Class · Red algae · Plantae › Rhodophyceae · NCERT Chapter 3: Plant Kingdom
Red pigment r-phycoerythrin; food stored as floridean starch; mostly marine, often in deep water.
| PolysiphoniaRed alga | Rhodophyceae |
| PorphyraLaver, a red alga | RhodophyceaeEaten as food. |
| GracilariaRed alga | RhodophyceaeA source of agar. |
| GelidiumRed alga | RhodophyceaeA source of agar. |