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.