• Ceranthera densiflora (Benth.) Gray accepted as Dicerandra densiflora Benth.
• Ceranthera linearifolia Ell. accepted as Dicerandra linearifolia (Ell.) Benth.
• Cubelium concolor (T.F. Forst.) Raf. accepted as Hybanthus concolor (T.F. Forst.) Spreng.
• Hybanthus attenuatus (Humb. & Bonpl. ex J.A. Schultes) G.K. Schulze
• Hybanthus concolor (T.F. Forst.) Spreng.
• Hybanthus linearifolius (Vahl) Urban
• Hybanthus linearis (Torr.) Shinners accepted as Hybanthus verticillatus (Ortega) Baill.
• Hybanthus portoricensis Urban accepted as Hybanthus linearifolius (Vahl) Urban
• Hybanthus verticillatus (Ortega) Baill.
• Ionidium linearifolium (Vahl) Gingins accepted as Hybanthus linearifolius (Vahl) Urban
• Ionidium portoricense (Urban) Krug & Urban ex Britt. & Wilson accepted as Hybanthus linearifolius (Vahl) Urban
• Isodendrion forbesii St. John accepted as Isodendrion laurifolium Gray
• Isodendrion hawaiiense St. John accepted as Isodendrion pyrifolium Gray
• Isodendrion hillebrandii St. John accepted as Isodendrion pyrifolium Gray
• Isodendrion hosakae St. John
• Isodendrion lanaiense St. John accepted as Isodendrion pyrifolium Gray
• Isodendrion laurifolium Gray
• Isodendrion longifolium Gray
• Isodendrion lydgatei St. John accepted as Isodendrion laurifolium Gray
• Isodendrion maculatum St. John accepted as Isodendrion longifolium Gray
• Isodendrion molokaiense St. John accepted as Isodendrion pyrifolium Gray
• Isodendrion pyrifolium Gray
• Isodendrion remyi St. John accepted as Isodendrion pyrifolium Gray
• Isodendrion subsessilifolium Heller accepted as Isodendrion laurifolium Gray
• Isodendrion waianaeense St. John accepted as Isodendrion laurifolium Gray
• Melicytus samoensis (Christophersen) A.C. Smith
• Phyllanoa colombiana Croizat
• Spathularia michauxii (Britt.) Small accepted as Saxifraga michauxii Britt.
• Viola aberrans Greene accepted as Viola conjugens Greene
• Viola abundans House accepted as Viola sagittata Ait.
• Viola adunca Sm.
• Viola aduncoides A. & D. Löve accepted as Viola adunca Sm.
• Viola affinis Le Conte
• Viola agellae Pollard
• Viola angellae Pollard accepted as Viola bernardii Greene
• Viola appalachiensis Henry
• Viola arvensis Murr.
• Viola aurea Kellogg
• Viola bakeri Greene
• Viola beckwithii Torr. & Gray
• Viola bellidifolia Greene accepted as Viola adunca Sm.
• Viola bernardii Greene
• Viola bicolor Pursh
• Viola biflora Linnaeus
• Viola bissellii House
• Viola biternata Greene accepted as Viola sheltonii Torr.
• Viola blanda Willd.
• Viola brauniae Grover ex Cooperrider
• Viola brittoniana Pollard
• Viola caesariensis House accepted as Viola mistura House
• Viola californica M.S. Baker
• Viola canadensis Linnaeus
• Viola canina Linnaeus
• Viola cascadensis M.S. Baker accepted as Viola adunca Sm.
• Viola cestrica House accepted as Viola sagittata Ait.
• Viola chalcosperma Brainerd accepted as Viola affinis Le Conte
• Viola chamissoniana Gingins
• Viola champlainensis House accepted as Viola sororia Willd.
• Viola charlestonensis M.S. Baker & J.C. Clausen ex Clokey
• Viola charlestownensis M.S. Baker & J. Clausen
• Viola chinensis G. Don accepted as Viola patrinii DC.
• Viola clauseniana Baker
• Viola columbiana House accepted as Viola filicetorum Greene
• Viola concolor T.F. Forst. accepted as Hybanthus concolor (T.F. Forst.) Spreng.
• Viola conjugens Greene
• Viola consobrina House
• Viola consocia House
• Viola consona House accepted as Viola filicetorum Greene
• Viola conspersa Reichenb.
• Viola conturbata House accepted as Viola bissellii House
• Viola convicta House accepted as Viola mistura House
• Viola cooperrideri H.E. Ballard
• Viola cordifolia (Nutt.) Schwein.
• Viola cucullata Ait.
• Viola cuneata S. Wats.
• Viola curtisii E. Forster
• Viola davisii House
• Viola dimissa House accepted as Viola redacta House
• Viola discors House accepted as Viola slavinii House
• Viola dissena House
• Viola dissensa House accepted as Viola hollickii House
• Viola dissita House accepted as Viola ravida House
• Viola douglasii Steud.
• Viola dowelliana House accepted as Viola consobrina House
• Viola eamesii House
• Viola eclipes H.E. Ballard
• Viola egglestonii Brainerd
• Viola emarginata (Nutt.) Le Conte accepted as Viola sagittata Ait.
• Viola epipsila Ledeb.
• Viola epipsiloides A. & D. Löve accepted as Viola epipsila Ledeb.
• Viola eriocarpon (Nutt.) Schwein. accepted as Viola pubescens Ait.
• Viola erratica House accepted as Viola sagittata Ait.
• Viola esculenta Ell. accepted as Viola palmata Linnaeus
• Viola falcata Greene accepted as Viola palmata Linnaeus
• Viola fernaldii House accepted as Viola conjugens Greene
• Viola festata House accepted as Viola palmata Linnaeus
• Viola filicetorum Greene
• Viola fimbriatula Sm. accepted as Viola sagittata Ait.
• Viola flettii Piper
• Viola floridana Brainerd accepted as Viola sororia Willd.