| Adenosacme Wall. ex Miq. | Mycetia Reinw. | | | Adenosacme Wall. ex Miq. | Mycetia Reinw. | Rubiaceae |
| Adenothola Lem. | Manettia Mutis | | | Adenothola Lem. | Manettia Mutis | Rubiaceae |
| Aeginetia Cav. | Bouvardia Salisb. | | | Aeginetia Cav. | Bouvardia Salisb. | Rubiaceae |
| Aetheonema Rchb. | Gaertnera Lam. | | | Aetheonema Rchb. | Gaertnera Lam. | Rubiaceae |
| Afroknoxia Verdc. | Knoxia L. | | | Afroknoxia Verdc. | Knoxia L. | Rubiaceae |
| Agathisanthemum Klotzsch | | a | | Agathisanthemum Klotzsch | | Rubiaceae |
| Alleizettea Dubard & Dop | Danais Comm. ex Vent. | | | Alleizettea Dubard & Dop | Danais Comm. ex Vent. | Rubiaceae |
| Amaracarpus Blume | | a | | Amaracarpus Blume | | Rubiaceae |
| Ambraria Heist. ex Fabr. | Anthospermum L. | | | Ambraria Heist. ex Fabr. | Anthospermum L. | Rubiaceae |
| Amphiasma Bremek. | | a | | Amphiasma Bremek. | | Rubiaceae |
| Amphidasya Standl. | | a | | Amphidasya Standl. | | Rubiaceae |
| Amphistemon Groeninckx | | a | | Amphistemon Groeninckx | | Rubiaceae |
| Andersonia Willd., nom. inval. | Gaertnera Lam. | | | Andersonia Willd., nom. inval. | Gaertnera Lam. | Rubiaceae |
| Anistelma Raf. | Hedyotis L. | | | Anistelma Raf. | Hedyotis L. | Rubiaceae |
| Anotis DC. | Arcytophyllum Willd. ex Schult. & Schult. f. | | | Anotis DC. | Arcytophyllum Willd. ex Schult. & Schult. f. | Rubiaceae |
| Antherura Lour. | Psychotria L. | | | Antherura Lour. | Psychotria L. | Rubiaceae |
| Anthorrhiza C. R. Huxley & Jebb | | a | | Anthorrhiza C. R. Huxley & Jebb | | Rubiaceae |
| Anthospermum L. | | a | | Anthospermum L. | | Rubiaceae |
| Antoniana Tussac | Faramea Aubl. | | | Antoniana Tussac | Faramea Aubl. | Rubiaceae |
| Aparinanthus Fourr. | Galium L. | | | Aparinanthus Fourr. | Galium L. | Rubiaceae |
| Aparine Guett. | Galium L. | | | Aparine Guett. | Galium L. | Rubiaceae |
| Aparinella Fourr. | Galium L. | | | Aparinella Fourr. | Galium L. | Rubiaceae |
| Apomuria Bremek. | Psychotria L. | | | Apomuria Bremek. | Psychotria L. | Rubiaceae |
| Appunia Hook. f. | | a | | Appunia Hook. f. | | Rubiaceae |
| Arbulocarpus Tennant | Spermacoce L. | | | Arbulocarpus Tennant | Spermacoce L. | Rubiaceae |
| Arcytophyllum Willd. ex Schult. & Schult. f. | | a | | Arcytophyllum Willd. ex Schult. & Schult. f. | | Rubiaceae |
| Argostemma Wall. | | a | | Argostemma Wall. | | Rubiaceae |
| Argostemmella Ridl. | Argostemma Wall. | | | Argostemmella Ridl. | Argostemma Wall. | Rubiaceae |
| Aspera Moench | Galium L. | | | Aspera Moench | Galium L. | Rubiaceae |
| Asperula L. | | a | | Asperula L. | | Rubiaceae |
| Asterophyllum Schimp. & Spenn. | Asperula L. | | | Asterophyllum Schimp. & Spenn. | Asperula L. | Rubiaceae |
| Astiella Jovet | | a | | Astiella Jovet | | Rubiaceae |
| Aucubaephyllum Ahlb. | Psychotria L. | | | Aucubaephyllum Ahlb. | Psychotria L. | Rubiaceae |
| Axanthes Blume | Urophyllum Wall. | | | Axanthes Blume | Urophyllum Wall. | Rubiaceae |
| Axanthopsis Korth. | Urophyllum Wall. | | | Axanthopsis Korth. | Urophyllum Wall. | Rubiaceae |
| Balfourina Kuntze | Didymaea Hook. f. | | | Balfourina Kuntze | Didymaea Hook. f. | Rubiaceae |
| Bartlingia Rchb. | Plocama Aiton | | | Bartlingia Rchb. | Plocama Aiton | Rubiaceae |
| Bataprine Nieuwl. | | a | | Bataprine Nieuwl. | | Rubiaceae |
| Batopedina Verdc. | | a | | Batopedina Verdc. | | Rubiaceae |
| Baumannia K. Schum. | Knoxia L. | | | Baumannia K. Schum. | Knoxia L. | Rubiaceae |
| Baumannia DC. | Damnacanthus C. F. Gaertn. | | | Baumannia DC. | Damnacanthus C. F. Gaertn. | Rubiaceae |
| Belicea Lundell | Morinda L. | | | Belicea Lundell | Morinda L. | Rubiaceae |
| Bellardia Schreb. | Coccocypselum P. Browne | | | Bellardia Schreb. | Coccocypselum P. Browne | Rubiaceae |
| Bellynkxia Müll. Arg. | Appunia Hook. f. | | | Bellynkxia Müll. Arg. | Appunia Hook. f. | Rubiaceae |
| Bigelovia Spreng. | Spermacoce L. | | | Bigelovia Spreng. | Spermacoce L. | Rubiaceae |
| Billardiera Vahl | Coussarea Aubl. | | | Billardiera Vahl | Coussarea Aubl. | Rubiaceae |
| Blepharostemma Fourr. | Asperula L. | | | Blepharostemma Fourr. | Asperula L. | Rubiaceae |
