Studies on the Genus Hamatophyton

This paper mainly focuses on the investigation of the rich sporangia and unite growing vegetative branch material in Tizikou Formation, Liujiachang sulphanilamide mine and confirms that sporangia of Hamatophyton is Sphenophyllostachys Seward, 1898. In view of the above, it is considered that Hamatophyton is in fact Sphenophyllostachys Seward, Hamatophyton Verticillatum Gu et Zhi which orinally decided before should be changed to S. verticillatus (Gu et Zhi) comb. nov. It represents the plant combination of South China as late Devenian. The flora is named as S. verticillatus-Lepidodendropsis hirmeri combination. This paper describes also two new species of Sphenophyllostachys Seward.