Inventory of Rare or Endangered Non-Vascular Plants and Ferns Occurring in the Floodplain of the Mississippi River between Cairo, Illinois, and St. Paul, Minnesota, and in the Floodplain of the Illinois River between Grafton, Illinois, and Chicago.

摘要

The primary objective of this study was to determine which species of non-vascular plants and ferns which occur in the Illinois and Mississippi River floodplains are rare or endangered. Other objectives were to list the habitats in which these species occur, in what medium or on what substrate, and the possible impacts on these plants by increased barge traffic. (Author)