interpretation of molecular evidence for this poorly studied genus suggests a close affinity with "zannichellia", another genus of aquatic plants. two species are noted for their occurrence in marine environs, "l. cylindrocarpa" and "l. marina", in estuaries and tidal flats. "l. cylindrocarpa" is also found in a variety of brackish inland waters of mainland australia. other species may be found in habitats of fresh to brackish, still or slowly moving, coastal or inland waters.