Bidens feddemana Sherff accepted as Bidens chiapensis var. feddemana (Sherff) Melchert (original description)
Bidens gracillima Sherff (original description)
Bidens mcvaughii Sherff accepted as Bidens chiapensis Brandegee (original description)
Bidens minensis Sherff (original description)
Bidens mollifolia var. glabrescens Sherff accepted as Bidens mollifolia Sherff (original description)
Bidens polyglossa Sherff (original description)
Coreocarpus cronquistii Sherff accepted as Bidens cronquistii (Sherff) Melchert (original description)
Coreocarpus hintonii Sherff accepted as Bidens hintonii (Sherff) Melchert (original description)
Cosmos caudatus var. exaristatus Sherff accepted as Cosmos caudatus Kunth (original description)
Cosmos diversifolius var. deficiens Sherff accepted as Cosmos deficiens (Sherff) Melchert (original description)
Cosmos hintonii Sherff accepted as Simsia sanguinea A.Gray (original description)
Cosmos intercedens Sherff (original description)
Cosmos jaliscensis Sherff (original description)
Cosmos mcvaughii Sherff (original description)
Cosmos sessilis Sherff (original description)
Cosmos stellatus Sherff accepted as Cosmos sessilis var. stellatus (Sherff) Melchert (original description)
Machaeranthera arida B.L.Turner & D.B.Horne accepted as Arida arizonica (R.C.Jacks. & R.R.Johnson) D.R.Morgan & R.L.Hartm. (original description)
Machaeranthera boltoniae (Greene) B.L.Turner & D.B.Horne accepted as Psilactis asteroides A.Gray (original description)
Machaeranthera brevilingulata (Sch.Bip. ex Hemsl.) B.L.Turner & D.B.Horne accepted as Psilactis brevilingulata Sch.Bip. ex Hemsl. (original description)
Machaeranthera coulteri (A.Gray) B.L.Turner & D.B.Horne (original description)
Machaeranthera crispa (Brandegee) B.L.Turner & D.B.Horne (original description)
Machaeranthera mexicana B.L.Turner & D.B.Horne accepted as Psilactis gentryi (Standl.) D.R.Morgan (original description)
Machaeranthera sect. Psilactis (A.Gray) B.L.Turner & D.B.Horne accepted as Psilactis A.Gray (original description)
Machaeranthera tenuis (S.Watson) B.L.Turner & D.B.Horne (original description)