Abstract:Based on the study of Illigera B1. specimens from China, I. grandiflora W. W. Sm. et J. F. Jeff. var. microcarpa C. Y. Wu ex Y. R. Li and I. grandiflora W. W. Sm. et J. F. Jeff. var. pubescens Y. R. Li are regarded as two new synonyms of I. grandiflora W. W. Sin. et J. F. Jeff., while I. rhodantha Hance var. Dunniana (Levi.) Kubitzki is regarded as a nwe synonym of I. rhodantha Hance. I. brevistaminata Y. R. Li is a new record to Guangdong and Guangxi, and I. grandiflora W. W. Sm. et J. F. Jeff. is a new record to Sichuan.