Ageratum rivale B.L.Rob. accepted as Ageratum riparium B.L.Rob. (original description)
Alomia chiriquensis B.L.Rob. accepted as Ageratum chiriquense (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium aequinoctiale B.L.Rob. accepted as Fleischmannia obscurifolia (Hieron.) R.M.King & H.Rob. (original description)
Eupatorium blakei B.L.Rob. accepted as Fleischmannia blakei (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium eucosmum B.L.Rob. accepted as Kaunia saltensis (Hieron.) R.M.King & H.Rob. (original description)
Eupatorium gynoxymorphum Rusby ex B.L.Rob. accepted as Kaunia gynoximorpha (Rusby ex B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium huigrense B.L.Rob. accepted as Fleischmannia huigrensis (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium kalenbornianum B.L.Rob. accepted as Cronquistianthus kalenbornianus (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium longipetiolatum var. arbusculare B.L.Rob. accepted as Kaunia longipetiolata (Sch.Bip. ex Rusby) R.M.King & H.Rob. (original description)
Eupatorium longipetiolatum var. typicum B.L.Rob. accepted as Kaunia longipetiolata (Sch.Bip. ex Rusby) R.M.King & H.Rob. (original description)
Eupatorium nicaraguense B.L.Rob. accepted as Critonia nicaraguensis (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium pichinchense f. glandulare B.L.Rob. accepted as Ageratina glandularis (B.L.Rob.) H.Rob. (original description)
Eupatorium pichinchense f. typicum B.L.Rob. accepted as Ageratina pichinchensis (Kunth) R.M.King & H.Rob. (original description)
Eupatorium polopolense B.L.Rob. accepted as Fleischmannia polopolensis (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium prionophyllum var. asymmetrum B.L.Rob. accepted as Bartlettina prionophylla (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium prionophyllum var. typicum B.L.Rob. accepted as Bartlettina prionophylla (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium pyramidale f. angustifolium B.L.Rob. (original description)
Eupatorium pyramidale f. typicum B.L.Rob. (original description)
Eupatorium rufescens var. typicum B.L.Rob. accepted as Kaunia rufescens (Lund ex DC.) R.M.King & H.Rob. (original description)
Eupatorium soratae Sch.Bip. ex B.L.Rob. accepted as Fleischmannia soratae (Sch.Bip. ex B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium trinitense (Kuntze) Rusby & B.L.Rob. accepted as Ayapana trinitensis (Kuntze) R.M.King & H.Rob. (original description)
Eupatorium tunariense (Hieron.) B.L.Rob. accepted as Chromolaena tunariensis (Hieron.) R.M.King & H.Rob. (original description)
Mikania amblyolepis B.L.Rob. (original description)
Mikania andrei B.L.Rob. (original description)
Mikania bullata B.L.Rob. (original description)
Mikania clematidiflora Rusby ex B.L.Rob. (original description)
Mikania clematidiflora Rusby (original description)
Mikania filicifolia B.L.Rob. (original description)
Mikania flabellata Rusby ex B.L.Rob. (original description)
Mikania flabellata Rusby (original description)
Mikania globifera Rusby ex B.L.Rob. (original description)
Mikania globifera Rusby (original description)
Mikania gracilipes B.L.Rob. (original description)
Mikania hioramii Britton & B.L.Rob. (original description)
Mikania jamesonii B.L.Rob. (original description)
Mikania lancifolia B.L.Rob. (original description)
Mikania ligustrifolia var. subsessilis B.L.Rob. (original description)
Mikania ligustrifolia var. typica B.L.Rob. (original description)
Mikania mathewsii B.L.Rob. accepted as Mikania nigropunctulata Hieron. (original description)
Mikania miconioides B.L.Rob. accepted as Mikania sylvatica Klatt (original description)
Mikania pennellii B.L.Rob. (original description)
Mikania rugosa B.L.Rob. (original description)
Mikania seemannii B.L.Rob. (original description)
Mikania tarapotensis B.L.Rob. accepted as Mikania decora Poepp. & Endl. (original description)
Mikania trachodes B.L.Rob. (original description)
Mikania vitrea B.L.Rob. accepted as Mikania houstoniana (L.) B.L.Rob. (original description)
Ophryosporus eleutherantherus (Rusby) B.L.Rob. (original description)