Aplophyllum ilicifolium (Cav.) Cass. (original description)
Aplophyllum linearifolium (Cav.) Cass. accepted as Mutisia linearifolia Cav. (original description)
Gorteria ictinus Cass. accepted as Gorteria diffusa subsp. diffusa Thunb. (original description)
Guariruma Cass. accepted as Mutisia L.f. (original description)
Guariruma hastatum Cass. accepted as Mutisia cochabambensis Hieron. (original description)
Guariruma inflexum (Cav.) Cass. (original description)
Guariruma retrorsum (Cav.) Cass. (original description)
Guariruma sinuatum (Cav.) Cass. accepted as Mutisia sinuata Cav. (original description)
Guariruma subspinosa (Cav.) Cass. (original description)
Guariruma subspinosum (Cav.) Cass. accepted as Mutisia subspinosa Cav. (original description)
Hipposeris Cass. accepted as Onoseris Willd. (original description)
Hipposeris acerifolia (Kunth) Cass. (original description)
Hipposeris salicifolia (Kunth) Cass. accepted as Onoseris salicifolia subsp. salicifolia (original description)
Hymenolepis Cass. (original description)
Hymenolepis elegans Cass. accepted as Gonospermum canariense (DC.) Less. (original description)
Lycoseris Cass. (original description)
Lycoseris hyssopifolia Cass. (original description)
Lycoseris mexicana (L.f.) Cass. (original description)
Morysia Cass. accepted as Athanasia L. (original description)
Morysia diversifolia Cass. accepted as Athanasia dentata (L.) L. (original description)
Mulgedium Cass. accepted as Lactuca L. (original description)
Mulgedium integrifolium Cass. accepted as Lactuca canadensis L. (original description)
Mulgedium lyratum Cass. accepted as Lactuca floridana (L.) Gaertn. (original description)
Mulgedium runcinatum Cass. accepted as Lactuca sibirica (L.) Benth. ex Maxim. (original description)
Mycelis Cass. accepted as Prenanthes L. (original description)
Mycelis angulosa Cass. accepted as Lactuca muralis (L.) Gaertn. (original description)