Isoetes "loweii" A potential hybrid. Isoetaceae
Comments: Disturbed swamp forest along Okey Creek, DeSoto Natl. Forest, Wayne County, Mississippi. 17 June 2013. Megaspores from plants from this site exhibited considerable variation in size, suggesting hybridization. 31° 30' 3.1" North,88° 45' 44.4" West (31.500863, -88.762323)
Added: 6/26/13
WARNING: Accurate determination of this plant or fungus depends on more than this single image.