Cleve-Euler, A. (Cleve) (1955). Die Diatomeen von Schweden und Finnland. Part IV. Biraphideae 2. Kongliga Svenska Vetenskaps-Akademiens Handligar, ser. 4,, 5(4): 1-232, figs 971-1306. page(s): p. 25; fig. 1022 c [details]
original descriptionCleve-Euler, A. (Cleve) (1955). Die Diatomeen von Schweden und Finnland. Part IV. Biraphideae 2. Kongliga Svenska Vetenskaps-Akademiens Handligar, ser. 4,, 5(4): 1-232, figs 971-1306. page(s): p. 25; fig. 1022 c [details]
original description(ofPinnularia acrosphaeria var. undulata Cleve, 1895)Cleve, P.T. (1895). Synopsis of the Naviculoid Diatoms, Part II. <em>Kongliga Svenska-Vetenskaps Akademiens Handlingar.</em> 27(3): 1-219, 4 pls. page(s): p. 86 [details]
new combination referenceHustedt, F. (1930). Bacillariophyta (Diatomeae). In: A. Pascher (ed.), Die Süsswasser-Flora Mitteleuropas. Gustav Fischer, Jena. Zweite Auflage. Heft 10, 466 pp., 875 figs page(s): p. 330 [details]