Botrychium obliquum dissectum. (Spreng.) Peoria Co., V. H. Chase.
Botrychium virginianum. (L.) Common in rich woods in the northeastern part of the state, and probably throughout. It often occurs in colonies, sometimes of a dozen or more plants. In woods along Lake Michigan it readies a height of two feet.
OSMUNDACEAE.
Osmunda cinnamomea. (L.) Abundant in swampy areas in the northeastern counties, especially in peaty ground near Lake Michigan within the limits of the ancient glacial Lake Chicago. Swampy areas in sand barrens west of Kankakee, “Menard county. Hall.” (P.) Starved Rock. Clute.
Osmunda Claytoniana (L.) Frequent in swamps and wet woods from Kankakee county north in the eastern part of the state. Peoria, Brendel. Henderson Co., Patterson. “Moist ravines, common.” says Patterson for the state at large.
Osmunda regalis (L.) Has a range similar to the last and is quite frequent northeast in swamps and wet woods. Peoria, Brendel. Mason county, Bebb. Infrequent says Patterson for the state as a whole.
POLYPODIACEAE.
Adiantum pedatum (L.) Common throughout the state in rich woods.
Polypodium vulgare (L.) On cliffs of sandstone, La Salle and Ogle counties. “Common in Jackson and Union, French, Forbes.” (P.)
Polypodium polypodioides (L.) Common throughout the state in rich woods.