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