Eupatorium prasiifolium var. glanduliferum R.E.Fr. accepted as Ageratina glechonophylla (Less.) R.M.King & H.Rob. (original description)
Heterothalamus acaulis Wedd. ex R.E.Fr. accepted as Baccharis acaulis (Wedd. ex R.E.Fr.) Cabrera (original description)
Heterothalamus boliviensis var. latifolius R.E.Fr. accepted as Baccharis boliviensis (Wedd.) Cabrera (original description)
Lepidophyllum phyliciforme (Meyen) Hieron. ex R.E.Fr. accepted as Parastrephia lucida (Meyen) Cabrera (original description)
Lepidophyllum phyliciforme (Meyen) Hieron. accepted as Parastrephia lucida (Meyen) Cabrera (original description)
Schkuhria pusilla var. aristata R.E.Fr. accepted as Schkuhria multiflora Hook. & Arn. accepted as Picradeniopsis multiflora (Hook. & Arn.) B.G.Baldwin (original description)
Senecio viridis var. radiatus R.E.Fr. (original description)