| Borrera Spreng., orth. var. | Spermacoce L. | | | Borrera Spreng., orth. var. | Spermacoce L. | Rubiaceae |
| Borreria G. Mey. | Spermacoce L. | | | Borreria G. Mey. | Spermacoce L. | Rubiaceae |
| Bouvardia Salisb. | | a | | Bouvardia Salisb. | | Rubiaceae |
| Buchozia LʼHér. ex Juss. | Serissa Comm. ex Juss. | | | Buchozia LʼHér. ex Juss. | Serissa Comm. ex Juss. | Rubiaceae |
| Bupleuroides Moench | Phyllis L. | | | Bupleuroides Moench | Phyllis L. | Rubiaceae |
| Caelospermum Blume, orth. var. | Coelospermum Blume | | | Caelospermum Blume, orth. var. | Coelospermum Blume | Rubiaceae |
| Calanda K. Schum. | Pentanisia Harv. | | | Calanda K. Schum. | Pentanisia Harv. | Rubiaceae |
| Callicocca Schreb. | Psychotria L. | | | Callicocca Schreb. | Psychotria L. | Rubiaceae |
| Callipeltis Steven | | a | | Callipeltis Steven | | Rubiaceae |
| Calycodendron A. C. Sm. | Psychotria L. | | | Calycodendron A. C. Sm. | Psychotria L. | Rubiaceae |
| Camptopus Hook. f. | Psychotria L. | | | Camptopus Hook. f. | Psychotria L. | Rubiaceae |
| Caprosma G. Don, orth. var. | Coprosma J. R. Forst. & G. Forst. | | | Caprosma G. Don, orth. var. | Coprosma J. R. Forst. & G. Forst. | Rubiaceae |
| Carajasia R. M. Salas et al. | | a | | Carajasia R. M. Salas et al. | | Rubiaceae |
| Carapichea Aubl. | | a | | Carapichea Aubl. | | Rubiaceae |
| Carinta W. Wight | Geophila D. Don | | | Carinta W. Wight | Geophila D. Don | Rubiaceae |
| Carpacoce Sond. | | a | | Carpacoce Sond. | | Rubiaceae |
| Carphalea Juss. | | a | | Carphalea Juss. | | Rubiaceae |
| Carterella Terrell | | a | | Carterella Terrell | | Rubiaceae |
| Cephaelis Sw. | Psychotria L. | | | Cephaelis Sw. | Psychotria L. | Rubiaceae |
| Cephaleis Vahl, orth. var. | Psychotria L. | | | Cephaleis Vahl, orth. var. | Psychotria L. | Rubiaceae |
| Ceratites Sol. ex Miers | Rudgea Salisb. | | | Ceratites Sol. ex Miers | Rudgea Salisb. | Rubiaceae |
| Cleisocratera Korth. | Saprosma Blume | | | Cleisocratera Korth. | Saprosma Blume | Rubiaceae |
| Coccocypselum P. Browne | | a | | Coccocypselum P. Browne | | Rubiaceae |
| Codaria Kuntze | Lerchea L. | | | Codaria Kuntze | Lerchea L. | Rubiaceae |
| Coelospermum Blume | | a | | Coelospermum Blume | | Rubiaceae |
| Colladonia Spreng. | Palicourea Aubl. | | | Colladonia Spreng. | Palicourea Aubl. | Rubiaceae |
| Commitheca Bremek. | Pauridiantha Hook. f. | | | Commitheca Bremek. | Pauridiantha Hook. f. | Rubiaceae |
| Condalia Ruiz & Pav. | Coccocypselum P. Browne | | | Condalia Ruiz & Pav. | Coccocypselum P. Browne | Rubiaceae |
| Congdonia Müll. Arg. | Declieuxia Kunth | | | Congdonia Müll. Arg. | Declieuxia Kunth | Rubiaceae |
| Conostomium (Stapf) Cufod. | | a | | Conostomium (Stapf) Cufod. | | Rubiaceae |
| Conotrichia A. Rich. | Manettia Mutis | | | Conotrichia A. Rich. | Manettia Mutis | Rubiaceae |
| Coprosma J. R. Forst. & G. Forst. | | a | | Coprosma J. R. Forst. & G. Forst. | | Rubiaceae |
| Cordylostigma Groeninckx & Dessein | | a | | Cordylostigma Groeninckx & Dessein | | Rubiaceae |
| Corynula Hook. f. | Leptostigma Arn. | | | Corynula Hook. f. | Leptostigma Arn. | Rubiaceae |
| Coursiana Homolle | | a | | Coursiana Homolle | | Rubiaceae |
| Coussarea Aubl. | | a | | Coussarea Aubl. | | Rubiaceae |
| Craterispermum Benth. | | a | | Craterispermum Benth. | | Rubiaceae |
| Cremocarpon Baill. | | a | | Cremocarpon Baill. | | Rubiaceae |
| Crucianella L. | | a | | Crucianella L. | | Rubiaceae |
| Cruciata Mill. | | a | | Cruciata Mill. | | Rubiaceae |
| Cruckshanksia Hook. & Arn. | | a | | Cruckshanksia Hook. & Arn. | | Rubiaceae |
| Crusea Cham. & Schltdl. | | a | | Crusea Cham. & Schltdl. | | Rubiaceae |
| Cuncea Buch.-Ham. ex D. Don | Knoxia L. | | | Cuncea Buch.-Ham. ex D. Don | Knoxia L. | Rubiaceae |
| Cunina Gay | Nertera Banks ex Gaertn. | | | Cunina Gay | Nertera Banks ex Gaertn. | Rubiaceae |
| Cymelonema C. Presl | Urophyllum Wall. | | | Cymelonema C. Presl | Urophyllum Wall. | Rubiaceae |
| Cynanchica Fourr. | Asperula L. | | | Cynanchica Fourr. | Asperula L. | Rubiaceae |
| Cynocrambe Gagnebin | Theligonum L. | | | Cynocrambe Gagnebin | Theligonum L. | Rubiaceae |
| Damnacanthus C. F. Gaertn. | | a | | Damnacanthus C. F. Gaertn. | | Rubiaceae |
