Baccharis taltalensis I.M.Johnst. (original description)
Centaurea atacamensis (Reiche) I.M.Johnst. (original description)
Chaetanthera linearis var. taltalensis I.M.Johnst. (original description)
Encelia canescens var. lanuginosa I.M.Johnst. accepted as Encelia canescens Lam. (original description)
Pachylaena rosea I.M.Johnst. (original description)
Perityle discoidea (Phil.) I.M.Johnst. accepted as Perityle emoryi Torr. (original description)
Perityle emoryi var. elata (Phil.) I.M.Johnst. accepted as Perityle emoryi Torr. (original description)
Polyachyrus annuus I.M.Johnst. (original description)
Polyachyrus mollendoensis I.M.Johnst. accepted as Polyachyrus annuus I.M.Johnst. (original description)
Polyachyrus rigidus I.M.Johnst. accepted as Polyachyrus carduoides Phil. (original description)
Polyachyrus virgatus I.M.Johnst. (original description)
Senecio pelolepis I.M.Johnst. accepted as Senecio micropifolius DC. (original description)
Senecio tinctolobus I.M.Johnst. (original description)