;②1999年～2001年的全区年最大NDVI连续减少,而后两年连续增加,2003年情况与1998年基本持平;③林地、草地和耕地的年最大NDVI和年内变化幅度都是耕地＞林地＞草地,而6年间年最大NDVI变化幅度是林地＞耕地＞草地.2003年林地和耕地的年最大NDVI较1998年分别有微弱和较显著增加,而草地仍有较显著减少;④2001年较1998年的年最大NDVI除达茂旗中部、多伦县东部和商都县东南部少数地区有所改善外,其他大部地区呈现严重退化和显著减少;2003年较2001年除达茂旗西北部、多伦县东部零星地区呈现退化和减少外,其他所有地区都有中高度的改善和显著增加;2003年较1998年西北部有中度退化和显著减少,其他地区退化与改善并存.     

阴山北麓地区地下水合理开发利用与国土整治

内蒙古阴山北麓地区是我区重点贫困地区,由于自然条件恶劣,生产方式落后,地区经济发展速度十分缓慢,随着国民经济的高速发展,对水资源的需求量也日益增长,因此,合理开发利用地下水资源,并进行国土整治规划,可有效地促进该区经济快速增长,尽快脱贫致富.     

阴山文化特色文献馆藏建设研究

对如何建设阴山文化特色文献馆藏,特色藏书体系的形成、文献搜集范围及有效的搜集方式作了介绍,并就如何深化图书馆阴山文化特色文献馆藏提出了自己的见解。     

中国薯蓣属细胞分类的研究——染色体数与该属起源和演化

本文继续报道了薯蓣属(Dioscorea L.)块茎类5个组(sect．  Combilium Pr．et Burk.，Sect. Lasiophyton  Pr．  et  Burk.，  Sect.  Opsophyton  Uline，  Sect． Shannicorea  Pr.  et  Burk.，  Sect. Enantiophyllum Uline)23个种和变种的染色体数，并对一些分类群进行了讨论。它们都是基数为10的多倍体，是本属进化的类型。  根据染色体数的演化和二倍体种类的地理分布，我们推论我国横断山脉地区可能是薯蓣属的起源中心。     

内蒙古顶冰花属（百合科）一新种

报道了产于贺兰山的顶冰花属（百合科）一新种——贺兰山顶冰花Gagea alashanica Y. Z. Zhao & L. Q. Zhao。该种因柱头头状，鳞茎外皮上端向上延伸成圆筒状，抱茎，无附属小鳞茎，植物除基生叶外，茎上具有3-4枚附生叶，无明显总苞片而与新疆顶冰花G. neopopovii Goloskokov相似，但基生叶2枚，半圆筒形;鳞茎外皮向上延伸较短，长约2. 5cm，易于区别。     

内蒙古腺鳞草属（龙胆科）一新种——红纹腺鳞草

报道了产于内蒙古的腺鳞草属（龙胆科）一新种——红纹腺鳞草Anagallidium rubrostriatum Y. Z. Zhao, Z. Y. Zhu & L. Q. Zhao。 该种因花4基数，花瓣中下部具2个腺窝，外侧中央具角状突起，花丝基部背面两侧具流苏状长柔毛而与A. dichotomum (L.) Griseb.相似，但因花冠橙黄色，具红色脉纹，叶质厚，多皱，边缘稍成皱波状而不同。     

沙棘属的新发现

 本文报道了沙棘属的2个新组：即无皮组Hippophae和有皮组Gyantsenses，1个新等     级种H.gyantsensis(Rousi)Lian和中亚沙棘H.rhamnoides L．subsp．turkestanica Rousi  在     甘肃省的新分布, 同时附有该属的分组和分种系统检索表，记述了沙棘属的一个新的分类方案。     

中国葫芦科植物志资料——雪胆属

the present paper is a meterial of the genus Hemsleya Cogn. for flora of China-Cucurbitaceae.      The genus Hemsleya was established by C. A. Cogniaux in 1889.  By 1982 about 7 species had been discovered in China, and most of them are mainly distributed in S. W. China, particularly in Yunnan and Sichuan.  Their tubers have been used as a folk medicine for a long time.  However, we began to search for them, and meanwhile collect and cultivate them, only about ten years ago.  After a general survey and taxonomical study, 20 species of Hemsleya are recorded from Yunnan in the paper.  Among them 18 species and 3 varieties are new. All the types are kept in Herb. KUN.      According to the characters, of corolla and fruit also the seed condition, widely or narrowly winged, proposed are four sections, namely: Sect. I. Craciliflorae; Sect. II. Amabiles; Sect. III. Carnosiflorae and Sect. IV. Hemsleya, among which 3 are new.     

苹果属花粉形态特征及其分类学和进化意义

 本文用扫描电镜观察了苹果属Malus 26种及5个杂种的花粉形态，描述了外壁纹饰形态特征的 变化类型，并对其进化趋势作了推论，指出外壁纹饰类型具属内分组意义。苹果属花粉在形状。大小、沟孔位置及数量、外壁纹饰等方面都十分相似。外壁纹饰的主要演化趋势可能是：由密的细条纹型到具有穿孔的、较少条纹型。杂种的外壁纹饰对于判断亲本种的关系有一定意义，属内种间的杂合导致了多倍体种、新变种、栽培种的大量出现，甚至是新种产生的方式。     

岩白菜属概要

In this paper the classification of the genus  Bergenia Moench is  provided, its geographic distribution analysed, and the phylogeny also traced.   Based  on an analysis of morphological characters such as leaves, ocreas, branches of inflorescences, Pedicels, hypan- thium, sepals, and glandular indumentum, thi genus is divided into 3 sections: 1. Sect. Scopu- losae J. T. Pan, sect. nov., 2. Sect. Bergnia, 3. Sect. Ciliatae (A. Boriss.) J. T. Pan, stat. nov. The Sect. Scopulosae J. T. Pan may be considered as the primitive one, while Sect. Ciliatae (A. Boriss.) J. T. Pan may be regarded as the advanced one, with Sect. Bergenia in between.         So far, the genus Bergenia Moench comprises 9 species in the total.  Southeast Asia and North Asia (south and east Siberia, USSR) each have only 1 species, West Asia (Afghanis- tan) has 2, Central Asia (Kirghizia-Tajikistan-Uzbekstan area, USSR) 3, South Asia 4 (Nepal has 4, India, Pakistan and Kashmir area each has 3, Bhutan and Sikkim each has 2), East Asia 6.  In East Asia, Mongolia and Korea each have only 1 species, but China has 6 (includ- ing endemic species 2 and new species 1).  Sichuan Province and Xizang Autonomous Region each have 3, Yunnan Province 2, Shaanxi Province (Qinling Mountains) and Uygur Autono- mous Region of Xinjiang each have only 1.        Thus the distribution centre of this genus  should be in the region covering Si- chuan, Yunnan and Xizang. Moreover, it is noteworthy  that Bergenia scopulosa T. P. Wang in Sect. Scopulosae seems to have retained primitive characters,  for exa- mple, non-ciliate leaves and ocreas, glabrous pedicels, hypanthium and  sepals,  and this primitive species is found in Qinling Mountains and Sichuan.  According to the distribution of the primitive species, the author suggests that the centre of origin of  this genus be in the region covering Qinling Mountains and Sichuan.     

我国沙拐枣属的分类与分布

我国沙拐枣属共24种，占本属的2／3。亚洲中部是该属的起源地。我国是该属分布区的最东端，它主要分布在新疆和甘肃等省(区)。