| Danais Comm. ex Vent. | | a | | Danais Comm. ex Vent. | | Rubiaceae |
| Dasus Lour. | Lasianthus Jack | | | Dasus Lour. | Lasianthus Jack | Rubiaceae |
| Dasycephala (DC.) Hook. f. | Diodia Gronov. | | | Dasycephala (DC.) Hook. f. | Diodia Gronov. | Rubiaceae |
| Dasys Lem. | Lasianthus Jack | | | Dasys Lem. | Lasianthus Jack | Rubiaceae |
| Daun-Contu Adans. | Paederia L. | | | Daun-Contu Adans. | Paederia L. | Rubiaceae |
| Debia Neupane & N. Wikstr. | | a | | Debia Neupane & N. Wikstr. | | Rubiaceae |
| Decapenta Raf. | Diodia Gronov. | | | Decapenta Raf. | Diodia Gronov. | Rubiaceae |
| Declieuxia Kunth | | a | | Declieuxia Kunth | | Rubiaceae |
| Delpechia Montrouz. | Psychotria L. | | | Delpechia Montrouz. | Psychotria L. | Rubiaceae |
| Democritea DC. | Serissa Comm. ex Juss. | | | Democritea DC. | Serissa Comm. ex Juss. | Rubiaceae |
| Denscantia E. L. Cabral & Bacigalupo | | a | | Denscantia E. L. Cabral & Bacigalupo | | Rubiaceae |
| Dentella J. R. Forst. & G. Forst. | | a | | Dentella J. R. Forst. & G. Forst. | | Rubiaceae |
| Dentillaria Kuntze | Knoxia L. | | | Dentillaria Kuntze | Knoxia L. | Rubiaceae |
| Dibrachionostylus Bremek. | | a | | Dibrachionostylus Bremek. | | Rubiaceae |
| Dictyospora Hook. f. | Hedyotis L. | | | Dictyospora Hook. f. | Hedyotis L. | Rubiaceae |
| Didymaea Hook. f. | | a | | Didymaea Hook. f. | | Rubiaceae |
| Dichrospermum Bremek. | Spermacoce L. | | | Dichrospermum Bremek. | Spermacoce L. | Rubiaceae |
| Dillenia Heist. ex Fabr. | Sherardia L. | | | Dillenia Heist. ex Fabr. | Sherardia L. | Rubiaceae |
| Dimetia (Wight & Arn.) Meisn. | | a | | Dimetia (Wight & Arn.) Meisn. | | Rubiaceae |
| Diodella Small | Hexasepalum Bartl. ex DC. | | | Diodella Small | Hexasepalum Bartl. ex DC. | Rubiaceae |
| Diodia Gronov. | | a | | Diodia Gronov. | | Rubiaceae |
| Diodioides Loefl., nom. inval. | Spermacoce L. | | | Diodioides Loefl., nom. inval. | Spermacoce L. | Rubiaceae |
| Diodois Pohl, nom. inval. | Psyllocarpus Mart. & Zucc. | | | Diodois Pohl, nom. inval. | Psyllocarpus Mart. & Zucc. | Rubiaceae |
| Dioneiodon Raf. | Diodia Gronov. | | | Dioneiodon Raf. | Diodia Gronov. | Rubiaceae |
| Diotocarpus Hochst. | Pentanisia Harv. | | | Diotocarpus Hochst. | Pentanisia Harv. | Rubiaceae |
| Diotocranus Bremek. | Mitrasacmopsis Jovet | | | Diotocranus Bremek. | Mitrasacmopsis Jovet | Rubiaceae |
| Diphragmus C. Presl | Spermacoce L. | | | Diphragmus C. Presl | Spermacoce L. | Rubiaceae |
| Diplophragma (Wight & Arn.) Meisn. | Hedyotis L. | | | Diplophragma (Wight & Arn.) Meisn. | Hedyotis L. | Rubiaceae |
| Dirichletia Klotzsch | | a | | Dirichletia Klotzsch | | Rubiaceae |
| Disodea Pers. | Paederia L. | | | Disodea Pers. | Paederia L. | Rubiaceae |
| Disperma J. F. Gmel. | Mitchella L. | | | Disperma J. F. Gmel. | Mitchella L. | Rubiaceae |
| Dolianthus C. H. Wright | | a | | Dolianthus C. H. Wright | | Rubiaceae |
| Dolichocarpa K. L. Gibbons | | a | | Dolichocarpa K. L. Gibbons | | Rubiaceae |
| Dolichopentas Kårehed & B. Bremer | | a | | Dolichopentas Kårehed & B. Bremer | | Rubiaceae |
| Douarrea Montrouz. | Psychotria L. | | | Douarrea Montrouz. | Psychotria L. | Rubiaceae |
| Dressleriopsis Dwyer | Lasianthus Jack | | | Dressleriopsis Dwyer | Lasianthus Jack | Rubiaceae |
| Dukea Dwyer | Raritebe Wernham | | | Dukea Dwyer | Raritebe Wernham | Rubiaceae |
| Durringtonia R. J. F. Hend. & Guymer | | a | | Durringtonia R. J. F. Hend. & Guymer | | Rubiaceae |
| Duvaucellia Bowdich | Kohautia Cham. & Schltdl. | | | Duvaucellia Bowdich | Kohautia Cham. & Schltdl. | Rubiaceae |
| Dyctiospora Reinw. ex Korth. | Hedyotis L. | | | Dyctiospora Reinw. ex Korth. | Hedyotis L. | Rubiaceae |
| Dychotria Raf. | Psychotria L. | | | Dychotria Raf. | Psychotria L. | Rubiaceae |
| Dysoda Lour. | Serissa Comm. ex Juss. | | | Dysoda Lour. | Serissa Comm. ex Juss. | Rubiaceae |
| Dysodidendron Gardner | Saprosma Blume | | | Dysodidendron Gardner | Saprosma Blume | Rubiaceae |
| Dysosmia Miq. | Saprosma Blume | | | Dysosmia Miq. | Saprosma Blume | Rubiaceae |
| Ebelia Rchb. | Diodia Gronov. | | | Ebelia Rchb. | Diodia Gronov. | Rubiaceae |
