Waltheria pringlei Rose & Standley                                                                Isotype

Warea sessilfolia Nash                                                                                    Isotype

Wedelia tegetis Strother                                                                                   Isotype

Wikstroemia isae Skottsberg                                                                           Isotype

Willaridia parviflora Rose                                                                              Isotype

Wimmeria microphylla Radlk.                                                                         Unknown

Wissadula acuminata Rose                                                                             Isotype

Wissadula pringlei Rose                                                                                  Isotype

Wissadula tricarpellata Robinson & Greenman ex Rose                                  Isotype

Withania melanocystis B. L. Robinson                                                            Isotype

Woodwardia martinezii Maxon ex Weatherby                                                 Isotype

Woodwardia martinezii Maxon ex Wetherby                                                  Isotype