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Three new species of Batrachospermum Roth (Batrachospermaceae, Rhodophyta) in China
Xie Shulian1; Shi Zhixin2
Source Publication中国海洋湖沼学报:英文版
AbstractThree new species of Batrachospermum Roth (Batrachospermales, Rhodophyta) from China are described in this paper. B. yunnanense sp. nov. has long-cylindrical trichogynes with long stalks and is diagnostic of section Virescentia. Within this section, B. yunnanense is similar to B. helminthosum Bory emend. Sheath et al., but it is dioecious and has curved carpogonial branches, while the latter is monoecious and has straight carpogonial branches. It is also similar to B. transtaganum Reis, but it differs from the latter in long carpogonia,big carposporophytes and carposporangia. It is considered that B. nothocladoideum sp. nov. is assigned to section Contorta, subsection Kushiroense, because its carpogonial branches are twisted and gonimoblast filaments are loosely agglomerated. This new species similar to B. iriomotense Kumano, but with short fascicles, long-ovoid or subpyriform cells, numerous terminal hairs, long-ellipsoid trichogynes, big carposporophytes and small carposporangia. The plant is quite tough and cartilaginous and similar to Nothocladus in gross morphology, but its carposporophytes are compact instead of diffuse. This shows that it may be a transitional species between section Contorta and genus Nothocladus. So, B. transitorium sp. nov. should belong to section Contorta, subsection Kushiroense, because of its curved or twisted carpogonial branches and loosely agglomerated gonimoblast filaments, with globose or subglobose cells in fascicles similar to B. spermatiophorum Vis et Sheath, but no colourless spermatiophores. In terms of small and numerous carposporophytes, B. transitorium sp. nov. is similar to some species of section Batrachospermum. However, their other features are unique, indicating its transitional nature between section Contorta and Batrachospermum.
Keyword淡水红藻 植物分类 中国 生活习性
Document Type期刊论文
Affiliation1.School of Life Science and Technology,Shanxi University
2.Institute of Hydrobiology,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xie Shulian,Shi Zhixin. Three new species of Batrachospermum Roth (Batrachospermaceae, Rhodophyta) in China[J]. 中国海洋湖沼学报:英文版,2005,023(002):204.
APA Xie Shulian,&Shi Zhixin.(2005).Three new species of Batrachospermum Roth (Batrachospermaceae, Rhodophyta) in China.中国海洋湖沼学报:英文版,023(002),204.
MLA Xie Shulian,et al."Three new species of Batrachospermum Roth (Batrachospermaceae, Rhodophyta) in China".中国海洋湖沼学报:英文版 023.002(2005):204.
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