OF DENISON UNIVERSITY. IOI 



430. Onoclea L. 



935. O. sensibilis L. Sensitive Fern. 

 Damp woods, somewhat common. 



431. Woodsia R. Brown. 



936. W. Ilvensis R. Brown. 

 Sandstone rocks, very rare; Toboso. 



937. W. obtusa Torr. 

 Sandstone rocks, rare; Station 16. 



432. Osmunda L. 



938. O. regalis L. Flowering Fern. 

 Cranberry Marsh, Old Reservoir, rare. 



939. O. Claytoniana L. 



Damp soil, especially moist woods, common. 



940. O. cinnamomea L. Cinnamon Fern. 

 Cranberry Marsh, Old Reservoir, rare. 



CIII. OPHIOGLOSSACEAE. 



433. Botrychium Swartz. 



941. P. ternatum Swartz. Var. intermedium Gray. 



Rich woods, rare; woods of Mr. Moses Goodrich, one mile north 

 of Granville. 



942. B. Virginianum Swartz. 

 Rich woods, common. 



CIV. LYCOPODIACEAE. 



434. iLycopodium L. 



943. L. lucidulum Michx. 



Rocky woods', rare; Stations 12 and 17. 



944. L. obscurum L. 



Rocky banks, wooded, rare; Spring Valley, Granville. 



945. L. complanatum L. Ground-Pine. 

 Woods, somewhat rare, Welsh Hills. 



