Chthonia bonplandiana Cass. accepted as Pectis bonplandiana Kunth (original description)
Chthonia canescens Cass. accepted as Pectis canescens Kunth (original description)
Chthonia ciliaris Cass. accepted as Pectis ciliaris L. (original description)
Chthonia elongata Cass. accepted as Pectis elongata Kunth (original description)
Chthonia leptocephala Cass. accepted as Pectis glaucescens (Cass.) D.J.Keil (original description)
Chthonia pygmaea Cass. accepted as Pectis pygmaea Kunth (original description)
Chthonia repens Cass. accepted as Pectis serpyllifolia Less. (original description)
Cirsium dioicum Cass. accepted as Cirsium arvense (L.) Scop. (original description)
Logfia brevifolia Cass. (original description)
Logfia lanceolata Cass. accepted as Filago arvensis L. (original description)
Logfia subulata Cass. accepted as Logfia gallica (L.) Coss. & Germ. (original description)
Lonas minima Cass. (original description)
Lonas umbellata Cass. (original description)
Lophiolepis (Cass.) Cass. accepted as Cirsium Mill. (original description)
Lophiolepis araneosa Cass. (original description)
Lophiolepis calocephala Cass. (original description)
Lophiolepis dubia Cass. accepted as Cirsium vulgare (Savi) Ten. (original description)
Lophiolepis nutans Cass. (original description)
Loxodon Cass. accepted as Chaptalia Vent. (original description)
Loxodon brevipes Cass. (original description)
Loxodon longipes Cass. accepted as Chaptalia runcinata Kunth (original description)
Lucilia acutifolia (Poir.) Cass. (original description)
Lucilia microphylla Cass. accepted as Lucilia acutifolia (Poir.) Cass. (original description)
Ucacea Cass. (original description)