Original scientific paper

https://doi.org/10.2478/botcro-2013-0005

Three new species of Cymbella (Bacillariophyta) from high altitude lakes, China

Zhuju Hu ; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China; University of Chinese Academy of Science, Beijing 100049, People’s Republic of Chi
Yanling Li ; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China
Ditmar Metzeltin ; Am Stegskreuz 3b, D-65719 Hofheim, Germany

Abstract

This paper describes three new Cymbella species from high altitude lakes of Hengduan Mountains region, southwest China. Cymbella heihainensis Li et Gong nov.spec. is similar to C. modicepunctata Krammer, C. asiatica Metzeltin, Lange-Bertalot et Li, Y., but differs from them in valve size, stigmata, raphe ending and also striae number. Cymbella shudunensis Li et Metzeltin nov. spec. is related to C. terrafuegiana, but differs in wider valve size, larger central area and coarser puncta. C. shudunensis differs from C. proxima Reimer in Patrick et Reimer group in reverse lateral raphes at the proximal endings, and distinguished from C. cistula (Ehrenberg) O.Kirchner group in the absent central area on dorsal side. Cymbella xingyunnensis Li and Gong sp. nov. resembles the group around C. proxima, and the most similar taxon is C. sinensis Metzeltn et Krammer,which can be distinguished by its lack of stigmata.

Keywords

Cymbella heihainensis; Cymbella shudunensis; Cymbella xingyunnensis; diatoms; China

Hrčak ID:

109651

URI

https://hrcak.srce.hr/109651

Publication date:

10.10.2013.

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