Abstract: This paper deals with the taxonomy of the genus Ullmannia. The specimens of U. aff. bronnii or U. cf. bronnii previously recorded from South China may be regarded as U. bronnii, This paper also states the stratigraphical and geographical distributions of Ullmannia and diseusses the palaeoelimate and the palaeogeography of South China from the late early Permian to the end of Permian. Moreover, this paper states the general eh.araeter of U. bronnii from South China and describes the Cathaysiopteris crassinervis sp. nov.

Key words: South China, The late early Permian , Ullmannia, Cathaysiopteris Crassinervis