TL;DR: An investigation of herbarium, field-collected, and cultured material of Inlernoretia fryeana Setchell & Gardner showed that this minute endophytic alga, endemic to the northeastern Pacific Ocean and formerly placed in the Chaetophoraceae, belongs to the Phaeophyta rather than to the Chlorophyta.
Abstract: An investigation of herbarium, field-collected, and cultured material of Inlernoretia fryeana Setchell & Gardner showed that this minute endophytic alga, endemic to the northeastern Pacific Ocean and formerly placed in the Chaetophoraceae, belongs to the Phaeophyta rather than to the Chlorophyta. The alga lacks true starch and has stalked pyrenoids, plurilocular sporangia, and zoospores with a typical phaeophycean morphology. The monotypic genus Internoretia is transferred, provisionally without change in name, to the Ectocarpaceae.