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Bulletin of Botanical Research 2002 Vol.22 Please wait a minute... For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select STUDIES ON THE GENUS BORZIA OF DALIAN ZHANG Shu-mei Bulletin of Botanical Research    2002, 22 (1): 1-3.   Abstract （511）      PDF（pc） （140KB）（318）       Knowledge map    Save Three species of Borzia, B. xishaensis Hua, B. tenius S. M. Zhang, B. dalianensis S. M. Zhang from the coast of Dalian, Liaoning, China, are reported in this paper. B. xishaensis is new to the west Huanghai, B. tenius and B. dalianensis are new species. Related Articles | Metrics Select SOME NEW RECORDED SPERMATOPHYTE FROM FUJIAN PROVINCE TIAN Qi, CHEN Yong, MA Wei-liang Bulletin of Botanical Research    2002, 22 (1): 4-5.   Abstract （578）      PDF（pc） （106KB）（396）       Knowledge map    Save In this paper, the authors report the new records of species and genera from Fujian province. It includes 10 species and 2 genera. These species are Cardamine violifolia O. E. Schulz var. diversifolia O. E. Schulz, Dalbergia millettii Benth., Vicia tetrasperma(L.) Schreber, Meliosma oldhamii Maxim., Hibiscus hamabo Sieb. et Zucc., Viola diffusoides C. J. Wang, Sium suave Walt., Caryopteris incana(Thunb.) Miq. var. angustifolia S. L. Chen et R. L. Guo, Briggsia chienii Chun and Kyllinga monocephala Rottb. The two genera are Sium L. and Briggsia Craib. Among of them, there are two species new recorded to East China. Related Articles | Metrics Select A NEW RECORDED SPECIES TO FLORA OF TIBET ZHU Xiang-yun, OHASHI Hiroyoshi Bulletin of Botanical Research    2002, 22 (1): 6-7.   Abstract （439）      PDF（pc） （101KB）（374）       Knowledge map    Save While identifying legume specimens in PE for executing the project "On the Floristic Region and Distribution Patterns of the Qinghai-Tibet Plateau and Adjacent Areas(KSCX2-1-06B)", the present authors found one species Astragalus minhensis X. Y. Zhu et C. J. Chen new to Flora of Tibet for the first time. With a detailed description is appended to it. Related Articles | Metrics Select NEW VARIETY OF VACCINIUM ULIGINOSUM L. MA Jun-ying, ZHANG Yue Bulletin of Botanical Research    2002, 22 (1): 8-8.   Abstract （622）      PDF（pc） （66KB）（446）       Knowledge map    Save Institute of forest Servey and planning in the davurica region Vaccinium uliginosum L. var. albium J. Y. Ma et Y. Zhang. Related Articles | Metrics Select A NEW VARIETY OF SALIX L. WANG Jing-quan, LI Dian-ming, YUAN Xiao-ying Bulletin of Botanical Research    2002, 22 (1): 9-9.   Abstract （528）      PDF（pc） （65KB）（306）       Knowledge map    Save A new variety of Salix in northeast China is given. Related Articles | Metrics Select TAXONOMIC STUDIES OF CHONDRUS, CHINA ON THE BASIS OF MORPHOLOGY AND rbcL SEQUENCES SU Qiao, LUAN Ri-xiao, AN Li-jia, ZU Yuan-gang Bulletin of Botanical Research    2002, 22 (1): 10-18.   Abstract （311）      PDF（pc） （409KB）（383）       Knowledge map    Save Morphological observations and rbcL sequence analyses of chondrus collected from Pingtan and Zhangpu of Fujian province, Qingdao of Shandong province and Dalian of Liaoning province were made. Total DNA were extracted from fresh or silica gel-desiccated plants and used as templates for polymerase chain reactions. Purified polymerase chain reaction products were directly sequenced. The rbcL sequences were aligned using Clustal X1.8 computer program, then used to calculate distance matrix with Kimura's two-parameter method and construct phylogenetic trees by applying neighbor-joining and Maximum Parsimony analyses using MEGA2.1 computer program. Bootstrap analyses were carried out to evaluate statistical reliability based on 500 resamplings of the data set. The results indicated three Chondrus species in China: Chondrus ocellatus, Chondrus nipponicus and Chondrus armatus. The results also suggested that Chondrus ocellatus which was described from specimen collected at Southeast seashore of China should be Grateloupia imbricata and Chondrus yendoi which was described from specimen collected from Xiao Pingdao, Dalian should be Mazzaella japonica. Related Articles | Metrics Select THE STUDY OF ANATOMICAL STRUCTURE OF STEMS AND LEAVES IN FIVE GRIMMIACEACMOSSES WANG Hong Bulletin of Botanical Research    2002, 22 (1): 19-22.   