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    15 September 1984, Volume 4 Issue 3
    NEW FERNS FROM JINFOSHAN,NANCHUAN,SICHUAN(Ⅱ)
    Ching Ren-chang, Liu Zheng-yu
    1984, 4(3):  1-32. 
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    MATERIA AD FLORA MELASTOMATACEAE SINENSIUM
    Chen Cheih
    1984, 4(3):  33-68. 
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    POLLEN MORPHOLOGY OF TRIGONOTIDEAE
    Xi Yi-zhen
    1984, 4(3):  69-81. 
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    The present paper deals with studies of the pollen morphology of the tribe Trigonotideae (Boragidaceac-Boraginoi-deae), containing five genera, i. e. Trigonotis, Brachybotrys, Sinojohnstonia, Omphalotrigonotis and Mertensia. The pollen grains of 26 species belonging to these genera respectively were examined with the light microscope and scanning electron microscope. The pollen morphology of the genera in question is distinctly different between each other and may furnish valuable characters for distinguishing them and for supporting the establishment of the new genus, Omphalotrigonotis, An analytical key to the pollen grains of the five genere is as follows:1. Pollen grains dumbbellform in equatorial view, more or less constricted in equatorial region, tricolporate and tripseudocolpate. 2. Pollen grains the smallest in the tribe Trigonotideae. exine almost psilate…………………………Trigonotis Stey. 2. Pollen grains larger, exine with ornamentations. 3. Exine foveolate…………………………Sinojohnstonia Hu 3. Exine fillely granulate or spinulate. 4. Exine finely granulate…………………………Mertensia Roth. 4. Exine spinulate…………………………Blachybotrys Maxim. ex Oliv. 1. Pollen grains rhombic in equatorial view and not constricuted in equatorial region, tricolporate, not pseudocolpate. exine finely reticulate…………………………Omphalotrigonotis W. T. Wang.
    PLANTAE NOVAE HEPATICARUM SINARUM
    Chang Kuang-chu, Gao Chien
    1984, 4(3):  83-99. 
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    NEW TAXA OF CORNACEAE FROM CHINA
    Hu Wen-kuang
    1984, 4(3):  101-112. 
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    TWO NEW SPECIES OF ELATOSTEMA(URTICACEAE)FROM SICHUAN
    Wang Wen-tsai
    1984, 4(3):  113-117. 
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    A PRELIMINARY ANALYSIS ON THE GEOGRAPHICAL DISTRIBUTION ADN BRYOFLORAL ELEMENTS OF THUIDIACEAE FROM XIZANG(TIBET)
    Zeng Shu-ying
    1984, 4(3):  119-127. 
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    All species of family Thuidiaceae from Xizang (Tibet) areexamined and 11 genera with 28 species are reported. In accordance with a further analysis of vegetation, geo-graphical and vertical distribution of Thuidiaceae from Xizang, it may be tentatively divided into following three regions, 1. The region of southern slopes of the Himalayas. Whereunder flourish about 10 genera and 25 species as dominant elements. 2. The region of eastern Xizang. There are 7 genera and 12species. 3. The region of southern Xizang. Where there are 5 genera and 6 species. The different vertical distribution spectra of Thuidiaceae from Xizang, the author has recognized 4 distinct altitudinal zones as follows:1. The evergreen broad-leaved and deciduous broad-leaved forest zone (800-3000m. alt.). There are 23 species. 2. Subalpine coniferous forest zone (3000-3500m.). There are 17 species. 3. Alpine shrub-meadow zone (3500-4900m.). There are 12 species. 4. Till desert zone. Only 1 species distributed in this zone. The bryoflora of Thuidiaceae in Xizang consists of the following geographical elements:(1) Holarctic elements:8 species, approximating to 28.6% of the total number of Thuidiaceae in Xizang. (2) East Asiatic elements (including Sino-Japanese, Sino-Himalayas elements.); These species total up to 13 species, being 46.4% of all the Thuidiaceae in Xizang. (3)Old world tropic elements:2 species, approximating to 7.1%of all the Thuidiaceae in Xizang. (4). Endemic elements:2 species, approximating to 7.1% of all the Thuidiaceae in Xizang. (5) cosmopolitan elementas:3 species, approximating to 10.7%of all the Thuidiaceae in Xizang.
    TAXA ET COMBINATIONES NOVA TRIPTEROSPERMI ET CRAWFURDIAE E FLORA SINICA
    Wu Ching-ju
    1984, 4(3):  129-139. 
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    A STUDY ON THE RAW PLANTS FOR THE CHINESE TRADITIONAL MEDICINE “HUOSHAN SHI-HU”
    Tang Zhen-zi, Cheng Shi-jun
    1984, 4(3):  141-146. 
