]> [author note: Herbarium and types: OS (Equisetum); additional material at C, CAS, NY] [collector note: North America: C (r. 1929: Equisetum), MSC (5 Equisetum), NY (plants from Ohio), OS] Botany Schaffner, John Henry Schaffner, John Henry J. H. Schaffn. J. H. Schaffner John Henry Schaffner Schaffner, John H. 1866 1939