Abstract （486）      PDF（pc） （395KB）（479）       Knowledge map    Save In this paper, five Grimmiaceae mosses are observed and analized in the aspects of anatomical structure of stem and leaf by means of paraffin wax section and scanning electron microscopy. The cuticular wrinkles, ornamentation and pore on the leaf surface are observed. Meanwhile the stem structure is also studied. Above features are considered to be of faxonomic significance in the bryophtes. The stem of Grimmia elongata Kaulf. is multicarpsular. The filaments are linked together into strip form along the epidermis of antical leaves, while the cuticular ornamentations ventral leaves are with the apperance of radial lobe. The cell content in stems and leaves of Grimmia apocarpa Hedw. is so thick and the cell is dishyaline. The cuticular ornamentations on the costa of this species is streamline. The costa of leaves of Grimmia alpicoda Sw. ex Hedw. are broad and thick and the pores are arranged in ladder-shaped. The scabrous cuficular wrinkles on the ventral surface of leaves are in the ornamentation just like chrysanthemum and the entrance to pores are covered by scale flake. In Grimmia ovalis(Hedw.) Lindh, The hydrome cell developed well and axial part of stem is not distinct; meanwhile the leaf surface is covered densely by rugged papilla and pores which are sinked in depth and arranged in web form are so large. There is a layer of sheathing substances between external cortex and internal cortex in the stem of Gimmia pilifera P. Besuw. The pore's shape on the ventral surface of leaves of this species is packed close together. Related Articles | Metrics Select ULTRASTRUCTURE OF TWO TYPES OF GLANDULAR HAIRS OF SAL VIA FARINACEA BENTH DURING DEVELOPMENT ZHENG Bao-jiang, YU Li-jie, XING Yi, WANG Feng-chun Bulletin of Botanical Research    2002, 22 (1): 23-25.   Abstract （454）      PDF（pc） （455KB）（343）       Knowledge map    Save There are two kinds of glangular hairs in Salvia farinacea Beath:Capitate trichomes and peltate trichomes. For examination under trans-electron microcope, the clear differences were found between capitate trichomes and peltate trichomes in their ultrastructure:the main organelle is endoplasmic reticulum in capitate trichomes while in peltate trichomes is plastid; Subcuticular space in peltate trichomes is larger than in capitate trichomes; The side wall of the stalk cell in peltate trichomes are completely cutinized, while not be found in capitate trichomes;There are more vacuoles in foot cells of capitate trichomes than that of peltate trichomes. Related Articles | Metrics Select CHANGES OF THE NUCLEOLUS DURING CELL CYCLE IN TRITICUM AESTIVUM HE Jie, MIAO Gui-ying, ZHAO Hai-cheng Bulletin of Botanical Research    2002, 22 (1): 26-29.   Abstract （566）      PDF（pc） （376KB）（246）       Knowledge map    Save The changes of the nucleolus during cell cycle in Triticum aestivum were studied by Bernhard staining method. It was observed that in interphase, the nucleolus was heavily stained. Fibrillar centers, dense fibrillar component, granular component could be identified in it. But the chromatin was bleached. The fine RNP granules were distributed at the interchromatin. During prophase, the small RNP granules appeared at the periphery of chromosomes. The larger heavily-stained RNP granules accumulated at the periphery of the metaphase chromosomes and formed a discontinuous "sheath"-like structure. They were not observed at the interior of the chromosomes. This "sheath"-like structure was also observed at anaphase. In telophase, the nucleolar materials were progressively separated from the "sheath" and participated in the formation of new nucleoli. The results showed that the nucleolar materials were transferred directly to the surface of the metaphase chromosomes and formed a discontinuous coat, but not incorporated into the interior of the chromosomes. Related Articles | Metrics Select THE AGGREGATE ROUGH ENDOPLASMIC RETICULA IN COTYLEDON DURING THE DEVELOPMENT OF BUCKWHEAT EMBRYO GAO Xin-qi, WANG Xiu-ling Bulletin of Botanical Research    2002, 22 (1): 30-32.   Abstract （480）      PDF（pc） （269KB）（360）       Knowledge map    Save During the development of buckwheat( Fagopyrum esculentum Moench.) embryo, the aggregate rough endoplasmic reticula(rER) that are bundles or rings rER are observed in the cotyledon cells. We don't think that the appearance of the aggregate rER is the reaction of cotyledon cell to stress condition. Usually, there are some protein lumps beside the aggregate rER. These lumps are not formed in vacuoles or dilated vesicles of rER because they are irregular in shape and not surrounded by membrane. These observations indicate that the aggregate rER can synthesize and transport protein into cytoplasm and accumulate in cytoplasm. Obviously, the efficiency of accumulating storage protein by this way is higher than that of single-stranded rER. Related Articles | Metrics Select STUDIES ON POLLEN MORPHOLOGY OF APONOGETONACEAE SUN Kun, CHEN Jia-kuan, ZHANG Zhi-yun Bulletin of Botanical Research    2002, 22 (1): 33-36.   Abstract （405）      PDF（pc） （382KB）（332）       Knowledge map    Save The pollen morphology of 6 species of Aponogetonaceae was examined with light microscope(LM), scanning electron microscope(SEM) and transmission electron microscope(TEM). Our results provide the following insights:(1) Pollen of Aponogetonaceae is distal-monosulcate, boat-shaped, usually with shallow-reticulate to reticulate sculpturing, but that of Aponogeton junceus Lehm. ex Schlechtd. is spinulate.(2) The exine is composed of three layers, e. g. tectum, columellae and foot layer.