Order Olpidiopsidales

Family Olpidiopsidaceae Sparrow ex Cejp.

Genus Olpidiopsis Cornu

• Olpidiopsis achlyae McLarty – freshwater; parasite on Achlya; common (Кузнецов, 2003).
• Olpidiopsis andreei (Lagerh.) Karling – marine, littoral, sublittoral; parasite on Spongomorpha (Алим, 1962: O. andreei (Lagerh.) Sparrow). Parasite on Zostera; common, dominant (Kuznetsov, Vekhov, 2001). Parasite on Acrosiphonia, Ceramium; rare; Ectocarpus; common, up to dominant (Кузнецов, 2003: O. andreei (Lagerh.) Sparrow).
• Olpidiopsis fusiformis Cornu – freshwater; parasite on Achlya; common (Кузнецов, 2003).
• Olpidiopsis incrassata Cornu – freshwater; parasite on Achlya, Saprolegnia; common (Кузнецов, 2003).
• Olpidiopsis cf. luxurians Barrett – freshwater; parasite on Aphanomyces; common (Кузнецов, 2003).
• Olpidiopsis oedogoniorum (De Wild.) Scherff. – freshwater; parasite on Oedogonium; rare (Кузнецов, 2003: O. oedogoniarum (Sorokin) Scherff.)
• Olpidiopssis pythii (E. J. Butler) Karling – freshwater; parasite on Pythium; common (Кузнецов, 2003).
• Olpidiopsis saprolegniae Cornu – freshwater; parasite on Achlya, Saprolegnia; common, sometimes dominant (Кузнецов, 2003).
• Olpidiopsis schenkiana Zopf – freshwater; parasite on Spirogyra; common (Кузнецов, 2003).
• Olpidiopsis varians Shanor – freshwater, brackish-water; parasite on Achlya; rare (Кузнецов, 2003).
• Olpidiopsis vexans Barrett – marine, littoral; parasite on Saprolegnia; sporadic (Кузнецов, 2003).
• Olpidiopsis zopfii De Wild. – freshwater, brackish-water; parasite on Spirogyra; sporadic (Кузнецов, 2003).

Incertae sedis in order Olpidiopsidales

Genus Gracea M. W. Dick

• Gracea gracilis (E. J. Butler) M. W. Dick – freshwater; parasite on Pythium; rare (Кузнецов, 2003: Olpidiopsis gracile (E. J. Butler) Karling).

rus:Порядок Olpidiopsidales