RT Journal Article ID 115eb8257861d3ba A1 Genkal, S. I. A1 Yarushina, M. I. T1 Gomphosphenia stoermeri Kociolek et Thomas (Bacillariophyta) is a new species for the Flora of Russia JF International Journal on Algae JO IJA YR 2016 FD 2017-01-18 VO 18 IS 4 SP 331 OP 336 K1 diatoms K1 new record K1 Gomphosphenia stoermeri K1 morphology K1 SEM K1 Yamal Peninsula K1 Mordyyakha River basin K1 Russia. AB During the SEM study of diatoms in phytoplankton of aquatic ecosystems of the Mordyyakha River basin (Yamal Peninsula, Russia) interesting record was observed. Gomphosphenia stoermeri is a new species for the flora of Russia. Until now, G. stoermeri was known only from a type location in the USA and few rivers in northern Sweden. Morphological observations of the Mordyyakha population of the species revealed the coincidence of the valve dimensions and difference in the number of striae in 10 µm comparing to published data. The paper presents supplemented description of G. stoermeri illustrated by SEM micrographs. PB Begell House LK https://www.dl.begellhouse.com/journals/7dd4467e7de5b7ef,76a66fc36ed1ac9b,115eb8257861d3ba.html