(3) Some characters, such as the aperture, spinulae and structure of exine in Aponogetonaceae are identical with Hydrocharitaceae and Butomaceae, but reticulate sculpturing shows connection with Najadales. Therefore, Aponogetonaceae had better be treated as an order itself. Related Articles | Metrics Select EFFECTS OF NaCl STRESSON GROWTH AND CONTENT OF SEVERAL SOLUTES OF WHEAT CULTIVARS WITH DIFFERENT DROUGHT-TOLERANCE ZHANG Hai-yan Bulletin of Botanical Research    2002, 22 (1): 37-41.   Abstract （391）      PDF（pc） （231KB）（341）       Knowledge map    Save Two wheat cultivars(Lumai-14 and Jinhan-47) with different drought-tolerance were treated with NaCl solutions. Effects of NaCl stress on growth and content of several solutes of seedlings were studied. Results showed that NaCl treatment caused a decrease in length of shoots and roots of wheat seedlings, and the degree of decrease was higher in drought-tolerance cultivar(Jinhan 47) than in drought-sensitive one(Lumai-14). Na + contents increased slowly and Na +-exclusion capability in shoots and roots of Jinhan-47 was stronger than that of Lumai-14. Furthermore, higher proline and aminonitrogen contents, a smaller decrease in NO 3 - contents and a relative stability of K + contents in roots of Jinhan-47 were found. These suggests that salt-tolerant ability of Jinhan-47 is much stronger than Lumai-14. Related Articles | Metrics Select STUDY ON THE RELATIONSHIP BETWEEN THE CHANGE OF PROTECTION ENZYME ACTIVITIES AND THE RESISTANT ABILITY TO LOW TEMPERATURE STRESS IN ACACIA MANGIUM WU Guang-hong, ZHAN Fu-jian, LUO Huan-liang, ZHAO Feng, LUO Zhi-wei, MENG Li-ke, HUANG Zhuo-lie Bulletin of Botanical Research    2002, 22 (1): 42-45.   Abstract （569）      PDF（pc） （206KB）（580）       Knowledge map    Save After the plants of Acacia mangium QLD19835 clone were treated by low temperature in phytotrone, the physiology and the enzyme activities changed obviously. When the temperature reduced to -6℃, the cell membranes were damaged and the activity of ATPase decreased, but protein content increased obviously. The activities of SOD, CAT, and POD reduced but sustained in a relatively high level as the plants suffered from low temperature. The results of the experiment indicated that Acacia mangium QLD 19835 clone could have a protective reaction to the damage from low temperature. The high content of solube protein and relatively high level of enzyme activities of CAT, SOD, and POD in plants might be the important reason for high antichilling ability of the plants. Related Articles | Metrics Select PHOTOYNTHESIS AND RESPONSE TO WATER STRESS OF TOBACCO AT THE ROOT EXTENDING STAGE SUN Guo-rong, LIU Bo, ZHAO Guang-wei, LIU De-yu, YAN Xiu-feng Bulletin of Botanical Research    2002, 22 (1): 46-50.   Abstract （439）      PDF（pc） （228KB）（307）       Knowledge map    Save The flue-cured tobacco growth of NC89、LJ851、LJ911 focus mainly on subterranean part in the root extending stage. It is important element of production management to control soil water content reasonably and harmonize growth between root and stem at this stage. Photosynthesis rate reaches peak when relative soil water is at 75%~85%, yet water use efficiency peak value is at 65%~75% that is in favor of tobacco seedling strong growth. Related Articles | Metrics Select DROUGHT-RESISTANT MECHANISM OF TWO EDIFICATOS IN HORQIN SANDY LAND OF NORTHEAST CHINA ZHOU Hai-yan Bulletin of Botanical Research    2002, 22 (1): 51-55.   Abstract （517）      PDF（pc） （233KB）（268）       Knowledge map    Save Measured results of several drought-resistant indexes of Artemisia frigida and Artemisia Halodendron under the conditions of field moisture capacity and water stress showed that:1. Under two soil water conditions A. Frigida has a lower water potential than A. haoldendron and exhibits a relative water deficit, bound water content, ratio of bound water content to free water content and comprehensive drought-resistant index are significantly higher than those of A. halodendron, furthermore the change range of above-mentioned indexes of A. frigida is larger than that of A. halodendron before and after water stress. 2. Under the condition of field water capacity A. frigida has a higher accumulation rate of dry matter and nitrate nitrogen and a hehger nitrate reductase activity than A. halodendron but its soluble protein and chlorophyll contents are lower than those of A. halodendron. Under water stress condition, the protein degradation range of A. frigida is hihger than that of A. halodendron; the proline accumulation content of A. frigida could be 8.2 times what it is before water stress happens, while that of A. halodendron is only 2.2 times as large as its original value;soluble saccharide content of A. frigida could be 1.29 times what it is before water stress happens and that of A. halodendron only increase 0.37 times. Under water stress condition the chlorophyll content of A. frigida is hihger than that of A. halodendron. 3. In the harsh desert environment the transpiration rate of A. frigida in different time of a day is wower than that of A. halodendron and shows a gentle daytime change. Related Articles | Metrics Select ROOTING AND TRANSPLANTING OF TISSUE CULTURED SHOOTS OF TOONA SINENSIS ZHANG Xiao-hong, KANG Bing, CHEN Yan-sheng, CAO Jian-jun, CAO Ning Bulletin of Botanical Research    2002, 22 (1): 56-60.   