Fottea 2020, 20(2):121-127 | DOI: 10.5507/fot.2020.002

Three new Navicula (Bacillariophyta) species from an oligotrophic, deep lake, China

Yanling Li1*, Mengna Liao2, Ditmar Metzeltin3
1 Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, 650504, China. *Corresponding author e-mail: yanlingli@ynu.edu.cn, ylli@niglas.ac.cn
2 College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, P. R. China
3 Am Stegskreuz 3b, D-65719 Hofheim, Germany

Three new freshwater diatoms are described from China's Yunnan Plateau region in sediments from Lake Fuxian. Navicula australasiatica nov. sp., Navicula perangustissima nov. spec., and Navicula turriformis nov. spec. were identified from light and scanning electron micrographs. All new species are sufficiently different from other similar species based on valve outline, shape of the axial and center areas, and stria density. These three new species are all observed in surficial sediment from Lake Fuxian and compared to morphologically similar species from the genus Navicula.

Keywords: ancient lake, China, diatom, Lake Fuxian, new species, Navicula

Received: September 3, 2019; Accepted: April 6, 2020; Prepublished online: August 24, 2020; Published: October 14, 2020  Show citation

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Li, Y., Liao, M., & Metzeltin, D. (2020). Three new Navicula (Bacillariophyta) species from an oligotrophic, deep lake, China. Fottea, 20(2), 121-127. doi: 10.5507/fot.2020.002
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