基于4~5室的子房和果实,以及不同的嫩枝、叶、花被等特征,光叶球果杜英是一个明显区别于园果杜英的种。报道了黑腺杜英在广西的首次记录。
Having different characteristics of branchlets, leaves and perianth, Elaeocarpus hayatae is treated as a distinct species rather a variety of E. sphaericus. E. atro-punctatus is reported from Guangxi for the first time.