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Received:September 18, 2017Revised:November 15, 2017
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Study on the Spermatophyte Flora of the Changjiang Reservoir Watersource Forest Municipal Natural Reserve in Zhongshan City
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Abstract:
The recent investigation on flora of seed plants showed that it had a total species (including varieties) of 1 080 belonging to 179 families and 560 generas in Changjiang Reservoir Water-source Forest Natural Reserve of Zhongshan city. Among them, there were 988 species of seed plants belonging to 150 families and 560 geneus. The characteristic families of flora were Pentaphylacaceae, Ixonanthaceae, Alangiaceae, Daphniphyllaceae, Sarcospermaceae, Myrsinaceae, Staphyleaceae, Elaeocarpaceae, Rutaceae, Aquifoliaceae, Sabiaceae, Lauraceae, Symplocaceae, Taxodiaceae, Illiciumaceae, Hamamelidaceae, among which the most characteristic families were Lauraceae, Myrsinaceae, and Rutaceae. Phytogeographically, the pan-tropical families and generas were common (about 57.28% and 32.31%, respectively), meanwhile the other elements also appear in this area. The composition, which is complex, showed the nature of old origin in the flora of this region. Compared with spermatophyte flora at the similar latitude area of Tiantoushan Nature Reserve, Shenzhen city, the similarity coefficients of family and genus were 88.89% and 73.65%, respectively, which showed that there were little significant differences between them especially at the genus level.
Key words:  geological element; aerial type; floristic family; Changjiang Reservoir Water-source Forest Municipal Natural Reserve; Zhongshan city

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