New records of alien species in the Ohio vascular flora

Examination of specimens of vascular plants from various herbaria, as well as field collections, have revealed 70 taxa not previously reported for Ohi o, or previously reported without documentation. This paper documents these new taxa, 44% of which are escapes of woody landscape plants. The specimen s cited represent 55 genera in 30 families. Of these, the following genera are first reports for the state: Achyranthes, Albizia, Carthamus, Cercidiph yllum, Cotoneaster, Dactyloctenium, Fontanesia, Gaillardia, Guizotia, Gypso phila, Stenosiphon, Tripsacum, and Zinnia, Cercidiphyllaceae is the only fa mily reported as new for the state. Some taxa cited in this paper represent first reports as escapes for North America These are Cotoneaster divaricat us (Rosaceae), Fontanesia fortunei (Oleaceae), Magnolia x soulangeana (Magn oliaceae), Magnolia stellata (Magnoliaceae), Viburnum buddleifolium (Caprif oliaceae), and Viburnum x rhytidiphylloides (Caprifoliaceae).