Neidium ladogense var. densestriatum f. peribryum - Lowe & Kociolek

This diatom has been reported only from the park.



. Although never abundant it has been reported from Beech Flats Prong, the westernmost tributary of the Oconaluftee River, Swain Co., NC, Indian Creek, eastern tributary of Deep Creek, Swain Co., NC, Little Pigeon River, Middle Prong, near Hiking Club cabin, Greenbrier, Sevier Co., TN and Ramsey Prong, tributary of the Middle Prong Little Pigeon River, Sevier Co., TN