Two new Stephanodiscaceae species (Bacillariophyta) from SW China

Pan YU; Fen LUO; Qingmin YOU; John Patrick KOCIOLEK; Wanting PANG; Yue CAO; Quanxi WANG

doi:10.1007/s00343-024-3215-9

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Two new Stephanodiscaceae species (Bacillariophyta) from SW China

Biology | Updated：2024-12-24

- Two new Stephanodiscaceae species (Bacillariophyta) from SW China
- Journal of Oceanology and Limnology Vol. 42, Issue 6, Pages: 2024-2033(2024)
- Affiliations：
  
  1.School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai200235, China
  2.College of Life Sciences, Shanghai Normal University, Shanghai200234, China
  3.College of Chemistry Biology and Environment, Yuxi Normal University, Yuxi653100, China
  4.Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, UCB 218, Boulder CO80309, USA
- Author bio：
  
  wangqx@shnu.edu.cn
- Funds：
- DOI：10.1007/s00343-024-3215-9
  CLC：
- Received：18 October 2023，
  
  Published：01 November 2024
- Accepted：
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YU Pan,LUO Fen,YOU Qingmin,et al.Research Paper Two new Stephanodiscaceae species (Bacillariophyta) from SW China[J].Journal of Oceanology and Limnology,2024,42(06):2024-2033.
DOI：

YU Pan,LUO Fen,YOU Qingmin,et al.Research Paper Two new Stephanodiscaceae species (Bacillariophyta) from SW China[J].Journal of Oceanology and Limnology,2024,42(06):2024-2033. DOI： 10.1007/s00343-024-3215-9.

摘要

Abstract

Two new freshwater centric diatom species were described from the southwest of China based on light and scanning electron microscopy.

Pliocaenicus

weixiense

sp. nov. has a transversely undulate valve face

marginal fultoportulae situated at the end of the hyaline strips

central fultoportulae forming a ring positioned in a circular pattern

each with 3–4 (usually 3) satellite pores

and a single rimoportula located at the base of the inner distal end of the costa.

Tertiarius

aspera

sp. nov. has an uneven valve face with small granules that may be present on the marginal area and valve mantle

marginal fultoportulae situated on each costa close to the margin of the valve

6–7 central fultoportulae forming a ring near the valve center each with two satellite pores

and one rimoportula located on the valve face/mantle junction in the middle of costa on the internal valve.

aspera

sp. nov. is the first reported extant species in the genus. This study played an important role in studying the taxonomic status and ecological information of the genus

and the establishment of the two new taxa will help demonstrate the unique nature of freshwater diatom flora in the sou

thwest of China.

关键词

Keywords

references

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