Traits Taxon list
Guarreraea stipata (Frenguelli) Kociolek & Guerrero in Guerrero et al., 2018
Orthoseira americana (Kützing) S.A.Spaulding & J.P.Kociolek, 1998
Orthoseira asiatica (Skvortsov) H. Kobayasi in Mayama, S., Idei, M., Osada, K. & T. Nagumo, 2002 accepted as Melosira roeseana var. asiatica Skvortzow, 1938
Orthoseira biportulata Van de Vijver & Beyens in Van de Vijver et al., 2002
Orthoseira circularis (Ehrenberg) M.Rybak, Glushchenko & Kulikovskiy in Rybak et al., 2022
Orthoseira circularis (Ehrenberg) R.M.Crawford, E.Y.Haworth & M.G.Kelly (uncertain > unassessed )
Orthoseira cylindrica M. Rybak, Glushchenko & Kulikovskiy in Rybak et al., 2022
Orthoseira dendrophila (Ehrenberg) F.E.Round, R.M.Crawford & D.G.Mann, 1990 (uncertain > unassessed )
Orthoseira dendroteres (Ehrenberg) F.E.Round, R.M.Crawford & D.G.Mann, 1990 (uncertain > unassessed )
Orthoseira dickieii Thwaites, 1848 (uncertain > unassessed )
Orthoseira distinctiareolata M. Rybak, Glushchenko & Kulikovskiy in Rybak et al., 2022
Orthoseira epidendron (Ehrenberg) F.E.Round, R.M.Crawford & D.G.Mann, 1990 accepted as Stephanosira epidendron Ehrenberg, 1848
Orthoseira europaea (Ehrenberg) Jahn & Kusber accepted as Stephanosira europaea Ehrenberg, 1848
Orthoseira ferrarioana Guerrero, Kociolek et Sala in Guerrero et al., 2018
Orthoseira frenguellii Guerrero, Kociolek et Vouilloud in Guerrero et al., 2018
Orthoseira gremmenii Van de Vijver & Kopalova, 2008
Orthoseira johansenii R.L.Lowe & Kociolek in Lowe et al., 2013
Orthoseira limnopolarensis Van de Vijver & R.M.Crawford, 2014
Orthoseira punctata W.Smith, 1856
Orthoseira radiata M. Rybak, Glushchenko & Kulikovskiy in Rybak et al., 2022
Orthoseira rapanuiensis M.Rybak, Witkowski & Lange- Bertalot in Rybak et al., 2022
Orthoseira roeseana (Rabenhorst) O'Meara, 1876 accepted as Orthosira roeseana (Rabenhorst) Pfitzer, 1871
Orthoseira roeseana var. tropica (Krasske) Lange-Bertalot & Willmann in Lange-Bertalot, Kulbs, Lauser, Norpel-Schempp & Willmann, 1996 accepted as Melosira roeseana var. tropica G.Krasske, 1948
Orthoseira roseana (Rabenhorst) O'Meara, 1875 accepted as Orthoseira roeseana (Rabenhorst) O'Meara, 1876 accepted as Orthosira roeseana (Rabenhorst) Pfitzer, 1871
Orthoseira tropica (Krasske) Metzeltin & Lange-Bertalot in Lange-Bertalot et al., 1996
Orthoseira ursula D. Metzeltin & H. Lange-Bertalot, 2007 (uncertain > unassessed )
Orthoseira verleyenii Van de Vijver in Lowe et al., 2013
Phycavernosa kapitiana Blanco, 2020