Notes on Canadian sedges, Cyperaceae

The sedges Carex seorsa and Fuirena pumila, found in the Niagara Peninsula, Ontario, are additions to the Canadian flora.Reports of Carex suberecta in Canada are confirmed, based on old specimens and recent collections in Essex County, Ontario.Carex emmonsii and C. atlantica subsp.capillacea are additions to the Ontario flora.All five taxa have eastern, southern or midwestern distributions in the United States and are believed to have been previously overlooked at their northern limits in Canada.The European C. sylvatica, known previously in North America only from Long Island, New York, is reported from four localities in southern Ontario.