65 
L. inundatum Bigelovii Tuckerm.—In low grounds. DEL- 
AWARE, Tinicum, Porter. 
L. lucidulum Michx.—In cold, damp woods. Monro, for- 
ter; LUZERNE, Heller; NORTHAMPTON, Easton, Porter , 
Bucks, Moyer; DELAWARE, (Smith’s Catalogue); CHESTER; 
LEBANON, Porter; YORK, York Furnace, MacElwee ; 
FRANKLIN and HunTInGpon, Porter; Biarr, Lowrie ; 
SOMERSET, Brown and Saunders ; BUTLER, Shafer. 
L. obscurum L.—In moist woods. Lackawanna, Dudley ,; 
Monroe; LvuZzERNE, Heller; NortuHampton, Porter ; 
Bucks, Moyer ; DELAWARE, (Smith’s Catalogue); CHESs- 
TER ; LANCASTER ; LEBANON, forter ;; FRANKLIN ; HuNT- 
INGDON and CampriA, Porter ; SOMERSET, Brown and 
Saunders ; ERIE, Shafer. 
L. Selago L.—On rocks. Monrox, Water Gap, at the 
summit of the mountain. Elevation 1600 feet, Kuzfe. 
L. tristachyum Pursh.—In woods. Mownror, Tobyhanna 
Mills, Bretton ; HUNTINGDON, Lowrze. 
SELAGINELLACEAE. 
Selaginella Beauv. 
S. apus (L.) Spring.—In moist shaded places, often among grass. 
MonroE and NorTHAMPTON, Easton, Porter; BUCKS, 
Moyer ; MONTGOMERY, Saunders; DELAWARE; CHES- 
TER; FRANKLIN, Mercersburg, and HuNTINGDON, Porter. 
S. rupestris (L.) Spring.—On dry rocks. PIKE, Brownz and 
Saunders ; MONROE ; NORTHAMPTON, Easton, and Bucks, 
Nockamixon Cliffs, Porter; BERKS; CHESTER ; LANCAS- 
TER, Porter. 
ISOETACEAE. 
Isoetes L. 
I. Dodgei A. A. Eaton.—In mud flats. Bucks, Mount Plea- 
sant, fretz. : 
