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Vigneshwaran, A.; Wetzel, C. E.; Williams, D. M.; Karthick, B. (2020). A re-description of Fragilaria fonticola Hustedt and its varieties, with three new combinations and one new species from India. Phytotaxa. 453(3): 179-198.

384666

10.11646/phytotaxa.453.3.2 [view]

Vigneshwaran, A.; Wetzel, C. E.; Williams, D. M.; Karthick, B.

2020

453(3): 179-198

Publication

Available for editors   [request]

Tabularia (Kützing) D.M. Williams & Round has received some attention since its separation from Synedra. The present study investigates Fragilaria fonticola Hustedt and its varieties based on the analysis of the type materials. The combinations were proposed as Tabularia fonticola (Hustedt) C.E. Wetzel & D.M. Williams comb. nov. (= Fragilaria fonticola Hustedt), Tabularia angusta (Hustedt) C.E. Wetzel & D.M. Williams comb. nov. et stat. nov. (= Fragilaria fonticola var. angusta Hustedt), Tabularia chandolensis (Gandhi) A. Vigneshwaran, D.M. Williams & B. Karthick comb. nov. (= Synedra chandolensis Gandhi) and the new species, Tabularia koynensis sp. nov. is also described from the Koyna River basin, Western Ghats, India. The detailed morphological features were analysed under light and scanning electron microscopy. Tabularia koynensis has linear valves outline with square to rounded ends. Striae short, radiate towards ends. This new species compared with T. sinensis, T. fasciculata, T. tabulata, T. kobayasii and Fragilaria longissima, which differ in size, valve shape, striae density and ultrastructure.

Greater Indonesia
Indian Subcontinent

Bacillariophyta

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