Phylum Phaeophyta (brown algae)
1) They are brown algae, apart from chlorophyll they have brown pigment i.e. fucoxanthin which predominates.
2) They are one of ,the most complex algae and unlike flowering 'plants, their cells contain centrioles.
3) The common rockweed, Fucus, is in this group, as are the giant kelps along the pacific coast.
Some examples : Eucus