| Edrastima Raf. | | a | | Edrastima Raf. | | Rubiaceae |
| Eionitis Bremek. | Oldenlandia L. | | | Eionitis Bremek. | Oldenlandia L. | Rubiaceae |
| Encopea C. Presl | Faramea Aubl. | | | Encopea C. Presl | Faramea Aubl. | Rubiaceae |
| Endolasia Turcz. | Manettia Mutis | | | Endolasia Turcz. | Manettia Mutis | Rubiaceae |
| Endopogon Raf. | Diodia Gronov. | | | Endopogon Raf. | Diodia Gronov. | Rubiaceae |
| Epidendroides Sol. | Myrmecodia Jack | | | Epidendroides Sol. | Myrmecodia Jack | Rubiaceae |
| Ereicoctis (DC.) Kuntze | Arcytophyllum Willd. ex Schult. & Schult. f. | | | Ereicoctis (DC.) Kuntze | Arcytophyllum Willd. ex Schult. & Schult. f. | Rubiaceae |
| Ernodea Sw. | | a | | Ernodea Sw. | | Rubiaceae |
| Erythrodanum Thouars | Nertera Banks ex Gaertn. | | | Erythrodanum Thouars | Nertera Banks ex Gaertn. | Rubiaceae |
| Euarthronia Nutt. ex A. Gray, nom. inval. | Coprosma J. R. Forst. & G. Forst. | | | Euarthronia Nutt. ex A. Gray, nom. inval. | Coprosma J. R. Forst. & G. Forst. | Rubiaceae |
| Eumachia DC. | | a | | Eumachia DC. | | Rubiaceae |
| Eumorphanthus A. C. Sm. | Psychotria L. | | | Eumorphanthus A. C. Sm. | Psychotria L. | Rubiaceae |
| Eurhotia Neck., nom. inval. | Psychotria L. | | | Eurhotia Neck., nom. inval. | Psychotria L. | Rubiaceae |
| Eurynome DC. | Coprosma J. R. Forst. & G. Forst. | | | Eurynome DC. | Coprosma J. R. Forst. & G. Forst. | Rubiaceae |
| Evea Aubl. | Psychotria L. | | | Evea Aubl. | Psychotria L. | Rubiaceae |
| Exallage Bremek. | | a | | Exallage Bremek. | | Rubiaceae |
| Famarea Vitman, orth. var. | Faramea Aubl. | | | Famarea Vitman, orth. var. | Faramea Aubl. | Rubiaceae |
| Faramea Aubl. | | a | | Faramea Aubl. | | Rubiaceae |
| Figuierea Montrouz. | Coelospermum Blume | | | Figuierea Montrouz. | Coelospermum Blume | Rubiaceae |
| Froehlichia D. Dietr., orth. var. | Coussarea Aubl. | | | Froehlichia D. Dietr., orth. var. | Coussarea Aubl. | Rubiaceae |
| Froelichia Vahl | Coussarea Aubl. | | | Froelichia Vahl | Coussarea Aubl. | Rubiaceae |
| Fructesca DC. ex Meisn. | Gaertnera Lam. | | | Fructesca DC. ex Meisn. | Gaertnera Lam. | Rubiaceae |
| Fuchsia Sw. | Schradera Vahl | | | Fuchsia Sw. | Schradera Vahl | Rubiaceae |
| Furcatella Baum.-Bod., nom. inval. | Psychotria L. | | | Furcatella Baum.-Bod., nom. inval. | Psychotria L. | Rubiaceae |
| Gaertnera Lam. | | a | | Gaertnera Lam. | | Rubiaceae |
| Galianthe Griseb. | Spermacoce L. | | | Galianthe Griseb. | Spermacoce L. | Rubiaceae |
| Galium L. | | a | | Galium L. | | Rubiaceae |
| Gallion Pohl, orth. var. | Galium L. | | | Gallion Pohl, orth. var. | Galium L. | Rubiaceae |
| Gallium Mill., orth. var. | Galium L. | | | Gallium Mill., orth. var. | Galium L. | Rubiaceae |
| Galopina Thunb. | | a | | Galopina Thunb. | | Rubiaceae |
| Galvania Vand. | Psychotria L. | | | Galvania Vand. | Psychotria L. | Rubiaceae |
| Gamotopea Bremek. | | a | | Gamotopea Bremek. | | Rubiaceae |
| Ganguebina Vell., orth. var. | Manettia Mutis | | | Ganguebina Vell., orth. var. | Manettia Mutis | Rubiaceae |
| Geocardia Standl. | Geophila D. Don | | | Geocardia Standl. | Geophila D. Don | Rubiaceae |
| Geoherpum Willd. ex Schult. & Schult. f. | Mitchella L. | | | Geoherpum Willd. ex Schult. & Schult. f. | Mitchella L. | Rubiaceae |
| Geophila D. Don | | a | | Geophila D. Don | | Rubiaceae |
| Gerontogea Cham. & Schltdl. | Oldenlandia L. | | | Gerontogea Cham. & Schltdl. | Oldenlandia L. | Rubiaceae |
| Gloneria André | Psychotria L. | | | Gloneria André | Psychotria L. | Rubiaceae |
| Gomezia Mutis, orth. var. | Nertera Banks ex Gaertn. | | | Gomezia Mutis, orth. var. | Nertera Banks ex Gaertn. | Rubiaceae |
| Gomosia Lam., orth. var. | Nertera Banks ex Gaertn. | | | Gomosia Lam., orth. var. | Nertera Banks ex Gaertn. | Rubiaceae |
| Gomoza Cothen., orth. var. | Nertera Banks ex Gaertn. | | | Gomoza Cothen., orth. var. | Nertera Banks ex Gaertn. | Rubiaceae |
| Gomozia Mutis ex L. f. | Nertera Banks ex Gaertn. | | | Gomozia Mutis ex L. f. | Nertera Banks ex Gaertn. | Rubiaceae |
| Gomphocalyx Baker | | a | | Gomphocalyx Baker | | Rubiaceae |
| Gonotheca Blume ex DC. | Oldenlandia L. | | | Gonotheca Blume ex DC. | Oldenlandia L. | Rubiaceae |
