IDEI, Masahiko, Kensuke TOYODA, Keigo OSADA, & Shinya SATO 2021 (Oct. 5) Fine structural observation on the frustule of the genus Hydrosera with special emphasis on hitherto-unknown silicified structure Beih. Nova Hedwigia 151: 67-83, 46 figs., 1 table No new names |