Erythrocephalum bicolor Merxm. accepted as Erythrocephalum longifolium Benth. ex Oliv. (original description)
Euryops walterorum Merxm. (original description)
Geigeria mendoncae Merxm. (original description)
Geigeria nianganensis Dinter ex Merxm. (original description)
Hippia hutchinsonii Merxm. (original description)
Kleinia adenocalyx (Dinter) Merxm. (original description)
Kleinia herreiana (Dinter) Merxm. (original description)
Nolletia ericoides Merxm. (original description)
Pteronia kingesii Merxm. accepted as Pteronia polygalifolia O.Hoffm. (original description)
Pteronia pomonae Merxm. (original description)
Senecio rhopalophyllus (Dinter) Merxm. accepted as Senecio aloides DC. (original description)