Children (10 direct children, 10 direct and indirect children):
Stictyosiphon adriaticus
Stictyosiphon arcticus
Stictyosiphon charoides
Stictyosiphon griffithsianus
Stictyosiphon laxus
Stictyosiphon lofotensis
Stictyosiphon lutarius
Stictyosiphon soriferus
Stictyosiphon tortilis
Stictyosiphon subarticulatus