Adenostemma platyphyllum Cass. (original description)
Adenostemma swartzii Cass. accepted as Adenostemma verbesina (L.) Sch.Bip. (original description)
Adenostemma tinctorium (Lour.) Cass. (original description)
Carlowizia corymbosa Cass. accepted as Carlina salicifolia (L.f.) Cav. (original description)
Chrysanthellina Cass. accepted as Chrysanthellum Rich. (original description)
Chrysanthellina fasciculata Cass. accepted as Chrysanthellum americanum (L.) Vatke (original description)
Chrysanthellina gracilis Cass. accepted as Chrysanthellum americanum (L.) Vatke (original description)
Chrysanthellina swartzii Cass. accepted as Chrysanthellum americanum (L.) Vatke (original description)
Dimorphanthes angustifolia Cass. accepted as Erigeron bonariensis L. (original description)
Dimorphanthes apurensis (Kunth) Cass. accepted as Conyza laevigata (Rich.) Pruski (original description)
Dimorphanthes coronopifolia (Kunth) Cass. accepted as Conyza coronopifolia Kunth (original description)
Dimorphanthes floribunda (Kunth) Cass. accepted as Erigeron floribundus (Kunth) Sch.Bip. (original description)
Dimorphanthes myosotifolia (Kunth) Cass. accepted as Erigeron primulifolium (Lam.) Greuter (original description)
Dimorphanthes obtusa (Kunth) Cass. accepted as Conyza coronopifolia Kunth (original description)
Dimorphanthes pulchella (Kunth) Cass. (original description)
Dimorphanthes stipulacea Cass. accepted as Conyza ulmifolia (Burm.f.) Kuntze (original description)
Dimorphanthes thesiifolia (Kunth) Cass. accepted as Conyza thesiifolia Kunth (original description)
Diplopappus gnaphalioides Cass. accepted as Erigeron gnaphalioides Kunth (original description)
Diplopappus lavandulifolius (Kunth) Cass. accepted as Diplostephium ericoides (Lam.) Cabrera (original description)
Diplopappus pubescens Cass. accepted as Erigeron pubescens Kunth (original description)
Eupatorium microstemon Cass. accepted as Fleischmannia microstemon (Cass.) R.M.King & H.Rob. (original description)
Felicia brachyglossa Cass. accepted as Felicia cymbalariae subsp. cymbalariae (Aiton) Bolus & Wolley-Dod ex Adamson & T.M.Salter (original description)
Gelasia jacquinii Cass. accepted as Lasiospora hirsuta (Gouan) Cass. (original description)
Harpalium aureum Cass. (original description)
Harpalium truxillense Cass. (original description)
Laennecia Cass. (original description)
Laennecia gnaphalioides (Kunth) Cass. (original description)
Lagenophora commersonii (Cass.) Cass. accepted as Lagenophora nudicaulis (Comm. ex Lam.) Dusén (original description)
Lamyra (Cass.) Cass. accepted as Ptilostemon Cass. (original description)
Lamyra alata Cass. (original description)
Lamyra angustifolia Cass. (original description)
Lamyra diacantha Cass. (original description)
Lamyra glabella Cass. (original description)
Lamyra lobata Cass. (original description)
Lamyra pinnatifida Cass. (original description)
Lamyra stipulacea Cass. (original description)
Lamyra triacantha Cass. (original description)
Lamyra undulata Cass. (original description)
Lapeirousia thunbergii Cass. (original description)
Lapsana glandulifera Cass. accepted as Lapsana communis subsp. grandiflora (M.Bieb.) P.D.Sell (original description)
Lasiospora Cass. (original description)
Lasiospora angustifolia (Fisch.) Cass. accepted as Scorzonera biebersteinii Lipsch. (original description)
Lasiospora cretica (Willd.) Cass. accepted as Scorzonera cretica Willd. (original description)
Lasiospora ensifolia (M.Bieb.) Cass. accepted as Scorzonera ensifolia M.Bieb. (original description)
Lasiospora hirsuta (Gouan) Cass. (original description)
Lasiospora tuberosa Cass. (original description)
Launaea Cass. (original description)
Launaea bellidifolia Cass. accepted as Launaea sarmentosa (Willd.) Sch.Bip. ex Kuntze (original description)
Leachia Cass. accepted as Coreopsis L. (original description)
Leachia crassifolia Cass. (original description)
Leachia lanceolata (L.) Cass. (original description)
Leachia trifoliata Cass. (original description)
Lebetina Cass. accepted as Adenophyllum Pers. (original description)
Lebetina cancellata Cass. accepted as Adenophyllum porophyllum var. cancellatum (Cass.) Strother (original description)
Leibnitzia Cass. (original description)
Leibnitzia cryptogama Cass. (original description)
Leibnitzia phanerogama Cass. (original description)
Leighia (Cass.) Cass. accepted as Viguiera Kunth (original description)
Leighia bicolor Cass. (original description)
Leighia elegans Cass. (original description)
Leighia microphylla (Kunth) Cass. accepted as Pappobolus microphyllus var. microphyllus (original description)
Leontonyx Cass. accepted as Helichrysum Mill. (original description)
Leontonyx coloratus Cass. accepted as Helichrysum tinctum (Thunb.) Hilliard & B.L.Burtt (original description)
Leontonyx tomentosus Cass. accepted as Helichrysum spiralepis Hilliard & B.L.Burtt (original description)
Leontopodium alpinum Cass. accepted as Leontopodium nivale subsp. alpinum (Cass.) Greuter (original description)
Leontopodium sibiricum Cass. accepted as Antennaria rosea subsp. confinis (Greene) R.J.Bayer (original description)
Nocca helianthifolia (Kunth) Cass. accepted as Lagascea helianthifolia Kunth (original description)
Nocca rubra Cass. (original description)
Nocca suaveolens (Kunth) Cass. accepted as Lagascea helianthifolia var. suaveolens (Kunth) B.L.Rob. (original description)
Notobasis (Cass.) Cass. (original description)
Notobasis syriaca (L.) Cass. (original description)
Porcellites Cass. accepted as Hypochaeris L. (original description)
Sclerolepis verticillata Cass. accepted as Sclerolepis uniflora (Walter) Britton, Sterns & Poggenb. (original description)