Achyrocline satureioides var. crassiuscula Malme accepted as Achyrocline crassiuscula (Malme) Deble & Marchiori (original description)
Actinella tweediei Malme (original description)
Adenostemma brasilianum var. triangulare (DC.) Malme accepted as Adenostemma brasilianum (Pers.) Cass. (original description)
Centratherum camporum var. albicans (Hassl.) Malme accepted as Centratherum punctatum Cass. (original description)
Erigeron montevidensis var. dunensis Malme accepted as Erigeron blakei Cabrera (original description)
Eupatorium tweedieanum var. angustius (DC.) Malme (original description)
Gnaphalium spicatum f. purpurascens Malme accepted as Gamochaeta purpurea (L.) Cabrera (original description)
Leucopsis psammophila var. calvescens Malme accepted as Noticastrum malmei Zardini (original description)
Senecio ceratophyllus var. macrodon Malme (original description)