中文摘要：

通过植物社会学的群落调查和统计分析方法,研究了广西特有种肥牛树群落的科属组成、植物地理区系分布、生活型谱、叶级谱、群落结构等群落特征.结果表明：在样地中共有维管束植物36科55属61种;肥牛树群落的种子植物属的地理区系分布类型有8种,以热带区域的分布类型为主,具有强烈的热带性特征;群落中的植物以高位芽的生活型为主,尤其是中高位芽生活型种类最多;群落中植物的叶的特征是以革质、单叶、中型叶为主;群落分层明显,可划分为乔木层、灌木层、草本层,肥牛树在整个群落的乔木层中占绝对优势.肥牛树群落的基本特征体现了该地区群落的气候和水热条件相适应的特点.

英文摘要：

Based on the plant sociology community surveys and statistical analysis methods, the species composition ,areal type, life form, leaves class spectrum and community structure were studied. The results showed that there were 36 familles,55 genera,61 species of vascular plants, The floral composition of the genera in the community could be divided into 8 areal types, and the tropical type was dominant. Phanerophytes were dominant among the life form, es- pecially the mesophanerophytes. The leaves were mainly leathery, simple and mesophyll. The layered phenomena was very obvious of C. sinensis community which can be divided into arborous, shrub and herbaceous layer. C. sinensis was dominant in the arborous layer. It reflected the temperature and moisture conditions at Limestone Mountains of these community characteristic in Southwestern of Guangxi.