一、前言广州地处南亚热带区域,对引种驯化国内外热带和亚热带树种极其有利。经过了多代人的努力,广州已引种成功了一大批包括许多可供园林应用的外来树种。因此,通过调查去搞清楚广州市外来园林树种引种的历史和现状极有必要,这样做可给以后引种工作提供参考依据和帮助,从而可避免由于盲 I. Introduction Guangzhou is located in the southern subtropical region, which is extremely beneficial to the introduction and domestication of tropical and subtropical species at home and abroad. After several generations of efforts, Guangzhou has introduced a large number of exotic species, including many that can be used in gardens. Therefore, it is extremely necessary to find out the history and present situation of introduction of exotic garden tree species in Guangzhou through the investigation, so as to provide reference and help for the introduction work in the future so as to avoid blindness due to blindness