by William Isaac Fletcher, Franklin Osborne Poole

1897

by William Frederick Poole

1882

by William Minot

1877

by Roland Lomax Vaughan Williams, Edward William Hansell

1921

by William Cushing

1885 · Waltham, Mass. : Mark Press

by William Fawcett, Alfred Barton Rendle, British Museum (Natural History). Dept. of Botany, Spencer Le Marchant Moore

1910

by William Fawcett, Alfred Barton Rendle

1910

by William Fawcett, Alfred Barton Rendle

1926

by William Fawcett, Alfred Barton Rendle

1910

by William Woodfall, John Mounteney Lely, William Hanbury Aggs

1908

by William Russel Dudley

1886

by Hiram Williams Beckwith, John Wentworth, William Henry Harrison

1882