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25 June 2003, Volume 25 Issue 03
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  • Articles
    A New Species of Goniothalamus (Annonaceae) from China
    HOU Xue-Liang SHUI Yu-Min
    2003, 25(03):  1-3. 
    Abstract ( 2719 )   HTML ( )   PDF (169KB) ( 1359 )   Save
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    C.yunnanensi W.T.Wang affinis, sed foliis nervis lateralibus (10-)13-21-jugatis (nec-7-9-jugatis),pedicellis 9-13mm longis(nec circ. 4mm longis), sepalis 5 mm longis 4 mm latis (nec circ. 8 mm longis latisque), patalis exteroribus ovatis 2.5 cm longis 1.3 cm latis (nec 2 cm longis7 mm latis) facile differt.
    New Taxa of Impatiens from Yunnan
    HUANG Su-Hua SHUI Yu-Min CHEN Wen-Hong
    2003, 25(03):  1-3. 
    Abstract ( 3443 )   HTML ( )   PDF (1243KB) ( 1390 )   Save
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    Nineteen new species and one new variety of the genus Impatiens L. from Yunnan, China are described. They are Impatiens longirostris; I. salwinensis; I. deqinensis; I.yid; I. pianmamsis; I. ivenshanensis; I. laojunshanensis; I. malipoensis; I. bannaensis; I. ximaensis; /. sunhixingana; /. daguanensis; I. mananensis; I. suijiangensis; I. zixishanensis; I. diannanensis; /. claviger var. auriculata', I. erfuensis; I. banpoensis; I. dqfuensis.
    A New Species of Epimedium (Berberidaceae) from Guizhou, China
    HE Shun-Zhi XU Wen-Fen
    2003, 25(03):  1-3. 
    Abstract ( 2937 )   HTML ( )   PDF (139KB) ( 1525 )   Save
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    Species nova E.sagittato (Sieb. et Zucc.) Maxim. simils, sed paginis foliorum pilosis, floribus majoribus (circ. 2 cm diam.), sepalis exterioribus ad medium purpureo-roseis, petalis purepureo-roseis, saccatis, elimbatis, antheris viridulis oblongis 2-locularibus, loculis aegualibus parallelis ad maturitatem a basi ad apicem apertis, lobis persitentibus revolutis, facile differt.
    New Materials of Astragalus (Leguminosae) from Yunnan
    QIANZi-Gang YANG Yao-Wen
    2003, 25(03):  1-3. 
    Abstract ( 3248 )   HTML ( )   PDF (77KB) ( 1399 )   Save
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    A new variety Astragalus englennr^s Ulbr. var. gindongensis Z. G. Qian, var. nov. and new synonyms Astragalus saccatocarpus K. T. Fu, Astragalus naigruchus Y. H. Xu et Q. R. Liu As. tragalus voburus Y. H. Xu et Q. R. Liu are reported in this paper.
    Key Taxa of Larger Members in Higher Fungi of Biodiversity from China
    WANG Xiang-Hua YU Fu-Qiang, ZHENG Huan-Di CHEN Juan
    2003, 25(03):  1-3. 
    Abstract ( 3020 )   HTML ( )   PDF (383KB) ( 2504 )   Save
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    Among of the vast numbers of fungi, key taxa are of great importance for scientific research, economic development and ecosystem management. It is urgent and necessary to select and determinate key taxa from the species recorded from China. Based on many field investigations and analysis of literature about larger members in higher fungi from China, with reference to the selecting and determining principles and methods used for animals and plants, three types of key taxa were proposed: endangered taxa, impor-tant taxa for scientific research and important groups for economy.
    Protection and Sustainable Utilization of Traditional Tibetan Medicine "Snow Lotuses" (Saussurea) in Diqing Autonomous Prefecture, Yunnan
    YANG Qing-Song CHEN Shao-Tian ZHOU Zhe-Kun
    2003, 25(03):  1-3. 
    Abstract ( 2871 )   HTML ( )   PDF (173KB) ( 1651 )   Save
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    "Snow lotuses" are a common name of some plants from the genus Saussurea (Subg. Amphi-hena and Subg. Eruwonyne). These plants are one of the most famous alpine plants in Tibet areas and usually distribute in screes and stone meadows of elevation above 3 500 m. "Snow lotuses" have been used as famous traditional Tibetan medicine to treat different diseases for many years. Since Diqing Autonomous prefecture become a hot spot of tourism, "Snow lotuses" have become a tour commodity.
