аЯрЁБс>ўџ +-ўџџџ*џџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџьЅС‰@ №Прjbjbq”q” %"іір џџџџџџlžžžžžžžЮЮЮЮЮ кЮЉvњњњњњњњњfhhhhhh, ?`”žњњњњњ”ФžžњњњФФФњИžњžњfФВРžžžžњfФЂФfžžfю є- ОЮЮВffЉЉfŸФŸfФУхH. Zhu & M.C. Roos Abstract H. Zhu1 & M. C. Roos (The National Herbarium of the Netherlands, Leiden University branch, P.O.Box 9514, 2300 RA Leiden, the Netherlands. 1Permanent address: Xishuangbanna Tropical Botanical Garden, the Chinese Academy of Sciences, Kunming 650223, P. R. China) 2004. The tropical flora of southern China and its affinity to Indo-Malesian flora.Telopea 10(2): 639–648. A comparative study of floristic composition of the vegetation in South China, i.e. southern Yunnan and Hainan Island, with those in Vietnam, Malay Peninsula and Brunei reveals that: (1) the flora of southern China consists mainly of tropical floristic elements which contribute about 60%, at the family level and more than 80 % at the generic level, of its total flora. The dominant geographical elements of the flora of southern China at the generic level are taxa with a distribution pattern in tropical Asia. This reveals that the flora of southern China is of tropical nature with a strong tropical Asian affinity; (2) most of the dominant families from the flora of southern China are also dominant in the Malesian flora except for the Urticaceae, Fagaceae, Theaceae, Rosaceae and Myrsinaceae. The floristic similarity between the flora of southern China and the flora of western Malesia is over 70% at the family level and more than 50% at the generic level, and between the floras of southern China and Vietnam is more than 84% at the family level and more than 69% at the generic level. This suggests that the tropical flora of southern China has a close affinity not only to the Vietnamese flora but also to the Malesian flora and supports the idea that the flora of southern China, together with the Indochina flora, belongs to Indo-Malesian floristic subkingdom of the Paleotropic kingdom suggested by Takhtadjan (1978) or the Malesian subkingdom of the Paleotropical kingdom as suggested by T.L.Wu et al. (1996); (3) situated at the northern margin of tropical Asia, on the other hand, it is also obvious that the flora of southern China comprises less strictly tropical elements whenc ompared to the Malesian flora, and consequently represents only a marginal type of Indo-Malesian flora; (4) the Vietnamese flora has a closer affinity to the tropical flora of China than to the Malesian flora and therefore is considered also to be a marginal type of Indo-Malesian flora; (5) the close affinity of the flora of southern China to the Indo-Malesian flora can be explained by the geological history of South-East Asia. 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