"Ferns associated with black walnut trees."; "Brooks, Maurice, 1900-1993."; "Ferns.", "Eastern black walnut."; "Brooks, Maurice, 1900-1993."; "1952"; "

Journal article reprint from: American Fern Journal, v.42:no.4 (1952:Oct./Dec.).

"; ""; "P12427"; "pec"; "Ferns.", "Eastern black walnut."; "14256"; .