Porphyra linearis

Porphyra linearis is a red alga found in the coastal waters of Japan. It has only four chromosomes (2n=4)^{[1][clarification needed]} a very low number shared only with the unrelated Haplopappus gracilis.^{[citation needed]}

Porphyra linearis
Scientific classification
Domain:	Eukaryota
Clade:	Archaeplastida
Division:	Rhodophyta
Class:	Bangiophyceae
Order:	Bangiales
Family:	Bangiaceae
Genus:	Porphyra
Species:	P. linearis
Binomial name
Porphyra linearis Greville