Cohniella staurogeniiforme Schröd. species homotypic synonym

Tetrastrum peterfii Hortobágyi species accepted

Tetrastrum biradiatum species accepted

Tetrastrum hastiferum (Arnoldi) Korshikov species accepted

Tetrastrum heterocanthum (Nordstedt) Chodat species synonym

Tetrastrum tetracanthum (G.S.West) Brunnthaler species accepted

Tetrastrum reticulatum (Linneus) Lagerheim species accepted

Tetrastrum heterocanthum subsp. heteracanthum Yamagishi subspecies homotypic synonym

Tetrastrum staurogeniaeforme subsp. staurogeniaeforme subspecies homotypic synonym

Tetranephris glabrum (Roll) Ahlstrom & Tiffany species homotypic synonym

Tetrastrum triacanthum Korshikov species accepted

Tetrastrum smithii Prescott species accepted

Tetrastrum wisconsinense G.M.Smith species accepted

Cohniella staurogeniaeforme Schöder species synonym

Tetrastrum heteracanthum (Nordst.) Chodat species accepted

Staurogenia heteracantha Nordstedt species synonym

Tetrastrum glabrum (Y.V.Roll) Ahlstrom & L.H.Tiffany species accepted

Tetrastrum elegans Playfair species accepted

Tetrastrum staurogeniaeforme (Schröd.) Lemmerm. species homotypic synonym

Tetrastrum staurogeniiforme (Schröd.) Lemmerm. species accepted

Cohniella staurogeniaeforme Schröd. species homotypic synonym

Tetrastrum olegans species accepted