Home ยป Rhodophyceae is called red algae because of the pigment Plant kingdom MCQs Rhodophyceae is called red algae because of the pigment January 31, 2022 6 Views Q. Rhodophyceae is called red algae because of the pigment A. Fucoxanthin B. Phycoerythrin C. Carotenoids D. Chlorophyll c Answer: Phycoerythrin