Related how?

Biota (Life)
Eukaryote (Eukarya)
Diaphoretickes (Plants+hc+sar megagroup)
Archaeplastida
Plant (Green plants)
Biliphyta
Rhodophyta (Red algae)
Rhodophytina
Compsopogonophyceae
Erythropeltidales (Erythropeltales (spelling variation?))
Erythrotrichiaceae

Porphyrostromium (20675092)

Children (6 direct children, 6 direct and indirect children):

Porphyrostromium ciliare

Porphyrostromium boryanum

Porphyrostromium japonicum

Porphyrostromium ligulatum

Porphyrostromium pulvinatum

Porphyrostromium obscurum