Abstract （427）      PDF（pc） （212KB）（302）       Knowledge map    Save It was studies that the mains factor in fluencing rooting and transplanting of tissue cultured shoots of Toona sinensis. The results were summarized as follows:the main factor influencing rooting of tissue cultured shoots of Toona sinensis is IBA, and the contents of macronutrients in MS medium come second. The proper rooting medium is single IBA 1.0mg/L in MS medium without macronu-tients. The rooting rates was lowly with high concentration of NAA or IBA in a short time. The proper transplanting period is from March to early July every year. Vermiculites or sands is a good transplanting medium. The key to ensure successful transplantation is exercising plants effectively, proper transplanting medium and time. At the same time it is also important that preventing insects, shading and keeping air humidity. Related Articles | Metrics Select CYTOGEOGRAPHIC STUDIES OF VICIA CRACCA L.IN THE NORTH OF CHINA QU Xiu-chun, LIU Xiang-jun, LI Rui-jun Bulletin of Botanical Research    2002, 22 (1): 61-64.   Abstract （345）      PDF（pc） （185KB）（276）       Knowledge map    Save The comparative study on karyotypes of Vicia cracca L. populations from 8 different regions in the north of China were made. The result showed that the chromosome numbers of the different populations are 12、14 and 24 respectively. The present paper supports the standpoint that 12-chromosome-type comes from 14-chromosome-type through Rorbertsonian translocation. There are not differences on external form between plant individuals with 12-chromosome and 14-chrosome, and they should be treated as the same taxon. The plant individuals with 14-chromosome have discriminating characters on external form and they should be divided into different subspecies or variations. Related Articles | Metrics Select EFFECTS OF ABSORBENTS AND COMPOENTS OF MEDIUM ON VANILLIN BIOSYSTHESIS IN CELL CUTURES OF VANILLA PLANIFOLIA CAO Meng-de, LI Jia-ru, QIN Dong-chun, WANG Jun-jian Bulletin of Botanical Research    2002, 22 (1): 65-67.   Abstract （555）      PDF（pc） （144KB）（556）       Knowledge map    Save This paper reported the effects of absorbents and composition of medium on vanillin biosynthesis in cell cultures of Vanilla planifonia. It was shown that the absorbents XAD-2 and activated charcoal had a marked increasing effect on the accumulation of vanillin, and the activated charcoal had more marked increasing effect than XAD-2;and that the contents of vanillin of Vanilla planifonia cells cultured on the complete MS medium were lower than that on the medium composed of mineral salts. It was suggested that two-step culture should be taken during the production of vanillin of Vanilla planifonia cells in batch suspension culture. Related Articles | Metrics Select CLASSIFICATION AND NUTRITIOUS VALUE OF KOTUR AMUT( PYRUS COMMUNIS. L) Ablet Abdureshit Bulletin of Botanical Research    2002, 22 (1): 68-71.   Abstract （594）      PDF（pc） （180KB）（246）       Knowledge map    Save This paper, according to historical facts, confirmed that Xinjiang is a home of pears since the ancient times and that Kotur Amut is a local species. According to it's morphological characters and structures Kotur Amut does not belong to Pyrus armeniacaefolia, but belongs to Pyrus communis. L. By analyzing nutritious value in quality and quantity, it's chemical composition was cleared and confirmed that Kotur Amut is a local fruit with relatively high nutritious value. Related Articles | Metrics Select STUDIESON PHYLOGENY OF PAEONIA SECTION MOUTAN SUBSECTION VAGINATAE ZHOU Ren-chao, YAO Chong-huai Bulletin of Botanical Research    2002, 22 (1): 72-75.   Abstract （602）      PDF（pc） （192KB）（404）       Knowledge map    Save All the 6 species in Moutan subsect. Vaginatae, originating in China, have a great effect on cultural Paeonia suffruticosa in China, Japan, America and Europe. On the bases of the morphological comparison, combined with the evidences of pollen, chromosome, protein and DNA studies, the authors put forward to a possible phylogenetic pathways as follow:(1) Paonia qiui→ P. yinpingmudan→ P. jishanensis→ P. decomposita subsp. rotundiloba→ P. decomposita subsp. decomposita,(2) P. qiui→ P. ostii→ P. rockii subsp. rockii→ P. rockii subsp. taibaishanica. In addition, the phylogenetic status of subsect. Delavayanae was also discussed. Related Articles | Metrics Select A STUDY OF DOMINANT POPULATION STRUCTURE AND INTERSPECIFIC ASSOCIATION OF HEPTACODIUM MICONIOIDES COMMUNITY IN TIANTAI MOUNTAIN OF ZHEJIANG PROVINCE JIN Ze-xin Bulletin of Botanical Research    2002, 22 (1): 76-83.   