Abstract: Eleven species names and two variety names are reduced to new synonyms. Three new combinations and one new state are made. Two species are reported new to China. One new varie- ty is established. The delimitation of some species that are easily confused are clarified, and geo-graphical significance of some species is discussed.

Key words: Lasianthus

摘要： 修订了东亚茜草科粗叶本属植物，新归并11个种名及2个变种名，建立1个新变种、3个新组合变种和1个新等级亚种，报道2个中国分布新记录种。讨论了一些易于混淆种的界限，以及探讨了一些种的植物地理意义。

关键词: 粗叶木属, 茜草科, 订正, 东亚