The Three New Species Of Grateloupia In China (Halymeniaceae, Rhodophyta)

The marine red algal genus Grateloupia, belongs to Halymeniaceae.It contains more than 80 species, in Halymeniaceae (Halymeniales, Rhodophyta) is the most species-rich genus and distributed very widely no matter in temperate or tropical waters throughout the world, that 32 species distributed in China. For environmental changes and different stages of the physical, Grateloupia has been considered problematic, because in gross morphology the species is diverse. The morphological classification criteria have not been able to achieve unity, sometimes the two individuals of the same species have been identified as different types or two different types have been identified artificially as one species. Because of this, Grateloupia is regarded as one of the most difficult subjects classified by algal taxonomists in the world.As molecular biology technology rapid development and application,especially using rbcL gene to explore the Halymeniaceae system developmently , combining this way and morphological analysis.For Halymeniaceae of molecular systematics study lays a foundation, expend new ideas. By this way, research genetic relationship, genetic diversity systematically which were collected from Hainan, Qingdao, Dalian; At the same time , made a comprehensive research to the morphological structure of algae, especially the reproductive organs characteristics, types and so on. The main results are as follows:Through experiment I discovered three new species among the algas ,Grateloupia dalianensis Wang et Shi sp.nov., Grateloupia huanghaiensis Wang sp.nov. Grateloupia yinggehaiensis Wang et Luan sp.nov. In this paper, mainly description for their morphological structure, the development of cystocarps and their rbcL sequences.