关键词: 福建永安, 竹类植物, 区系

Abstract: According to investigation,there exists a total of 63 species and varieties falling into 11 genera of Bambusoideae which are natural distribution in Yong'an City,Fujian Province.The genera and species of Bambusoideae respectively account for 28.2% and 11.4% of China,and 64.7% and 48.8% of Fujian Province.Among them,4 species of Sinobambusa rubroligula,Indocalamus hunanensis,Pseudosasa maculifera var.hirsuta and Phyllostachys heterocycla cv.Luteosulcata are the new records of bamboo distribution in Fujian.By the analysis of types,the major bamboo plants in Yong'an City are mainly monopodial-scattered and sympodial-mixed species.Yong'an is the distributive center of cluster bamboo and mixed bamboo which also have an obviously transitive characteristic from cluster bamboo to seattered bamboo.Floristic analysis indicated that there are 5 distributive types of Bambusoideae in Yong'an (contains a sub-type),and the East Asia holds the first position.

Key words: Yong'an, Fujian, Bambusoideae, flora