Abstract （341）      PDF（pc） （324KB）（298）       Knowledge map    Save The author analyzed dominant population structure and distribution pattern of the Heptacodium miconioides community in the Tiantai Mountain of Zhejiang Povince. The results showed that the age-class in majority dominant populations of the community was incomplete and the age structure was declining, and that the Heptacodium miconioides forest was an unstable community; that the distribution patterns of dominant populations in various plots were of clump distribution. Using veriance ratio(VR) and x 2 text by 2×2 contingency table, the paper analysed the overall relatedness between 18 major tree varieties of the tree-layer and 20 major varieties of the shrub-layer, and the interspecific association. It hence came to the following conclusion:In the tree-layer, there was unremarkable positive relatedness on the whole, and there were more species pairs of positive association than those of negative association; There was remarkable positive relatedness among the major tree varieties of the shrub-layer, and there were obviously more species pairs of positive association than those of negative association. Related Articles | Metrics Select STUDY ON POPULATION DIAMETER STRUCTURES OF TREE AND SHRUB DOMINANT PLANTS IN QUERCUS LIAOTUNGENSIS FOREST IN DONGLING MOUNTAIN IN BEIJING ZHANG Wen-hui, ZHAO Ze-hai, SUN Hai-qin, ZU Yuan-gang Bulletin of Botanical Research    2002, 22 (1): 84-90.   Abstract （389）      PDF（pc） （328KB）（309）       Knowledge map    Save The typical Quercus liaotungensis forest communities along 364m long sample belt along the slope of Dongling Mountain in Beijing have been divided to be the lower, middle and higher 3 parts. The 8 dominant plant population diameter(or base diameter) structures and dynamics of Quercus liaotungensis, Fraxinus rhynchopylla, Betula dahurica, Acer mono, Lespedeza biocolor, Abelia biflora, Rhododendron micranthum, Spiraea pubescens populations in the community have been studied systemically on statistics along environment grade. Except for the Betula dahurica population that are declining, the other populations all show developing or stable status which have more numbers of younger seedling. Quercus liaotungensis populations show stronger adapted ability as altitudes increase since diameter structures are reasonable. The Fraxinus rhynchopylla, Acer mono populations can replace each other on the size and density along slope. In shrub layer, except Rhododendron micranthum population, Lespedeza biocolor, Abelia biflora and Spiraea pubescens have more numbers of seedlings, and their diameters structures are reasonable. In this area, if the disturbance from human being could be stopped, the Q. liaotungensis forest system will develop to be more mature status. Related Articles | Metrics Select ANALYSES ON THE FLORA AND STUDIES ON THE FUNCTION OF MEDICINAL PTERIDOPHYTES IN JINGGANGSHAN NATURE RESERVE DENG Xian-lan, HUANG Cai-xia Bulletin of Botanical Research    2002, 22 (1): 91-97.   Abstract （468）      PDF（pc） （266KB）（526）       Knowledge map    Save The investigation and study of the medicinal pteridophyfes in Jinggang Mountain Nature Reserve indicates that there are 37 families, 63 gentra and 134 species(including varieties and torms), account for 68.7%of the total species of medicinal pteridophytes in Jiangxi province. Thefloral analgsis shows that the mechicinal pteridophyfes flora of thegeographical element is very complex, With obvious tropical quality andabundant temperate elements. the medicinal pteridophytes' ecologicaldistribution is wide spread. Related Articles | Metrics Select STUDIES ON CHARACTER AND FEATURE OF SEED PLANTS FLORA OF WULINGSHAN REGION CHEN Gong-xi, LIAO Wen-bo, AO Cheng-qi, LIU Wei-qiu, ZHANG Hong-da Bulletin of Botanical Research    2002, 22 (1): 98-120.   Abstract （452）      PDF（pc） （911KB）（875）       Knowledge map    Save Wulingshan region is located between 27°28'N and 30°05'N, 109°02'E and 111°33'E, from to 189.4m to 2570m above sea level, with an area of about 100, 000km 2. In this paper, some statistics and comparatively intensive analysis on native seed plants of Wulingshan region were given on family, genera and species, the results show that:(1) The flora is rather rich, there are 4119 species belonging to 1005 genera and 201 families. In which, 36 species belonging to 6 families and 19 genera are Gymnosperm plant, 3447 species belonging to 166 families and 781 genera are Dicotyledoneae plant, 636 species belonging to 29 families and 205 genera. Those families and genera which consits of one or less species takes lagest proportion. The tree plants are also rich(1972 species);(2) Geographical elements of family are dominant in tropical(91 families), 40 families belonging to Cosmopolitan family and 70 families to Temperatical family. Cosmopolitan family and Tropical family including a lot of species, but mostly typical families are subtropical and temperate familiy(especially E. Asia and Endemic to China);(3) there are 14 areal-types of 15 types of genera to China(C. Y. Wu, 1991), in which N. Temperate, Pantropic and E. Asia are dominant. 