Achyrocline ramosissima Britton (original description)
Baccharis heterothalmoides Britton accepted as Baccharis darwinii Hook. & Arn. (original description)
Calea robusta Britton accepted as Calea coriacea DC. (original description)
Chuquiraga ferox (Wedd.) Britton accepted as Dasyphyllum ferox (Wedd.) Cabrera (original description)
Eupatorium sessilifolium var. brittonianum Porter (original description)
Eupatorium thymifolium Britton accepted as Neocuatrecasia thymifolia (Britton) R.M.King & H.Rob. (original description)
Eupatorium vaseyi Porter accepted as Eupatorium sessilifolium L. (original description)
Hieracium adenocephalum Britton (original description)
Hieracium mandonii Britton accepted as Hieracium adenocephalum (Sch.Bip.) Arv.-Touv. (original description)
Hieracium mapirense Britton (original description)
Hieracium trichodontum Britton (original description)
Hypochaeris acaulis (J.Rémy) Britton (original description)
Hypochaeris chillensis (Kunth) Britton (original description)
Hypochaeris taraxacoides Britton (original description)
Leontopodium linearifolium (Wedd.) Britton accepted as Antennaria linearifolia Wedd. (original description)
Liabum hastatum (Wedd. ex Britton) Britton accepted as Munnozia senecionidis Benth. (original description)
Liabum ovatum (Wedd.) Britton accepted as Paranephelius ovatus A.Gray ex Wedd. (original description)
Liabum rusbyi Britton accepted as Munnozia rusbyi (Britton) Britton ex Rusby (original description)
Lycoseris boliviana Britton (original description)
Oyedaea boliviana Britton (original description)
Salmea mikanioides Britton accepted as Oblivia mikanioides (Britton) Strother (original description)
Senecio attenuatus var. microphyllus Britton accepted as Senecio potosianus Klatt (original description)
Senecio floccosus Britton (original description)
Senecio floscosus Britton accepted as Pentacalia floccosa (Britton) Cuatrec. (original description)
Senecio sprucei Britton accepted as Pentacalia brittoniana (Hieron.) Cuatrec. (original description)
Senecio yungasensis Britton accepted as Pentacalia yungasensis (Britton) Cuatrec. (original description)
Solidago humilis var. microcephala Porter accepted as Solidago uliginosa Nutt. (original description)
Solidago roanensis Porter (original description)
Solidago speciosa var. pallida Porter accepted as Solidago speciosa subsp. pallida (Porter) Semple (original description)
Viguiera calva (Sch.Bip.) Britton accepted as Viguiera pazensis Rusby (original description)
Viguiera lanceolata Britton (original description)