[A-B]
[C-D] [E-G] [H-L] [M-N] [O-P] [Q-S] [T-Z]| Genus Autor | New Genus |
|---|---|
| Acanthocalycium Backeberg | |
| Acanthocereus (Engelmann ex A.Berger) Britton & Rose | |
| Acanthocephala Backeberg, nom. illeg. | Parodia |
| Acantholobivia Backeberg | Echinopsis |
| Acanthorhipsalis (K.Schumann) Britton & Rose | Lepismium |
| Acanthorhipsalis Kimnach | Lepismium |
| Akersia Buining | Cleistocactus |
| Ancistrocactus Britton & Rose | Sclerocactus |
| Anisocereus Backeberg | Pachycereus |
| Aporocactus Lemaire | Disocactus |
| Arequipa Britton & Rose | Oreocereus |
| Arequipiopsis Kreuzinger & Buining | Oreocereus |
| Ariocarpus Scheidweiler | |
| Armatocereus Backeberg | |
| Arrojadoa Britton & Rose | |
| Arthrocereus A.Berger | |
| Astrophytum Lemaire | |
| Austrocactus Britton & Rose | |
| Austrocephalocereus Backeberg | Micranthocereus |
| Austrocylindropuntia Backeberg | Opuntia |
| Aylostera Spegazzini | Rebutia |
| Aztekium Boedeker | |
| Azureocereus Akers & H.Johnson | Browningia |
| Backebergia Bravo | Pachycereus |
| Bartschella Britton & Rose | Mammillaria |
| Bergerocactus Britton & Rose | |
| Binghamia Britton & Rose | Espostoa |
| Bisnaga Orcutt | Ferocactus |
| Blossfeldia Werdermann | |
| Bolivicereus Cardenas | Cleistocactus |
| Bonifazia Standley & Steyermark | Disocactus |
| Borzicactella F.Ritter | Cleistocactus |
| Borzicactus Riccobono | Cleistocactus |
| Brachycalycium Backeberg | Gymnocalycium |
| Brachycereus Britton & Rose | |
| Brasilicactus Backeberg | Parodia |
| Brasilicereus Backeberg | |
| Brasiliopuntia (K.Schumann) A.Berger | Opuntia |
| Brasiliparodia F.Ritter | Parodia |
| Bravocactus Doweld | Turbinicarpus |
| Browningia Britton & Rose | |
| Buiningia Buxbaum | Coleocephalocereus |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Cactus Britton & Rose | Melocactus |
| Cactus Linnaeus | Mammillaria |
| Calymmanthium F.Ritter | |
| Carnegiea Britton & Rose | |
| Castellanosia Cardenas | Browningia |
| Cephalocereus Pfeiffer | |
| Cephalocleistocactus F.Ritter | |
| Cereus Miller | |
| Chamaecereus Britton & Rose | Echinopsis |
| Chiapasia Britton & Rose | Disocactus |
| Chichipia Backeberg | Polaskia |
| Chileorebutia Fric ex F.Ritter | Eriosyce |
| Chilita Orcutt | Mammillaria |
| Cintia Knize & Riha | |
| Cipocereus F.Ritter | |
| Cleistocactus Lemaire | |
| Cochemiea (K. Brandegee) Walton | Mammillaria |
| Cochiseia W.H.Earle | Escobaria |
| Coleocephalocereus Backeberg | |
| Coloradoa Boissevain & C.Davidson | Sclerocactus |
| Consolea Lemaire | Opuntia |
| Copiapoa Britton & Rose | |
| Corryocactus Britton & Rose | |
| Corynopuntia F.M.Knuth | Opuntia |
| Coryphantha (Engelmann) Lemaire | |
| Cryptocereus Alexander | Selenicereus |
| Cullmannia Distefano | Peniocereus |
| Cumarinia Buxbaum | Coryphantha |
| Cumulopuntia F.Ritter | Opuntia |
| Cylindropuntia (Engelmann) F.M.Knuth | Opuntia |
| Deamia Britton & Rose | Selenicereus |
| Delaetia Backeberg | Eriosyce |
| Dendrocereus Britton & Rose | |
| Denmoza Britton & Rose | |
| Digitorebutia Buining | Rebutia |
