Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China

Xie Shulian; Shi Zhixin

doi:10.1007/BF02894240

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Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China

OriginalPaper | Updated：2023-05-16

- Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China
- Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China
- 海洋湖沼学报（英文） 2005年23卷第2期页码：204-209
- Affiliations：
  
  1. School of Life Science and Technology Shanxi University
  2. Institute of Hydrobiology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Project No. 30270119 and 3989400 supported by the National Nature Science Foundation of China.
- DOI：10.1007/BF02894240
  中图分类号：
- 纸质出版：2005
- Accepted：
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Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China[J]. 海洋湖沼学报（英文）, 2005,23(2):204-209.

Shulian, X., Zhixin, S. Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China., Chin. J. Ocean. Limnol. 23, 204–209 (2005). https://doi.org/10.1007/BF02894240
Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China[J]. 海洋湖沼学报（英文）, 2005,23(2):204-209. DOI： 10.1007/BF02894240.

Shulian, X., Zhixin, S. Three new species ofBatrachospermum Roth (Batrachospermaceae, Rhodophyta) in China., Chin. J. Ocean. Limnol. 23, 204–209 (2005). https://doi.org/10.1007/BF02894240 DOI：

摘要

Abstract

Three new species ofBatrachospermum 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 sectionVirescentia. Within this section

B. yunnanense is similar toB. helminthosum Bory emend. Sheathet al.

but it is dioecious and has curved carpogonial branches

while the latter is monoecious and has straight carpogonial branches. It is also similar toB. transtaganum Reis

but it differs from the latter in long carpogonia

big carposporophytes and carposporangia. It is considered thatB. nothocladoideum sp. nov. is assigned to sectionContorta

subsectionKushiroense

because its carpogonial branches are twisted and gonimoblast filaments are loosely agglomerated. This new species similar toB. 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 toNothocladus in gross morphology

but its carposporophytes are compact instead of diffuse. This shows that it may be a transitional species between sectionContorta and genusNothocladus. So

B. transitorium sp. nov. should belong to sectionContorta

subsectionKushiroense

because of its curved or twisted carpogonial branches and loosely agglomerated gonimoblast filaments

with globose or subglobose cells in fascicles similar toB. 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 sectionBatrachospermum. However

their other features are unique

indicating its transitional nature between sectionContorta andBatrachospermum.

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Keywords

references

Jao, C. C., 1941. Studies on the freshwater algae of China. VIII. A preliminary account of the Chinese freswater Rhodophyceae.Sinensia 12: 245–290.

Hua, D. and Z. X. Shi, 1996. A new species ofBatrachospermum from Jiangsu, China.Acta Phytotax. Sinica 34: 324–326. (in Chinese with English abstract)

Kumano, S., 1982. Two taxa of the sectionContorta of the genusBatrachospermun (Rhodophyta, Nemalionales) from Iriomote Jima and Ishigaki Jima, subtropical Japan.Jap. J. Phycol. 30: 181–187.

Kumano, S., 2002. Freshwater red algae of the world. Bristol: Biopress Limited, 373 pp.

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Xie, S. L., Z. X. Shi, H. S. Lu et al., 2003. Four new reports ofBatrachospermum (Batrachospermales, Rhodophyta) from China.J. Wuhan Bot. Res. 21: 148–152. (in Chinese with English abstract)

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