Arnica alpina subsp. sornborgeri (Fernald) Maguire accepted as Arnica angustifolia subsp. angustifolia Vahl (original description)
Arnica amplexicaulis subsp. genuina Maguire accepted as Pentacalia amplexicaulis (Kunth) Cuatrec. (original description)
Arnica amplexicaulis subsp. prima (Maguire) Maguire accepted as Arnica lanceolata subsp. prima (Maguire) Strother & S.J.Wolf (original description)
Arnica chamissonis subsp. incana (A.Gray) Maguire accepted as Arnica chamissonis Less. (original description)
Arnica cordifolia subsp. whitneyi (Fernald) Maguire accepted as Arnica cordifolia Hook. (original description)
Arnica lonchophylla subsp. arnoglossa (Greene) Maguire accepted as Arnica lonchophylla Greene (original description)
Arnica lonchophylla subsp. chionopappa (Fernald) Maguire accepted as Arnica lonchophylla Greene (original description)
Arnica lonchophylla subsp. genuina Maguire accepted as Arnica lonchophylla Greene (original description)
Arnica longifolia subsp. genuina Maguire accepted as Arnica longifolia D.C.Eaton (original description)
Arnica longifolia subsp. myriadenia (Piper) Maguire accepted as Arnica longifolia D.C.Eaton (original description)
Arnica louiseana subsp. genuina Maguire (original description)
Arnica louiseana subsp. griscomii (Fernald) Maguire accepted as Arnica griscomii Fernald (original description)
Arnica parryi subsp. genuina Maguire accepted as Arnica parryi A.Gray (original description)
Arnica parryi subsp. sonnei (Greene) Maguire accepted as Arnica parryi A.Gray (original description)
Arnica parviflora subsp. genuina Maguire accepted as Arnica discoidea Benth. (original description)
Arnica spathulata subsp. eastwoodiae (Rydb.) Maguire accepted as Arnica spathulata Greene (original description)
Arnica spathulata subsp. genuina Maguire accepted as Arnica spathulata Greene (original description)
Aster helenae Merr. (original description)
Lactuca gracilipetiolata Merr. (original description)
Prenanthes volubilis Merr. (original description)
Senecio pentanthus Merr. accepted as Synotis pentantha (Merr.) M.Tang, C.Ren & Q.E.Yang (original description)
Vernonia adenophylla Merr. (original description)