Isoetes echinospora var. braunii (Durieu) Engelmann
Isoetes echinospora var. braunii (Durieu) Engelmann is a synonym sensu FNA Ed. Comm., 1993 of:
Isoetes echinospora subsp. muricata (Durieu) Á. Löve & D. Löve, an accepted subspecies name sensu Löve, 1962.