64 genera(takes 6.83% of total) are Endemic to China, some of them origin in Wulingshan region and its neighbors. Temperate genera are more over teopical genera;(4) There are 15 areal-types of species in the region, most of them belonging to E. Asia and Endemic to China which dominanted in subtropical. There are 2682 species belonging to China endemic elements. In which, 126 species belonging to endemic to Wulingshan region, 675 species belonging to endemic to C. China, other 1881 species can be divide into 10 subtypes distributed in every area of China. The geographical elements of species have decided the character and feature of Wulingshan region seed-plant flora:Based on archaic tropical flora and changed into temperate or subtropical mountanious flora of E. Asia. According to some East-Asian elements distribution patterns and migration routes, Wulingshan region is not only a part of the center of East-Asian elements but also a channel(Wulingshan hall) located on the middle of migration route in west-east direction of East-Asian elements, so we can think it a key region of E. Asia flora. Related Articles | Metrics Select UTILIZATION AND DEVELOPMENT OF SCHISANDRA CHINENSIS FOR NOURISHING FOOD TO MAINTAIN HEALTH NIE Jiang-li, FU Yu-jie, WANG Zhen-yu, ZHU Yuan-gang, LI Jiang Bulletin of Botanical Research    2002, 22 (1): 121-124.   Abstract （523）      PDF（pc） （239KB）（435）       Knowledge map    Save Schisandra chinensis(Magnoliaceae) is a perennial deciduous woody liana with valuable medicinal materials in Heilongjiang Province. Schisandra chinensis grows in the north of China and is usually named:"northern S. chinensis". Therefore S. chinensis in Heilongjiang Province is a northern S. chinensis. It is of the best quality in medicinal S. chinensis in China and mainly distributes in mountains Xiao Xing An Ling, Wan Da Shan, Zhang Guang Cai Ling, Lao Ye Ling and a little in the south of Da Xing An Ling. Resources of S. chinensis in Heilongjiang Province are gradually reducing now. So at present the main task is to increase resource amount of S. chinensis. We found that it wealthily contains many kinds of nutrition and medicinal components. Pharmacological function of S. chinensis is mainly on liver, senescence, nervous system, cardiovascular system, and kidney. Now it has become a kind of important material in pharmaceutical, food and drink industries. Now it has been often utilized as primary juice of S. chinensis, fruit juice as well as jelly. Protection of wild resources of S. chinensis, construction of artificial cultivate base, improvement of production enterprise will promote inevitably fast increasing of S. chinensis, it also will promote the development of industry and increment of social economy at local level. Related Articles | Metrics Select AN INFORMATION SYSTEM OF JIANGSU PLANT RESOURCE TIAN Xing-jun, ZHANG Hui-ren, ZHANG Li-xin Bulletin of Botanical Research    2002, 22 (1): 125-128.   Abstract （604）      PDF（pc） （235KB）（355）       Knowledge map    Save An information system of Jiangsu plants was developed using Visual Basic(6.0) under Windows ME. All data were first inputted with Ms Excel 2000, then outputted to Ms Access 97. The data recorded all 2205 species, 334 varieties, 21 cultivated varieties and 1534 synonymies in Jiangsu province, China. The system used ODBC(Open Database Connectivity) and Jet(Joint Engine Technology) to connect the Ms Access data, SQL(Structure Query Language) to search the database. Chinese name, Latin name, family name, genus name of all plants in Jiangsu could be searched using this system. And the characteristics, pictures, geographical distribution, habit, economic importance of the plants could be shown in this system. The system runs under the environment of Windows 95, Windows 98 and Windows ME. Related Articles | Metrics Select A NEW SPECIES OF THE GENUS MICHELIA L.(MAGNOLIACEAE) FROM CHINA ZHOU Shou-biao, ZHANG Ding-cheng Bulletin of Botanical Research    2002, 22 (2): 129-130.   Abstract （549）      PDF（pc） （160KB）（267）       Knowledge map    Save A new species of the genus Michelia L. from china is given. Related Articles | Metrics Select A NEW RECORD OF GENUS ANASTROPHYLLUM(HEPATICAE) FROMCHINA SUN Jun, GAO Qian, CAO Tong Bulletin of Botanical Research    2002, 22 (2): 131-132.   Abstract （468）      PDF（pc） （156KB）（236）       Knowledge map    Save A new record species Anastrophyllum piligerum(Nees) Steph. from China is reported, and the taxonomic situation of the genus Anastrophyllum is also discussed. Related Articles | Metrics Select NEW RECORDS FOR HUNAN PROVINCE PTERIDOPHYTES FLORAS LI Xin-guo, WU Shi-fu, SONG Guo-yuan Bulletin of Botanical Research    2002, 22 (2): 133-135.   Abstract （611）      PDF（pc） （136KB）（812）       Knowledge map    Save 13 species of pteridophytes belonging to 3 families and 4 genera from Hunan province are firstly reported. Related Articles | Metrics Select SOME NEWLY RECORDED PLANTS FROM HUNAN PROVINCE OF CHINA(Ⅳ) HU Guang-wan, LEI Li-gong, LIU Ke-ming Bulletin of Botanical Research    2002, 22 (2): 136-138.   