Additions to the Flora of Cedar County, Iowa

A survey of the vascular plants of Cedar County, Iowa, was made by the senior author during the growing season of 1950. A previous paper (Fay, 1952) presented an annotated list of 775 species found in the area studied. Subsequent collecting trips by the authors of this paper have resulted in the discovery of additional species. Several misidentifications caused errors in the previous account; these are corrected here. Introduced species are marked by an asterisk. The present paper brings up to date the number of species known to occur in Cedar County. It also describes the various ecological habitats of the county by listing characteristic species found in each