]> FH barcode-00302177 United States of America Pennsylvania Tiadaghton State Forest, Algerine Swamp Natural Area, ~0.5 mi N of Lycoming County line, along Gamble Run Rd.; elev. ~1800 ft. Porpidia crustulata (Acharius) Hertel & Knoph (Acharius) Hertel & Knoph 2010-08-16 16:39:28 J. C. Lendemer