| Discocactus Pfeiffer | |
| Disocactus Lindley | |
| Dolichothele (K.Schumann) Britton & Rose | Mammillaria |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Eccremocactus Britton & Rose | Weberocereus |
| Echinocactus Link & Otto | |
| Echinocereus Engelmann | |
| Echinofossulocactus Britton & Rose | Stenocactus |
| Echinofossulocactus Lawrence | Echinocactus |
| Echinomastus Britton & Rose | Sclerocactus |
| Echinopsis Zuccarini | |
| Emorycactus Doweld | Echinocactus |
| Encephalocarpus A.Berger | Pelecyphora |
| Eomatucana F.Ritter | Matucana |
| Epiphyllanthus A.Berger | Schlumbergera |
| Epiphyllopsis (A.Berger) Backeberg & F.M.Knuth | Hatiora |
| Epiphyllum Haworth | |
| Epiphyllum Pfeiffer | Schlumbergera |
| Epithelantha F.A.C.Weber ex Britton & Rose | |
| Erdisia Britton & Rose | Corryocactus |
| Eriocactus Backeberg | Parodia |
| Eriocephala Backeberg | Parodia |
| Eriocereus Riccobono | Harrisia |
| Eriosyce Philippi | |
| Erythrorhipsalis A.Berger | Rhipsalis |
| Escobaria Britton & Rose | |
| Escontria Rose | |
| Espostoa Britton & Rose | |
| Espostoopsis Buxbaum | |
| Eulychnia Philippi | |
| Facheiroa Britton & Rose | |
| Ferocactus Britton & Rose | |
| Floribunda F.Ritter | Cipocereus |
| Frailea Britton & Rose | |
| Geohintonia Glass & Fitz Maurice | |
| Gerocephalus F.Ritter | Espostoopsis |
| Glandulicactus Backeberg | Sclerocactus |
| Grusonia F. Reichenbach ex Britton & Rose | Opuntia |
| Gymnanthocereus Backeberg | Browningia |
| Gymnocactus Backeberg | Turbinicarpus |
| Gymnocalycium Pfeiffer ex Mittler | |
| Gymnocereus Backeberg | Browningia |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Haageocereus Backeberg | |
| Hamatocactus Britton & Rose | Thelocactus |
| Hariota De Candolle | Hatiora |
| Harrisia Britton | |
| Haseltonia Backeberg | Cephalocereus |
| Hatiora Britton & Rose | |
| Heliabravoa Backeberg | Polaskia |
| Helianthocereus Backeberg | Echinopsis |
| Heliocereus (A.Berger) Britton & Rose | Disocactus |
| Hertrichocereus Backeberg | Stenocereus |
| Hildewintera F.Ritter | Cleistocactus |
| Homalocephala Britton & Rose | Echinocactus |
| Horridocactus Backeberg | Eriosyce |
| Hylocereus (A.Berger) Britton & Rose | |
| Hymenorebutia Fric ex Buining | Echinopsis |
| Islaya Backeberg | Eriosyce |
| Isolatocereus (Backeberg) Backeberg | Stenocereus |
| Jasminocereus Britton & Rose | |
| Kadenicarpus Doweld | Turbinicarpus |
| Krainzia Backeberg | Mammillaria |
| Lasiocereus F.Ritter | Haageocereus |
| Lemaireocereus Britton & Rose | Pachycereus |
| Leocereus Britton & Rose | |
| Lepidocoryphantha Backeberg | Coryphantha |
| Lepismium Pfeiffer | |
| Leptocereus (A.Berger) Britton & Rose | |
| Leptocladodia Buxbaum | Mammillaria |
| Leuchtenbergia Hooker | |
| Leucostele Backeberg | Echinopsis |
| Lobeira Alexander | Disocactus |
| Lobivia Britton & Rose | Echinopsis |
| Lophocereus (A.Berger) Britton & Rose | Pachycereus |
| Lophophora J.M.Coulter | |
| Loxanthocereus Backeberg | Cleistocactus |
