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Valid Publication of Croton dinghuensis (Euphorbiaceae) and Helicia yangchunensis (Proteaceae), Two Species Endemic to Guangdong, China

Abstract.  Two names proposed by H. S. Kiu, Croton dinghuensis (Euphorbiaceae) and Helicia yangchunensis (Proteaceae), were originally described from Guangdong, China, but were invalidly published because the author failed to specify the repository herbarium of the types. These names are validated by designating G. L. Shi 2763 (IBSC) as the holotype of C. dinghuensis H. S. Kiu and Zhanjiang Expedition 03261 (IBSC) as the holotype of H. yangchunensis H. S. Kiu.