    Spore Morphology of Eight Species of Selaginellaceae from Yunnan
    LIU Jia-Xi SUN Xiao-Hong JIN Ying LU Lin YU Xiao-Xing ZHANG Xian-Chun
    2003, 25(03):  1-3. 
    Abstract ( 3025 )   HTML ( )   PDF (185KB) ( 1350 )   Save
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    The spores of eight species of Selaginellaceae, Selaginella amblyphylla Alston, S.bisulcata Spring, S.kurzii Baker, S. laxistrobilis K. H. Shing, S.omata (Hook. etGrev.) Spring, S.pseu-dopaleifera Hand .-Mazz., 5. repanda (Desv. ex Poir) Spring and 5. siamensis Hieron. from Yunnan of China were observed by means of LM and SEM.
    Classification of Spore Ornamentation in Filicales under SEM
    WANG Quan-Xi YU Jing
    2003, 25(03):  1-3. 
    Abstract ( 2864 )   HTML ( )   PDF (124KB) ( 1415 )   Save
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    In this paper, the superficial ornamentation of spores of order Filicales from China was classi-fied based on the observation under scanning electron microscope (SEM) . The morphological features of each type with micrographs were described.
    Karyotype of Sladenia and Its Systematic Insights
    LI Lu LIANG Han-Xing PENG Hua
    2003, 25(03):  1-3. 
    Abstract ( 2727 )   HTML ( )   PDF (208KB) ( 1397 )   Save
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    A karyomorphological study of the monotypic genus of Sladenia is studied and compared with those of the supposedly related families, such as Actinidiaceae, Theaceae sensu stricto, and Ternstroemi-aceae. It confirms that chromosome number of Sladenia is 2n = 48. Sladenm has 2A karyotpye with a kaiyotypic formula of 2n = 4x = 48 = 4M + 36m + 8sm. Its interphase nucleus is characteristic of densely diffuse type. The condensation behavior of chromosomes during mitotic prophase conforms to the interstitial type. Comparative kaiyotype reveals that Sladenia is different from the related families not only in the ba-sic number, but also in the size and morphology of metaphase chromosomes, the structure of interphase nuclei, condensation behavior of chromosomes during mitotic prophase, and presence or absence of the satellite and the nucleolar organizing region as well as. These dissimilarities indicate that Sladenia is far from Actinidiaceae, TTieaceae sensu stricto. Moreover, the karyomorpholgical study shows that SMenia is not close to Temstroemiaceae, which was achieved by the previously molecular data.
    Floral Anatomy of Megacodon and Veratrilla (Gentianaceae)
    XUE Chun-Ying LI De-Zhu
    2003, 25(03):  1-3. 
    Abstract ( 2873 )   HTML ( )   PDF (195KB) ( 1286 )   Save
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    The present paper reports the characters of floral anatomy of Megacod^n (H. Smith and Vera,-nUa Franch. The results are used to discuss the systematic relationships of Megacodon and Veratrilla The floral anatomy of Megacodon and female floral of VeratrilU. are peculiar in the (part or all) sepal trac-es ansmg conjomtly with the petal traces. In male floral of Veratrilla, the petals and sepals receive one trace each directly from the stele. These group share similar charade.: the stamens receive one trace each directly from the stele and each caipel receives 1 don,al bundle and 2 ventral bundles.
    The Infuential Factors of RAPD in Ilex kudingcha and the Optimization of the Experimental Conditions
    ZHANG Feng-Qin XU Li-Xin ZHOU Peng LIU Guo-Min GUO An-Ping QIU Qing-Tie
    2003, 25(03):  1-3. 
    Abstract ( 2537 )   HTML ( )   PDF (1948KB) ( 1524 )   Save
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    Ilex kudingcha was used as "Tea" for a long time in China. The influential factors of RAPD in Ilex kudingcha C. J. Tseng are studied and the experimental parameters are optimized.