| Gouldia A. Gray | Kadua Cham. & Schltdl. | | | Gouldia A. Gray | Kadua Cham. & Schltdl. | Rubiaceae |
| Grulhmannia Neck. ex Raf. | Spermacoce L. | | | Grulhmannia Neck. ex Raf. | Spermacoce L. | Rubiaceae |
| Grumilea Gaertn. | Psychotria L. | | | Grumilea Gaertn. | Psychotria L. | Rubiaceae |
| Grundlea Steud., orth. var. | Psychotria L. | | | Grundlea Steud., orth. var. | Psychotria L. | Rubiaceae |
| Grunilea Poir., orth. var. | Psychotria L. | | | Grunilea Poir., orth. var. | Psychotria L. | Rubiaceae |
| Guagnebina Vell. | Manettia Mutis | | | Guagnebina Vell. | Manettia Mutis | Rubiaceae |
| Gutenbergia Walp., orth. var. | Morinda L. | | | Gutenbergia Walp., orth. var. | Morinda L. | Rubiaceae |
| Guttenbergia Zoll. & Moritzi | Gynochthodes Blume | | | Guttenbergia Zoll. & Moritzi | Gynochthodes Blume | Rubiaceae |
| Gynochthodes Blume | | a | | Gynochthodes Blume | | Rubiaceae |
| Gynochtodes Blume, orth. var. | Gynochthodes Blume | | | Gynochtodes Blume, orth. var. | Gynochthodes Blume | Rubiaceae |
| Hamiltonia Roxb. | Spermadictyon Roxb. | | | Hamiltonia Roxb. | Spermadictyon Roxb. | Rubiaceae |
| Hedyotis L. | | a | | Hedyotis L. | | Rubiaceae |
| Hedythyrsus Bremek. | | a | | Hedythyrsus Bremek. | | Rubiaceae |
| Hemidiodia K. Schum. | Diodia Gronov. | | | Hemidiodia K. Schum. | Diodia Gronov. | Rubiaceae |
| Heterophyllaea Hook. f. | | a | | Heterophyllaea Hook. f. | | Rubiaceae |
| Hexasepalum Bartl. ex DC. | | a | | Hexasepalum Bartl. ex DC. | | Rubiaceae |
| Hexodontocarpus Dulac | Sherardia L. | | | Hexodontocarpus Dulac | Sherardia L. | Rubiaceae |
| Heymia Dennst. | Dentella J. R. Forst. & G. Forst. | | | Heymia Dennst. | Dentella J. R. Forst. & G. Forst. | Rubiaceae |
| Hindsia Benth. ex Lindl. | | a | | Hindsia Benth. ex Lindl. | | Rubiaceae |
| Holocarpa Baker | Pentanisia Harv. | | | Holocarpa Baker | Pentanisia Harv. | Rubiaceae |
| Holocarya T. Durand, orth. var. | Pentanisia Harv. | | | Holocarya T. Durand, orth. var. | Pentanisia Harv. | Rubiaceae |
| Holostyla Endl., orth. var. | Coelospermum Blume | | | Holostyla Endl., orth. var. | Coelospermum Blume | Rubiaceae |
| Homaloclados Hook. f. | Faramea Aubl. | | | Homaloclados Hook. f. | Faramea Aubl. | Rubiaceae |
| Hondbessen Adans. | Paederia L. | | | Hondbessen Adans. | Paederia L. | Rubiaceae |
| Houstonia Gronov. | | a | | Houstonia Gronov. | | Rubiaceae |
| Hydnophytum Jack | | a | | Hydnophytum Jack | | Rubiaceae |
| Hydrophylax L. f. | | a | | Hydrophylax L. f. | | Rubiaceae |
| Hymenocoleus Robbr. | | a | | Hymenocoleus Robbr. | | Rubiaceae |
| Hymenopogon Wall. | Neohymenopogon Bennet | | | Hymenopogon Wall. | Neohymenopogon Bennet | Rubiaceae |
| Chaenocarpus Juss. | Spermacoce L. | | | Chaenocarpus Juss. | Spermacoce L. | Rubiaceae |
| Chaetostachydium Airy Shaw | | a | | Chaetostachydium Airy Shaw | | Rubiaceae |
| Chaetostachys Valeton | Chaetostachydium Airy Shaw | | | Chaetostachys Valeton | Chaetostachydium Airy Shaw | Rubiaceae |
| Chamaedaphne Mitch. | Mitchella L. | | | Chamaedaphne Mitch. | Mitchella L. | Rubiaceae |
| Chamaepentas Bremek. | | a | | Chamaepentas Bremek. | | Rubiaceae |
| Chamisme Raf. | Houstonia Gronov. | | | Chamisme Raf. | Houstonia Gronov. | Rubiaceae |
| Chassalia Comm. ex Poir. | | a | | Chassalia Comm. ex Poir. | | Rubiaceae |
| Chazaliella E. M. A. Petit & Verdc. | | a | | Chazaliella E. M. A. Petit & Verdc. | | Rubiaceae |
| Chesnea Scop. | Psychotria L. | | | Chesnea Scop. | Psychotria L. | Rubiaceae |
| Chlorochorion Puff & Robbr. | Pentanisia Harv. | | | Chlorochorion Puff & Robbr. | Pentanisia Harv. | Rubiaceae |
| Chlorostemma (Lange) Fourr. | Asperula L. | | | Chlorostemma (Lange) Fourr. | Asperula L. | Rubiaceae |
| Chytropsia Bremek. | | a | | Chytropsia Bremek. | | Rubiaceae |
| Imantina Hook. f. | Gynochthodes Blume | | | Imantina Hook. f. | Gynochthodes Blume | Rubiaceae |
| Involucrella (Benth. & Hook. f.) Neupane & N. Wikstr. | | a | | Involucrella (Benth. & Hook. f.) Neupane & N. Wikstr. | | Rubiaceae |
| Ipecacuanha Arruda | Psychotria L. | | | Ipecacuanha Arruda | Psychotria L. | Rubiaceae |
