Aspilia silphioides f. aristata Hicken accepted as Aspilia silphioides (Hook. & Arn.) Benth. & Hook.f. (original description)
Chaetanthera polymalla (Phil.) Hoffm. ex Hicken (original description)
Chaetanthera pulvinata var. polymalla (Phil.) Hicken (original description)
Chaetanthera sphaeroidalis (Reiche) Hicken (original description)
Eupatorium vattuonei Hicken accepted as Austrobrickellia patens (D.Don ex Hook. & Arn.) R.M.King & H.Rob. (original description)
Gnaphalium satureioides var. vattuonei Hicken (original description)
Haplopappus arbutoides var. glandulosus Hicken (original description)
Hypochaeris stenophylla var. laciniata Hicken accepted as Hypochaeris montana (Phil.) Reiche (original description)
Hysterionica bakeri Hicken (original description)
Hysterionica bakeri f. decumbens Hicken accepted as Hysterionica pulchella Cabrera (original description)
Senecio lorentziella Hicken (original description)
Senecio mendocinus f. saltensis Hicken accepted as Senecio octolepis Griseb. (original description)
Senecio pseudotites var. glabra Hicken accepted as Senecio pseudotites Griseb. (original description)