    The Relationship between Floristic Character and Conservation ex situ of Endangered Plants
    GONG Xun ZHANG Qi-Tai PAN Yue-Zhi
    2003, 25(03):  1-3. 
    Abstract ( 2890 )   HTML ( )   PDF (171KB) ( 1691 )   Save
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    In the present paper, the adaptability of endangered plants introduced from various areas of China into Kunming Botanical Garden was summarized, and the relationship between floristic character and conservation ex situ is discussed. 1. Those species from central and southeast Yunnan have been found stronger adaptability. Most of them could grow, flower and fruit normally, because their native habitat is similar to that of Kunming.
    The Areal-types of the World Families of Seed Plants
    WUZheng-Yi ZHOU Zhe-Kun LI De-Zhu PENG Hua SUN Hang
    2003, 25(03):  1-3. 
    Abstract ( 4230 )   HTML ( )   PDF (395KB) ( 3668 )   Save
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    The areal-type means distribution map of certain plants always same or nearly same. This is an important method in floristic research to divide distribution into different areal-types. More than 3116 gen-era of seed plants have been recorded in China. They have been classified into 15 areal-types and 37 sub-types . The certain number represent certain areal type such as number 2 always means pantropic distribu-tion pattern. After repeated to tests and uses, it has been proved that characteristics and relationships of each areal type can be showen by such classification. A classification precept of families of seed plants of the world has been proposed at present paper.
    Taxoids from the Leaves and Stems of Taxus chinensis
    WANG Fu-Sheng PENG Li-Van ZHAO Yu GU Kun ZHAO Qin-Siu SUN Han-Dong
    2003, 25(03):  1-3. 
    Abstract ( 3078 )   HTML ( )   PDF (327KB) ( 1469 )   Save
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    A new C - 14 oxygenated taxoid, 14β-hydroxy-baccatin VI (1), together with seven known taxoids, baccatin VI (2), baccatin IV (3), lβ-dehydroxybaccatin IV (4) , taxayunnasin A (5), 2α-deacetyl-2α-benzoyl-13α-acetyltaxayuntin (6), 5α-hydroxy-2a, 7β, 9α, 10β, 13α-pentaacetoxy-4 (20), 11-taxadiene (7) and taxacin (8) were isolated from the ethanolic extract of leaves and stems of Taxus chinensis (Pilg) Rehd. The structures of the compounds were elucidated by spectroscopic tech-niques. The detailed 13C and 1H NMR data of the seven known compounds were measured in acetone- d6,and the NMR data of taxacin (8) were reported for the first time.
    Two New Triterpenoid Saponins from Psammosilene tunicoides
    ZHONG Hui-Min HUA Yan NI Wei ZHOU Jun CHEN Chang-Xiang
    2003, 25(03):  1-3. 
    Abstract ( 2731 )   HTML ( )   PDF (201KB) ( 1456 )   Save
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    Four oleanane-type triterpenoid saponins were isolated from the roots of Psammosilene tunicoides W. C. Wu et C. Y. Wu. Their structures were elucidated on the basis of spectral and chemical evi-dence as 3-O-β-Dgalactopyranosyl-(1→2)-β-D-6-O-methylglucuronopyranosyl quillaic acid(1),3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-glucuronopyranosyl quillaic acid(2),3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-6-O-methylglucuronopyranosylquillaic acid (3),3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-6-O-ethylglucuronopyranosyl quillaic acid(4)。
    Cyclodipeptides of Panax notoginseng and Lactams of Panax ginseng
    TAN Ning-Hua WANG Shuang-Ming YANG Ya-Bin HE Ming
    2003, 25(03):  1-3. 
    Abstract ( 2883 )   HTML ( )   PDF (127KB) ( 1723 )   Save
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    From the roots of Panax notoginseng fourteen cyclodipeptides 1-14 were isolated including one new compound (1),seven new natural compounds (4-10) and six known compounds (2-3,11-14) together with one known other compound 15.The chemical structure of 1 was elucidated as cyclo(LeuThr) based on spectral methods.From the roots of Panax ginseng five known lactams (16-20) including pyroglutamic acid were isolated together with butyric diacid,daucosterol and sucrose.The primary bioactivity test showed that pyroglutamic acid and its nbutyl derivative have weak Ca2+ antagonistic activity.