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    STUDIES ON THE POLLEN MORPHOLOGY OF NYMPHAEACEAE OF CHINA
    Zhang Yu-long
    1984, 4(3):  147-161. 
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    There are five genera of Nymphaeaceae in China:Nelumbo, Brasenia, Euryole, Nymphaea and Nuphar. Pollen morphology of 2 varieties, 11 species representing 5 genera was examined under light microscope and scanning electron microscope. The structure of exine of Nymphaea alba and Nelumbo nucifera was also examined under transmision electron microscope. According to the type of aperture, it may be divided into three types:(1) Anasulcate type, Brasenia, Euryale and Nuphar. Pollen grains long ellipsoidal and ellipsoidal in polar view, and boat-shaped in equatorial view. Ornamentation of exine granulate in Byesenia, spinulate in Euryale and long spinate in Nuphar. (2) Zonasulculate type:Nymphaea. It may be subdivided into anazonasculate and zonizonasculate type. Pollen grains circular in polar view, and circular or subcircular in equatorial view. Ornamentation of exine tuberculate, granulate or spinulate. (3) Tricolpate type:Nelumbo. Pollen grains subcircular in polar view, and subcircular or ellipsoidal in equatorial view. Ornamentation of exine rough granulate under light microscope, but rugulate under scanning electron micro-scope. The structure of exine Nymphea alba and Nelumbo nucifera were examined under transmision electron microscope. The former has a granular structure with more or less homogeneous granules, but the latter a collumellar structure. According to the idea about the evolution of pollen grains in primitive Angiosperms proposed by Walker, the type of granular structure is a primitive type, and that of collumellar structure a advenced one. A number of taxonomists have considered that Nymphaeaceae is a primitive and heterogeneous family. On the basis of the pollen morphology of this family, it may be supported for this view-point. The evolutionary relationships among the pollen grains in this family was also discussed.
    STUDIES ON THE GENUS NOMOCHARIS(LILIACEAE)
    Liang Song-yun
    1984, 4(3):  163-178. 
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    The genus Nomocharis is closely related to Lilium and Fritillaria, and there has been a difference of opinion about how todraw a demarcation line between them, especially between Nomocharis and Lilium. For example, Fritillaria lophophora Bur. et Franch. and Lilium henrici Franch. were once included in Nomocharis by some authors, but this was not accepted by Sealy and others. In the present paper, we follow Sealy's opinion that Nomocharis is characterized by tepals spreading and dissimilar, the inner tepals dark coloured at the base and there with fleshy flabellate crest on either side of a short median channel, the outer ones flat at the base, not channelled nor saccate, the filaments usually inflate into fleshy cylindrical or turbinate body at the lower part, or abruptly contract to a awn-like part at the top. The genus comprises eight species, belonging to two sections:Sect. I. Ecristata Balf. f. 1. N. aperta (Franch.) Wilson 2. N. saluenensis Balf. f. 3. N. forrestii Balf. f. 4. N. synaptica Sealy 5. N. biluoensis Liang, sp. nov. Sect. Ⅱ. Nomocharis 6. N. basilissa Farrer et Evans 7. N. pardanthina Franch. 8. N. meleagrina Franch. Nomocharis is largely distributed in Sino-Himalaya region. extenging from Leibo of Sichuan in the northeast, through Huize and Tali of Yunnan and Chayu of Xizang, south toAssam of India. It is of geographic importance that the section Ecristata Balf. f. of Nomocharis and its allied species of Lilium occur near the edges of the region where Lilium is abundant. In section Ecristata leaves are scattered, filaments slender and compressed, and margins of inner tepals not yet differentiating into fimbriate, which are very similar to those of Lilium nanum Klotz. et Garcke, L. sculiei (Franch.) Sealy and L. henrici Franch. They seem to be the intermediate forms between No-mocharis and Lilium. The distribution pattern of these taxa indicates that the genus Nomocharis may have been in the course of the uplift of Qinghai-Xizang plateau newly differentiated from Lilium, and the place of its origin was in the southern part of the Heng-duan Mauntains, as suggested by Wu Cheng-yih (1979).
    REASONS FOR KEEPING SPECIES OF DIFFUSEPOROUS WOOD TREES IN CHANGBAI MOUNTAIN AND THE DISTRIBUTION REGULARITY
    Gu An-gen, Huang Yue-ya, Gu Yi
    1984, 4(3):  179-190. 
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    THE LATIN DESCRIPTIONS SUPPLEMEMTED TO SIX GRASSES OF W.CHINA
    Keng Pai-chieh
    1984, 4(3):  191-198. 
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