| Lymanbensonia Kimnach | Lepismium |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Machaerocereus Britton & Rose | Stenocereus |
| Maihuenia (Philippi ex F.A.C.Weber) K.Schumann | |
| Maihueniopsis Spegazzini | Opuntia |
| Malacocarpus Salm Dyck | Parodia |
| Mamillopsis Morren ex Britton & Rose | Mammillaria |
| Mammillaria Haworth | |
| Mammilloydia Buxbaum | Mammillaria |
| Marenopuntia Backeberg | Opuntia |
| Marginatocereus (Backeberg) Backeberg | Pachycereus |
| Maritimocereus Akers & Buining | Cleistocactus |
| Marniera Backeberg | Selenicereus |
| Marshallocereus Backeberg | Stenocereus |
| Matucana Britton & Rose | |
| Mediocactus Britton & Rose | Selenicereus |
| Mediolobivia Backeberg | Rebutia |
| Melocactus Link & Otto | |
| Meyerocactus Doweld | Echinocactus |
| Micranthocereus Backeberg | |
| Mila Britton & Rose | |
| Mirabella F.Ritter | Cereus |
| Mitrocereus (Backeberg) Backeberg | Pachycereus |
| Monvillea Britton & Rose | Acanthocereus |
| Monvillea sensu Britton & Rose | Praecereus |
| Morangaya G.D.Rowley | Echinocereus |
| Morawetzia Backeberg | Oreocereus |
| Myrtillocactus Console | |
| Navajoa Croizat | Pediocactus |
| Neoabbottia Britton & Rose | Leptocereus |
| Neobesseya Britton & Rose | Escobaria |
| Neobuxbaumia Backeberg | |
| Neocardenasia Backeberg | Neoraimondia |
| Neochilenia Backeberg ex Doelz | Eriosyce |
| Neodawsonia Backeberg | Cephalocereus |
| Neoevansia W.T.Marshall | Peniocereus |
| Neogomesia Castaneda | Ariocarpus |
| Neolloydia Britton & Rose | |
| Neolobivia (Backeberg) Y.lto | Echinopsis |
| Neomammillaria Britton & Rose | Mammillaria |
| Neoporteria Britton & Rose | Eriosyce |
| Neoraimondia Britton & Rose | |
| Neowerdermannia Fric | |
| Nopalea Salm Dyck | Opuntia |
| Nopalxochia Britton & Rose | Disocactus |
| Normanbokea Kladiwa & Buxbaum | Turbinicarpus |
| Notocactus (K.Schumann) Fric | Parodia |
| Nyctocereus (A.Berger) Britton & Rose | Peniocereus |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Obregonia Fric | |
| Oehmea Buxbaum | Mammillaria |
| Opuntia Miller | |
| Oreocereus (A.Berger) Riccobono | |
| Oroya Britton & Rose | |
| Ortegocactus Alexander | |
| Pachycereus (A.Berger) Britton & Rose | |
| Parodia Spegazzini | |
| Pediocactus Britton & Rose | |
| Pelecyphora Ehrenberg | |
| Peniocereus (A.Berger) Britton & Rose | |
| Pereskia Miller | |
| Pereskiopsis Britton & Rose | |
| Peruvocereus Akers | Haageocereus |
| Pfeiffera Salm-Dyck | Lepismium |
| Phellosperma Britton & Rose | Mammillaria |
| Philippicereus Backeberg | Eulychnia |
| Phyllocactus Link | Epiphyllum |
| Pierrebraunia Esteves Pereira | Arrojadoa |
| Pilocanthus B.W.Benson & Backeberg | Pediocactus |
| Pilocereus Lemaire | Cephalocereus |
| Pilocereus K.Schumann | Pilosocereus |
| Pilocopiopoa F.Ritter | Copiopoa |
| Pilosocereus Byles & G.D.Rowley | |
| Piptanthocereus (A.Berger) Riccobono | Cereus |
| Platyopuntia (Engelmann) F.Ritter | Opuntia |
| Polaskia Backeberg | |
| Porfiria Bödeker | Mammillaria |
| Praecereus Buxbaum | |
| Pseudoacanthocereus F.Ritter | |
| Pseudoespostoa Backeberg | Espostoa |
