Isogamous condition with non-flagellated gametes is found in
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Chlamydomonas
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Spirogyra
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Volvox
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Fucus
B.
Spirogyra
Isogamy is found in Spirogyra in which both gametes are non-motile.In Chlamydomonas, all three conditions, isogamy anisogamy and oogamy are found.Both motile and non-motile gametes are found. In volvox and Fucus, oogamy is present, where non-motile egg fuses with motile sperm.