| Jontanea Raf. | Coccocypselum P. Browne | | | Jontanea Raf. | Coccocypselum P. Browne | Rubiaceae |
| Jurgensia Raf. | Spermacoce L. | | | Jurgensia Raf. | Spermacoce L. | Rubiaceae |
| Kadua Cham. & Schltdl. | | a | | Kadua Cham. & Schltdl. | | Rubiaceae |
| Karamyschewia Fisch. & C. A. Mey. | Oldenlandia L. | | | Karamyschewia Fisch. & C. A. Mey. | Oldenlandia L. | Rubiaceae |
| Kelloggia Torr. ex Benth. & Hook. f. | | a | | Kelloggia Torr. ex Benth. & Hook. f. | | Rubiaceae |
| Knoxia L. | | a | | Knoxia L. | | Rubiaceae |
| Kohautia Cham. & Schltdl. | | a | | Kohautia Cham. & Schltdl. | | Rubiaceae |
| Lagotis E. Mey. | Carpacoce Sond. | | | Lagotis E. Mey. | Carpacoce Sond. | Rubiaceae |
| Lasianthus Jack | | a | | Lasianthus Jack | | Rubiaceae |
| Lasiostoma Benth. | Hydnophytum Jack | | | Lasiostoma Benth. | Hydnophytum Jack | Rubiaceae |
| Lathraeocarpa Bremek. | | a | | Lathraeocarpa Bremek. | | Rubiaceae |
| Lawia Wight | Mycetia Reinw. | | | Lawia Wight | Mycetia Reinw. | Rubiaceae |
| Laxmannia S. G. Gmel. ex Trin. | Phuopsis (Griseb.) Hook. f. | | | Laxmannia S. G. Gmel. ex Trin. | Phuopsis (Griseb.) Hook. f. | Rubiaceae |
| Lecontea A. Rich. ex DC. | Paederia L. | | | Lecontea A. Rich. ex DC. | Paederia L. | Rubiaceae |
| Leptodermis Wall. | | a | | Leptodermis Wall. | | Rubiaceae |
| Leptopetalum Hook. & Arn. | | a | | Leptopetalum Hook. & Arn. | | Rubiaceae |
| Leptostigma Arn. | | a | | Leptostigma Arn. | | Rubiaceae |
| Leptunis Steven | Asperula L. | | | Leptunis Steven | Asperula L. | Rubiaceae |
| Lerchea L. | | a | | Lerchea L. | | Rubiaceae |
| Lipostoma D. Don | Coccocypselum P. Browne | | | Lipostoma D. Don | Coccocypselum P. Browne | Rubiaceae |
| Lippaya Endl. | Dentella J. R. Forst. & G. Forst. | | | Lippaya Endl. | Dentella J. R. Forst. & G. Forst. | Rubiaceae |
| Listeria Neck. ex Raf. | Oldenlandia L. | | | Listeria Neck. ex Raf. | Oldenlandia L. | Rubiaceae |
| Litosanthes Blume | Lasianthus Jack | | | Litosanthes Blume | Lasianthus Jack | Rubiaceae |
| Lygistum P. Browne | Manettia Mutis | | | Lygistum P. Browne | Manettia Mutis | Rubiaceae |
| Lygodisodea Ruiz & Pav. | Paederia L. | | | Lygodisodea Ruiz & Pav. | Paederia L. | Rubiaceae |
| Macrandria (Wight & Arn.) Meisn. | Hedyotis L. | | | Macrandria (Wight & Arn.) Meisn. | Hedyotis L. | Rubiaceae |
| Macrosiphon Miq. | Hindsia Benth. ex Lindl. | | | Macrosiphon Miq. | Hindsia Benth. ex Lindl. | Rubiaceae |
| Mallostoma H. Karst. | Arcytophyllum Willd. ex Schult. & Schult. f. | | | Mallostoma H. Karst. | Arcytophyllum Willd. ex Schult. & Schult. f. | Rubiaceae |
| Manettia Mutis | | a | | Manettia Mutis | | Rubiaceae |
| Manostachya Bremek. | | a | | Manostachya Bremek. | | Rubiaceae |
| Mapouria Aubl. | Psychotria L. | | | Mapouria Aubl. | Psychotria L. | Rubiaceae |
| Margaris Griseb., nom. inval. | Eumachia DC. | | | Margaris Griseb., nom. inval. | Eumachia DC. | Rubiaceae |
| Margaritopsis C. Wright | Eumachia DC. | | | Margaritopsis C. Wright | Eumachia DC. | Rubiaceae |
| Marquisia A. Rich. ex DC. | Coprosma J. R. Forst. & G. Forst. | | | Marquisia A. Rich. ex DC. | Coprosma J. R. Forst. & G. Forst. | Rubiaceae |
| Martensianthus Borhidi & Lozada-Pérez | | a | | Martensianthus Borhidi & Lozada-Pérez | | Rubiaceae |
| Maschalanthe Blume | Urophyllum Wall. | | | Maschalanthe Blume | Urophyllum Wall. | Rubiaceae |
| Maschalocorymbus Bremek. | | a | | Maschalocorymbus Bremek. | | Rubiaceae |
| Megalopus K. Schum. | Psychotria L. | | | Megalopus K. Schum. | Psychotria L. | Rubiaceae |
| Meionandra Gauba | Valantia L. | | | Meionandra Gauba | Valantia L. | Rubiaceae |
| Melachone Gilli | Amaracarpus Blume | | | Melachone Gilli | Amaracarpus Blume | Rubiaceae |
| Mephitidia Reinw. ex Blume | Lasianthus Jack | | | Mephitidia Reinw. ex Blume | Lasianthus Jack | Rubiaceae |
| Mericarpaea Boiss. | | a | | Mericarpaea Boiss. | | Rubiaceae |
| Mericocalyx Bamps | Otiophora Zucc. | | | Mericocalyx Bamps | Otiophora Zucc. | Rubiaceae |
| Merismostigma S. Moore | Coelospermum Blume | | | Merismostigma S. Moore | Coelospermum Blume | Rubiaceae |
| Metabolos Blume | Hedyotis L. | | | Metabolos Blume | Hedyotis L. | Rubiaceae |
