Hydrosera
''Hydrosera'' is a genus of diatom described in 1858 by George Charles Wallich. Hydrosera exhibits valve margins resembling two superimposed triangles and the presence of a distinct rimoportula. Hydrosera also feature porefields at the three poles of one of the apparent triangles, which contain pseudocelli. Dead ''Hydrosera'' create siliceous oozes. Hydrosera grows in the streams of southern coastal areas and tropical islands. Species * ''Hydrosera boryana'' Pantocsek, 1889 * ''Hydrosera brasiliensis'' Zimmerman, 1918 * ''Hydrosera compressa'' Wallich, 1858 * ''Hydrosera javanica'' (Cleve) * ''Hydrosera mauritiana'' Bergon, 1890 * ''Hydrosera novaecaesarae'' Boyer, 1895 * ''Hydrosera tricornuta'' Stolterfoth, 1881 * ''Hydrosera tricoronata'' Stolterfoth, 1881 * ''Hydrosera trifoliata'' Cleve, 1881 * ''Hydrosera triquetra'' Wallich, 1858 * ''Hydrosera whampoensis'' (A.F. Schwarz) Deby, 1891 References

{{Taxonbar, from=Q25366248 Diatom genera Diatoms ...
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