Abstract （501）      PDF（pc） （151KB）（493）       Knowledge map    Save Here, some taxa, including 1 family, Petrosaviaceae, 2 genera, Petrosavia Becc. and Oberonia Lindl., 11 species, Corydalis caudata(Lam.) Pers, Chrysosplenium wuwenchenii Jien, Sapium chihsinianum S. K. Lee, Paraboea sinensis(Oliv.) Burtt, Hemarthria compressa(Linn. f.) R. Br., Sparganium fallax Graebn, Petrosavia sakurai(Makino) J. J. Smith ex Steenis, Paris verticillata M.-Bieb., Curculigo capitulata(Lour.) O. Kuntze, Oberonia caulescens Lindl., Calanthe tsoongiana T. Tang et F. T. Wang and 1 variety, Chrysosplenium hydrocotylifolium Lévl. et Vant. var. emeiense J. T. Pan, are reported as new records in the Hunan Province. Related Articles | Metrics Select EXOTIC LEGUME SPECIES IN CHINA ZHU Xiang-yun, DU Yu-fen Bulletin of Botanical Research    2002, 22 (2): 139-150.   Abstract （2653）      PDF（pc） （441KB）（3707）       Knowledge map    Save Exotic species have an important play on native species somewhere. Recently some researchers pay more attention to their adaptation and living mechanism. Under this kind of situation, the present authors reconfirmed some exotic legume species, and firstly reported that 158 legume species(including subspecies and varieties) of 73 genera occur in China. Related Articles | Metrics Select STUDY ON CLASSIFICATION,DISTRIBUTION AND SUCCESSION OF PINUS MASSONIANA FOREST IN GUANGXI WANG Xian-pu, JIANG Gao-ming Bulletin of Botanical Research    2002, 22 (2): 151-155.   Abstract （405）      PDF（pc） （230KB）（353）       Knowledge map    Save Pinus massoniana forest is a seral stage of evergreen broadleaf forest sere. There is expansive distribution in different geographical regions of Guangxi, mainly occurring in red and yellow soil hill and mountain below elevation of 1300m. 3 Association classes and 76 Associations have been identified. Their successional trend and situated stage toward recovering evergreen broadleaf forest can be fully proved through information analysis of community physiognomy, structure and species composition change between 76 Associations, and offering scientific base for their rational management. Related Articles | Metrics Select STUDIES ON FLORA OF SEED PLANTS IN YI MOUNTAINS OF SHAN DONG PROVINCE WANG Xi-hua, LI Jing-dong Bulletin of Botanical Research    2002, 22 (2): 156-162.   Abstract （474）      PDF（pc） （311KB）（366）       Knowledge map    Save Yi mountains lying in the eastern of middle shandong hill district has now 886 species of seed plant belonging to 122 families and 463 genuses auording to the many years incestigation. The research into 727 species of wild seed plant belonging to 108 families and 411 genuses in flora indicates that the area has typical characteristios of deciduous broadleaved forest in the warm temperate zone, complex geographica compenent, a great variety of flora types, very obvious preponderant phenomena and remarkable character of temperate zone. lompare with neighboring seed plant flora shows:yi mountain and tai mountain have upper homopeneity, itnand lao mountain, yuntai mountain as well as qian mountain is degressive in turn, and it is very different from ruya mountain and daqing mountain. Related Articles | Metrics Select THE ECO-GEOGRABPHIC DISTRIBUTION OF( ACTINIDIA KOLOMIKTA(MAXIM. & RUPR.) MAXIM.) AND ITS PHYTOGEOGRAPHIC SIGNIFICANCES DENG De-shan Bulletin of Botanical Research    2002, 22 (2): 163-167.   Abstract （728）      PDF（pc） （235KB）（374）       Knowledge map    Save The polymorphic species Actinidia kolomikta(Maxim. Rupr.) Maxim., which with two discontinuous areas, is inherently sensitive to local changes in habitat and it strictly grows in Mixed Coniferous and Broadleaved Forest environments either in low altitudes of North-east Asia or in high altitudes of South-west China. According to its eco-geographical distribution and its affnities, it was pointed out that this species might be considered to have originated in high altitudes of Southwest China. The formation of its typical North-eastern Asia and South-west China discontinuous distribution pattern has been made by the driving force of the episodically environmental changes in Quaternary. And, in this paper the author has disscused the phytogeographic significances of its present distributional pattern. Related Articles | Metrics Select VARIATION PATTERNS ON MICRO-MORPHOLOGICAL CHARACTERISTICS OF LEMMAS OF AGROPYRON MONGOLICUM XIE Xin-ming, YUN Jin-feng, GAO Yan-chun, LU Xiao-liang, LI Bing-tao Bulletin of Botanical Research    2002, 22 (2): 168-172.   Abstract （476）      PDF（pc） （422KB）（292）       Knowledge map    Save Micro-morphological characteristics of lemmas of Agropyron mongolicum Keng from 6 natural populations and 2 cultivars were investigated using scanning electron microscopy. The results showed that there were 14 kinds of variations on micro-morphological characteristics of lemma surfaces, indicating an abundant polymorphism. As far as the distribution pattern of the variations was concerned, the variations mainly existed within populations, and the differentiation among populations was not obvious. It was proved that the variation within populations was greater than that among populations. Related Articles | Metrics Select STUDY ON THE ORGANIC DEVELOPMENT SEQUENCE OF ALISMA ORIENTALE JUS. IN EARLY STAGE OF ONTOGENY LIU Mei, WANG Chen, LIU Ming-yuan Bulletin of Botanical Research    2002, 22 (2): 173-175.   