| Pseudolobivia (Backeberg) Backeberg | Echinopis |
| Pseudomammillaria Buxbaum | Mammillaria |
| Pseudomitrocereus Bravo & Buxbaum | Pachycereus |
| Pseudonopalxochia Backeberg | Disocactus |
| Pseudopilocereus Buxbaum | Pilosocereus |
| Pseudorhipsalis Britton & Rose | |
| Pseudozygocactus Backeberg | Hatiora |
| Pterocactus K.Schumann | |
| Pterocereus T.MacDougall & Miranda | Pachycereus |
| Puna R.Kiesling | Opuntia |
| Pygmaeocereus Johnson & Backeberg | |
| Pyrrhocactus Berger | Eriosyce |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Quiabentia Britton & Rose | |
| Rapicactus Buxbaum & Oehme | Turbinicarpus |
| Rathbunia Britton & Rose | Stenocereus |
| Rauhocereus Backeberg | |
| Rebutia K.Schumann | |
| Reicheocactus Backeberg | Echinopsis |
| Rhipsalidopsis Britton & Rose | Hatiora |
| Rhipsalis Gaertner | |
| Rhodocactus (A.Berger) F.M.Knuth | Pereskia |
| Ritterocereus Backeberg | Stenocereus |
| Rodentiophila Backeberg | Eriosyce |
| Rooksbya (Backeberg) Backeberg | Neobuxbaumia |
| Roseocactus A.Berger | Ariocarpus |
| Roseocereus Backeberg | Harrisia |
| Samaipaticereus Cardenas | |
| Schlumbergera Lemaire | |
| Sclerocactus Britton & Rose | |
| Selenicereus (A.Berger) Britton & Rose | |
| Seticereus Backeberg | Cleistocactus |
| Seticleistocactus Backeberg | Cleistocactus |
| Setiechinopsis (Backeberg) De Haas | Echinopsis |
| Siccobaccatus Braun & Esteves Pereira | Micranthocereus |
| Soehrensia Backeberg | Echinopsis |
| Solisia Britton & Rose | Mammillaria |
| Stenocactus (K.Schumann) A.W.HiII | |
| Stenocereus (A.Berger) Riccobono | |
| Stephanocereus A.Berger | |
| Stetsonia Britton 8.Rose | |
| Strombocactus Britton & Rose | |
| Strophocactus Britton & Rose | Selenicereus |
| Submatucana Backeberg | Matucana |
| Subpilocereus Backeberg | Cereus |
| Sulcorebutia Backeberg | Rebutia |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
| Genus Autor | New Genus |
|---|---|
| Tacinga Britton & Rose | |
| Tephrocactus Lemaire | Opuntia |
| Thelocactus (K.Schumann) Britton & Rose | |
| Thelocephala Y.lto | Eriosyce |
| Thrixanthocereus Backeberg | Espostoa |
| Torreyocactus Doweld | Thelocactus |
| Toumeya Britton & Rose | Sclerocactus |
| Trichocereus (A.Berger) Riccobono | Echinopsis |
| Turbinicarpus (Backeberg) Buxbaum & Backeberg | |
| Uebelmannia Buining | |
| Utahia Britton & Rose | Pediocactus |
| Vatricania Backeberg | Espostoa |
| Weberbauerocereus Britton & Rose | |
| Weberocereus Britton & Rose | |
| Weingartia Werdermann | Rebutia |
| Werckleocereus Britton & Rose | Weberocereus |
| Wigginsia D.M.Porter | Parodia |
| Wilcoxia Britton & Rose | Echinocereus |
| Wilmattea Britton & Rose | Hylocereus |
| Winteria F.Ritter | Cleistocactus |
| Winterocereus Backeberg | Cleistocactus |
| Wittia K.Schumann | Disocactus |
| Wittiocactus Rauschert | Disocactus |
| Yungasocereus F.Ritter | Cleistocactus |
| Zehntnerella Britton & Rose | Facheiroa |
| Zygocactus K.Schumann | Schlumbergera |
[A-B] [C-D] [E-G] [H-L]
[M-N] [O-P] [Q-S] [T-Z]
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