Coreopsis nuecensoides E.B.Sm. accepted as Coreopsis nuecensis A.Heller (original description)
Dugaldia pinetorum (Standl.) Bierner (original description)
Heterotheca villosa var. hispida (Hook.) V.L.Harms accepted as Heterotheca villosa var. minor (Hook.) Semple (original description)
Pectis minutiflora D.J.Keil accepted as Pectis brachycephala Urb. (original description)
Pectis purpurea var. lancifolia (Greenm.) D.J.Keil (original description)
Pectis purpurea var. sonorae D.J.Keil (original description)
Psilostrophe mexicana R.C.Br. accepted as Psilostrophe gnaphalodes var. mexicana (R.C.Br.) B.L.Turner (original description)
Stevia chiapensis Grashoff (original description)
Stevia incognita Grashoff (original description)
Stevia lucida var. oaxacana (DC.) Grashoff (original description)