| Mirmecodia Gaudich., orth. var. | Myrmecodia Jack | | | Mirmecodia Gaudich., orth. var. | Myrmecodia Jack | Rubiaceae |
| Mitchella L. | | a | | Mitchella L. | | Rubiaceae |
| Mitracarpus Zucc. | | a | | Mitracarpus Zucc. | | Rubiaceae |
| Mitrasacmopsis Jovet | | a | | Mitrasacmopsis Jovet | | Rubiaceae |
| Mitratheca K. Schum. | Oldenlandia L. | | | Mitratheca K. Schum. | Oldenlandia L. | Rubiaceae |
| Mitreola Boehm. | Ophiorrhiza L. | | | Mitreola Boehm. | Ophiorrhiza L. | Rubiaceae |
| Morinda L. | | a | | Morinda L. | | Rubiaceae |
| Mouretia Pit. | | a | | Mouretia Pit. | | Rubiaceae |
| Mungos Adans. | Ophiorrhiza L. | | | Mungos Adans. | Ophiorrhiza L. | Rubiaceae |
| Mycetia Reinw. | | a | | Mycetia Reinw. | | Rubiaceae |
| Myrmecodia Jack | | a | | Myrmecodia Jack | | Rubiaceae |
| Myrmecoides Elmer, orth. var. | Myrmecodia Jack | | | Myrmecoides Elmer, orth. var. | Myrmecodia Jack | Rubiaceae |
| Myrmedoma Becc. | Myrmephytum Becc. | | | Myrmedoma Becc. | Myrmephytum Becc. | Rubiaceae |
| Myrmephytum Becc. | | a | | Myrmephytum Becc. | | Rubiaceae |
| Myrstiphylla Raf. | Psychotria L. | | | Myrstiphylla Raf. | Psychotria L. | Rubiaceae |
| Myrstiphyllum P. Browne | Psychotria L. | | | Myrstiphyllum P. Browne | Psychotria L. | Rubiaceae |
| Nacibaea Poir., orth. var. | Manettia Mutis | | | Nacibaea Poir., orth. var. | Manettia Mutis | Rubiaceae |
| Nacibea Aubl. | Manettia Mutis | | | Nacibea Aubl. | Manettia Mutis | Rubiaceae |
| Naletonia Bremek. | | a | | Naletonia Bremek. | | Rubiaceae |
| Neleixa Raf. | Faramea Aubl. | | | Neleixa Raf. | Faramea Aubl. | Rubiaceae |
| Nemostylis Steven | Phuopsis (Griseb.) Hook. f. | | | Nemostylis Steven | Phuopsis (Griseb.) Hook. f. | Rubiaceae |
| Nenax Gaertn. | | a | | Nenax Gaertn. | | Rubiaceae |
| Neobaumannia Hutch. & Dalziel | Knoxia L. | | | Neobaumannia Hutch. & Dalziel | Knoxia L. | Rubiaceae |
| Neohymenopogon Bennet | | a | | Neohymenopogon Bennet | | Rubiaceae |
| Neomartensia Borhidi & Lozada-Pérez | Martensianthus Borhidi & Lozada-Pérez | | | Neomartensia Borhidi & Lozada-Pérez | Martensianthus Borhidi & Lozada-Pérez | Rubiaceae |
| Neopentanisia Verdc. | Pentanisia Harv. | | | Neopentanisia Verdc. | Pentanisia Harv. | Rubiaceae |
| Neosabicea Wernham | Manettia Mutis | | | Neosabicea Wernham | Manettia Mutis | Rubiaceae |
| Neoschimpera Hemsl. | Psychotria L. | | | Neoschimpera Hemsl. | Psychotria L. | Rubiaceae |
| Nertera Banks ex Gaertn. | | a | | Nertera Banks ex Gaertn. | | Rubiaceae |
| Nesohedyotis (Hook. f.) Bremek. | | a | | Nesohedyotis (Hook. f.) Bremek. | | Rubiaceae |
| Nettlera Raf. | Psychotria L. | | | Nettlera Raf. | Psychotria L. | Rubiaceae |
| Neurocalyx Hook. | | a | | Neurocalyx Hook. | | Rubiaceae |
| Neurocarpaea R. Br., nom. inval. | Pentas Benth. | | | Neurocarpaea R. Br., nom. inval. | Pentas Benth. | Rubiaceae |
| Nobula Adans. | Phyllis L. | | | Nobula Adans. | Phyllis L. | Rubiaceae |
| Nonatelia Kuntze | Lasianthus Jack | | | Nonatelia Kuntze | Lasianthus Jack | Rubiaceae |
| Nonatelia Aubl. | | a | | Nonatelia Aubl. | | Rubiaceae |
| Normandia Hook. f. | | a | | Normandia Hook. f. | | Rubiaceae |
| Notodontia Pierre ex Pit. | Ophiorrhiza L. | | | Notodontia Pierre ex Pit. | Ophiorrhiza L. | Rubiaceae |
| Notopleura (Benth.) Bremek. | | a | | Notopleura (Benth.) Bremek. | | Rubiaceae |
| Novatilia Wight, orth. var. | Palicourea Aubl. | | | Novatilia Wight, orth. var. | Palicourea Aubl. | Rubiaceae |
| Octavia DC. | Lasianthus Jack | | | Octavia DC. | Lasianthus Jack | Rubiaceae |
| Octodon Thonn. | Spermacoce L. | | | Octodon Thonn. | Spermacoce L. | Rubiaceae |
| Octomeria Pfeiff., orth. var. | Otomeria Benth. | | | Octomeria Pfeiff., orth. var. | Otomeria Benth. | Rubiaceae |
| Oldenlandia L. | | a | | Oldenlandia L. | | Rubiaceae |
| Oldenlandiopsis Terrell & W. H. Lewis | | a | | Oldenlandiopsis Terrell & W. H. Lewis | | Rubiaceae |
| Olostyla DC. | Coelospermum Blume | | | Olostyla DC. | Coelospermum Blume | Rubiaceae |
| Omalocaldos Hook. f., orth. var. | Faramea Aubl. | | | Omalocaldos Hook. f., orth. var. | Faramea Aubl. | Rubiaceae |
| Ophiorrhiza L. | | a | | Ophiorrhiza L. | | Rubiaceae |