Abstract （405）      PDF（pc） （239KB）（244）       Knowledge map    Save The Organic development sequence of Alisma orientale in early stage of ontogeny was studied. Two stages were divided:proembryo-mature seed embryo stage is characterized by the development of shoot apex being earlier than root apex, and plumular nodal root primodium, and being faster than radicle primodium; seed germination-seeding formation stage is characterized by the radicle growth being faster than plumular nodal root. And it was pointed out that the aquatic plants Euryale ferox and0 Nymphaea caerulea are of same characters as the former and the land plant Gentiana manshurica is of same characters as the latter. Related Articles | Metrics Select ULTRASTRUCTURE OF THE SECRETION OF PELTATE GLANDULAR HAIRS IN OCIMUM BASILICUM L. ZHENG Bao-jiang, YU Li-jie, XING Shu-qing, WANG Feng-chun Bulletin of Botanical Research    2002, 22 (2): 176-178.   Abstract （438）      PDF（pc） （338KB）（383）       Knowledge map    Save It was proved by electron microscopic observation that head cells of peltate glandular hairs contained a large number and volume of plastids. In which mass osmiophilic materials accumulated; During secretory period, the cytoplasm was detached from the cell wall; Osmiophilic materials secreted in two ways:one is exocytosis seretion, and another is ecrine secretion. Related Articles | Metrics Select STOMATAL AND NON-STOMATAL LIMITATION OF THE FLUE-CURED TOBACCO UNDER WATER STRESS AT VIGOROUS GROWING STAGE SUN Guo-rong, YAN Xiu-feng, LIU Bo, LI Chun-sheng, SHAO Zhan-wen Bulletin of Botanical Research    2002, 22 (2): 179-183.   Abstract （606）      PDF（pc） （232KB）（469）       Knowledge map    Save The flue-cured tobacco of NC89、LJ851、LJ911 grow rapidly, consume water a lot in the vigorous growing stage. The level of relative soil water content had better be kept at 75%~85%. The fall of photosynthesis rate at noon is brought by stomatal limitation. When relative soil water is below 75%, the cause of photosynthesis rate drop is non-stomatal limitation. The non-stomatal limitation play dominant role in decline of photosynthesis while relative soil water content is below 65% which could do harm to photosynthesis organ. Related Articles | Metrics Select STUDIES ON CHARACTERISTICS OF LEAVES GROWTH AND PHOTOSYNTHESIS PHYSIOECOLOGY OF SARGENTODOXA CUNEATA JIN Ze-xin, KE Shi-sheng, ZHONG Zhang-cheng Bulletin of Botanical Research    2002, 22 (2): 184-189.   Abstract （370）      PDF（pc） （267KB）（325）       Knowledge map    Save Studys on characteristics of leaves growth and photosynthesis physio ecology of Sargentodoxa cuneata showed that there were same increasing tendency among leaves length、area and dry weight of Sargentodoxa cuneata. They increased rapidly in early growth phase, but increased slowly after then. Leaves length and leaves area was maximum in the middle of July. Leaves dry weight was maximum at the beginning of August. The increasing of chlorophyll content and nitrate reducase activity with leaves growth lasted to August, reversed after then. The light compensation point in spring and summer was lower than in autumn, but the light saturation point was opposite. The diurnal variation of Pn was "single-peak" curve in spring, which was "twin-peak" curve showing obvious "noon-rest" in summer and autumn. The increasing of daily average of Pn in whole growing seasons lasted to the beginning of August, reversed after then. In summer, daily average Pn of Sargentodoxa cuneata was lower than evergreen broad-leaf species, which was higher than deciduous broad-leaf species. Related Articles | Metrics Select ENDOGENOUS HORMONES LEVELS IN CUTTINGS OF LARIX OLGENSIS AND THEIR RELATIONS TO ROOTING AO Hong, WANG Kun, FENG Yu-long Bulletin of Botanical Research    2002, 22 (2): 190-195.   Abstract （369）      PDF（pc） （247KB）（368）       Knowledge map    Save The experiment results of the cuttage propagation of larix olgensis have shown that shoot cuttings root better than hardwood cuttings, and seed-tree age is an important factor which affect the rooting. Seed-tree of two, the rate of rooting got more than 95%. On the basis of these experiments, the paper determined the contents of endogenous plant hormones levels in hardwood and shoot cuttings. It is shown that the contents of IAA、CTKs in shoot cuttings are higher than that in hardwood cuttings, and reduce with raising the age of seed-tree; on the other hand, the content of ABA in shoot cuttings is lower than that in hardwood cuttings, and increase with raising the age of seed-tree. The results demonstrate that the contents of IAA、ABA are closely related to rooting of Larix olgensis, IAA promotes rooting and ABA inhibits rooting. The experiments point out that IAA:ABA ratio maybe taken for a standard to express the capability of rooting of larix olgensis. Related Articles | Metrics