GENKAL, S.I., & M.V. CHEREPANOVA 2009 A new variety of Stephanodiscus niagarae (Bacillariophyta) from lake diatomite of the Kunashir Island (Kuril Islands) Nov. Sist. Nizsh. Rast. [Bot. Inst. Akad. Nauk SSSR] 43: 23-34, 2 pls., 2 tables Cardnote: Stephanodiscus niagarae var. puzanovianus |