In 1852, David Dale Owen, United States, Geologist, published his Report of a Geological Survey of Wisconsin, Iowa, and Minnesota, and included in the volume as Article V a systematic catalog of plants of the Northwest by C. C. Parry. Parry\u27s list bears the misleading title Systematic Catalogue of Plants of Wisconsin and Minnesota, made in Connection with the Geological Survey of the Northwest, during the season of 1848. But in the second paragraph of Mr. Parry\u27s explanatory introduction to his list he says, I have also incorporated some personal observations made during a previous season in the State of Iowa, being properly comprised within the District of the Northwest, and enabling me to present a more complete view of the botanical features of the region than could otherwise be done during a single season\u27s operations. His Iowa collection was made, therefore, during a season previous to 1848, and thus precedes Bessey\u27s list of 1870 by more than twenty-two years. The Iowa plants are scattered in the list among the Wisconsin and Minnesota plants and it seems worthwhile to cull them out into the separate list given below
