Acmella ciliata (Kunth) Cass. (original description)
Acmella debilis (Kunth) Cass. accepted as Acmella radicans var. debilis (Kunth) R.K.Jansen (original description)
Acmella fimbriata (Kunth) Cass. accepted as Acmella ciliata (Kunth) Cass. (original description)
Acmella linnaei Cass. accepted as Spilanthes acmella (L.) Murray accepted as Blainvillea acmella (L.) Philipson (original description)
Acmella mutisii (Kunth) Cass. accepted as Acmella oppositifolia (Lam.) R.K.Jansen accepted as Heliopsis buphthalmoides (Jacq.) Dunal (original description)
Acmella spilanthoides Cass. accepted as Sphagneticola trilobata (L.) Pruski (original description)
Acmella tenella (Kunth) Cass. accepted as Acmella radicans var. debilis (Kunth) R.K.Jansen (original description)
Acmella uliginosa (Sw.) Cass. (original description)
Callias Cass. (original description)
Charieis caerulea Cass. accepted as Felicia heterophylla (Cass.) Grau (original description)
Coleosanthus tiliifolius Cass. accepted as Hebeclinium macrophyllum (L.) DC. (original description)
Heliopsis platyglossa Cass. accepted as Guizotia abyssinica (L.f.) Cass. (original description)
Heliopsis subg. Kallias Cass. accepted as Heliopsis Pers. (original description)
Isocarpha alternifolia Cass. accepted as Isocarpha atriplicifolia (L.) R.Br. ex DC. (original description)
Isocarpha kunthii Cass. accepted as Spilanthes leucantha Kunth (original description)
Isocarpha oppositifolia (L.) Cass. (original description)
Ixeris polycephala Cass. (original description)
Jasonia discoidea Cass. (original description)
Jasonia radiata Cass. (original description)
Jurinea alata (Desf.) Cass. (original description)
Jurinea tomentosa Cass. (original description)
Kallias (Cass.) Cass. accepted as Heliopsis Pers. (original description)
Kallias dubia Cass. (original description)
Kallias ovata Cass. accepted as Heliopsis buphthalmoides (Jacq.) Dunal (original description)
Kentrophyllum album Cass. (original description)
Kentrophyllum luteum Cass. (original description)
Kerneria dubia Cass. accepted as Bidens pilosa L. (original description)
Kerneria helianthoides (Kunth) Cass. (original description)
Kerneria leucantha Cass. accepted as Bidens pilosa L. (original description)
Kerneria rubifolia Cass. (original description)
Kuhnia paniculata Cass. accepted as Brickellia eupatorioides (L.) Shinners (original description)