original descriptionØstrup, E. (1910). Danske Diatoméer. <em>C.A. Reitzels Boghandel, Kjøbenhavn.</em> 323 pp., 5 pls. page(s): p. 190; pl. 5, fig. 117 [details]
basis of recordHällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). <em>Baltic Sea Environment Proceedings.</em> No. 95: 210 pp., available online athttp://helcom.fi/Lists/Publications/BSEP95.pdf[details] Available for editors [request]
additional sourceTuji, A. (2007). Type Examination of <em>Fragiaria gracilis</em> 0strup (Bacillariophyceae). <em>Bulletin of the National Museum of Nature and Science.</em> 33(1) : 9-12.[details] Available for editors [request]
additional sourceVan de Vijver, B.; Williams, D. M.; Kusber, W.-H.; Cantonati, M.; Hamilton, P. B.; Wetzel, C. E.; Ector, L. (2022). Fragilaria radians (Kützing) D.M.Williams et Round, the correct name for F. gracilis (Fragilariaceae, Bacillariophyta): a critical analysis of this species complex in Europe. <em>Fottea.</em> 22(2): 256-291., available online athttps://doi.org/10.5507/fot.2022.006 page(s): 265; note: Figs 88–112 [details] Available for editors [request]
source of synonymyHällfors, G. (2004). Checklist of Baltic Sea Phytoplankton Species (including some heterotrophic protistan groups). <em>Baltic Sea Environment Proceedings.</em> No. 95: 210 pp., available online athttp://helcom.fi/Lists/Publications/BSEP95.pdf[details] Available for editors [request]