Ignatiaceae is a
family of
green algae
The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as ...
in the class
Ulvophyceae.
It is the only family in the order Ignatiales.
References
Ulvophyceae
Ulvophyceae families
{{Ulvophyceae-stub