摘要
根据我们对刘家场磺矿梯子口组孢子囊及其联生的营养枝材料的研究结果,证实钩蕨属的孢子囊为 Sphenophyllostachys Seward 式。据此,笔者认为钩蕨属实为楔叶穗属(Sphenoph-yllostachys Seward)同物异名,原属型种 Hamatophyton verticillatum Gu et Zhi 应改为Sphenophyllostachys verticillatus(Gu et Zhi)comb.nov.。代表华南晚泥盆世晚期的植物组合应改称 Sphenophyllostachys verticillaus Lepidodendropsis hirmeri 组合。本文还描述了楔叶穗属2个新种、2个未定种和1个新组合。
This paper mainly focuses on the investigation of the rich sporangia and unite growing vegetative branch material in Tizikou Formation,Liujiachang sulphanilamide mine and con- firms that sporangia of Hamatophyton is Sphenophyllostachys Seward,1898.In view of the above,it is considered that Hamatophyton is in fact Sphenophyllostachys Seward,Hamatophy- ton 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-Leptdodendropsis hirmeri combination.This paper descri- bes also two new species of Sphenophyllostachys Seward.
关键词
钩蕨属
孢子囊穗
楔叶穗
Hamatophyton
Sporangia
Sphenophyllostachys huangkuangensis
Sphenophyllostachys oblongifolius
