Helenium fimbriatum (Michx.) A.Gray (original description)
Helenium lanatum (Benth.) A.Gray accepted as Dugaldia integrifolia (Kunth) Cass. (original description)
Madia sativa var. dissitiflora (Nutt.) A.Gray accepted as Madia gracilis (Sm.) D.D.Keck & J.C.Clausen ex Applegate (original description)
Microseris laciniata var. procera (A.Gray) A.Gray accepted as Microseris laciniata subsp. laciniata (Hook.) Sch.Bip. (original description)
Microseris linearifolia (Nutt.) A.Gray accepted as Uropappus lindleyi (DC.) Nutt. (original description)
Microseris sect. Scorzonella (Nutt.) A.Gray (original description)
Tetradymia sect. Lepidosparton A.Gray accepted as Lepidospartum (A.Gray) A.Gray (original description)