| Oreocaryon Kuntze ex K. Schum. | Cruckshanksia Hook. & Arn. | | | Oreocaryon Kuntze ex K. Schum. | Cruckshanksia Hook. & Arn. | Rubiaceae |
| Oreopolus Schltdl. | | a | | Oreopolus Schltdl. | | Rubiaceae |
| Oribasia Schreb. | Palicourea Aubl. | | | Oribasia Schreb. | Palicourea Aubl. | Rubiaceae |
| Orthostemma Wall. ex Voigt, nom. inval. | Pentas Benth. | | | Orthostemma Wall. ex Voigt, nom. inval. | Pentas Benth. | Rubiaceae |
| Otiophora Zucc. | | a | | Otiophora Zucc. | | Rubiaceae |
| Otocephalus Chiov. | Pentanisia Harv. | | | Otocephalus Chiov. | Pentanisia Harv. | Rubiaceae |
| Otomeria Benth. | | a | | Otomeria Benth. | | Rubiaceae |
| Oxyspermum Eckl. & Zeyh. | Galopina Thunb. | | | Oxyspermum Eckl. & Zeyh. | Galopina Thunb. | Rubiaceae |
| Paederia L. | | a | | Paederia L. | | Rubiaceae |
| Paedicalyx Pierre ex Pit. | Xanthophytum Reinw. ex Blume | | | Paedicalyx Pierre ex Pit. | Xanthophytum Reinw. ex Blume | Rubiaceae |
| Pagamea Aubl. | | a | | Pagamea Aubl. | | Rubiaceae |
| Pachysanthus C. Presl | Rudgea Salisb. | | | Pachysanthus C. Presl | Rudgea Salisb. | Rubiaceae |
| Palicourea Aubl. | | a | | Palicourea Aubl. | | Rubiaceae |
| Panetos Raf. | Houstonia Gronov. | | | Panetos Raf. | Houstonia Gronov. | Rubiaceae |
| Paragophyton K. Schum. | Spermacoce L. | | | Paragophyton K. Schum. | Spermacoce L. | Rubiaceae |
| Paraknoxia Bremek. | Pentanisia Harv. | | | Paraknoxia Bremek. | Pentanisia Harv. | Rubiaceae |
| Paranotis Pedley ex K. L. Gibbons | | a | | Paranotis Pedley ex K. L. Gibbons | | Rubiaceae |
| Parapentas Bremek. | | a | | Parapentas Bremek. | | Rubiaceae |
| Paratriaina Bremek. | Triainolepis Hook. f. | | | Paratriaina Bremek. | Triainolepis Hook. f. | Rubiaceae |
| Paravinia Hassk., orth. var. | Praravinia Korth. | | | Paravinia Hassk., orth. var. | Praravinia Korth. | Rubiaceae |
| Pauridiantha Hook. f. | | a | | Pauridiantha Hook. f. | | Rubiaceae |
| Payera Baill. | | a | | Payera Baill. | | Rubiaceae |
| Peckeya Raf., orth. var. | Coussarea Aubl. | | | Peckeya Raf., orth. var. | Coussarea Aubl. | Rubiaceae |
| Pegamea Vitman, orth. var. | Pagamea Aubl. | | | Pegamea Vitman, orth. var. | Pagamea Aubl. | Rubiaceae |
| Pecheya Scop. | Coussarea Aubl. | | | Pecheya Scop. | Coussarea Aubl. | Rubiaceae |
| Pelaphia Banks & Sol., nom. inval. | Coprosma J. R. Forst. & G. Forst. | | | Pelaphia Banks & Sol., nom. inval. | Coprosma J. R. Forst. & G. Forst. | Rubiaceae |
| Pentacarpaea Hiern | Pentanisia Harv. | | | Pentacarpaea Hiern | Pentanisia Harv. | Rubiaceae |
| Pentacarpus Post & Kuntze, orth. var. | Pentanisia Harv. | | | Pentacarpus Post & Kuntze, orth. var. | Pentanisia Harv. | Rubiaceae |
| Pentanisia Harv. | | a | | Pentanisia Harv. | | Rubiaceae |
| Pentanopsis Rendle | | a | | Pentanopsis Rendle | | Rubiaceae |
| Pentas Benth. | | a | | Pentas Benth. | | Rubiaceae |
| Pentodon Hochst. | | a | | Pentodon Hochst. | | Rubiaceae |
| Peratanthe Urb. | Nertera Banks ex Gaertn. | | | Peratanthe Urb. | Nertera Banks ex Gaertn. | Rubiaceae |
| Perdicesca Prov. | Mitchella L. | | | Perdicesca Prov. | Mitchella L. | Rubiaceae |
| Petagomoa Bremek. | | a | | Petagomoa Bremek. | | Rubiaceae |
| Phialiphora Groeninckx | | a | | Phialiphora Groeninckx | | Rubiaceae |
| Phuopsis (Griseb.) Hook. f. | | a | | Phuopsis (Griseb.) Hook. f. | | Rubiaceae |
| Phyllis L. | | a | | Phyllis L. | | Rubiaceae |
| Phyllopentas (Verdc.) Kårehed & B. Bremer | | a | | Phyllopentas (Verdc.) Kårehed & B. Bremer | | Rubiaceae |
| Phylohydrax Puff | | a | | Phylohydrax Puff | | Rubiaceae |
| Pittierothamnus Steyerm. | Amphidasya Standl. | | | Pittierothamnus Steyerm. | Amphidasya Standl. | Rubiaceae |
| Placodium Hook. f. | Plocama Aiton | | | Placodium Hook. f. | Plocama Aiton | Rubiaceae |
| Placoma J. F. Gmel., orth. var. | Plocama Aiton | | | Placoma J. F. Gmel., orth. var. | Plocama Aiton | Rubiaceae |
| Placopoda Balf. f. | Dirichletia Klotzsch | | | Placopoda Balf. f. | Dirichletia Klotzsch | Rubiaceae |
| Planaltina R. M. Salas & E. L. Cabral | | a | | Planaltina R. M. Salas & E. L. Cabral | | Rubiaceae |
| Plethyrsis Raf. | Richardia L. | | | Plethyrsis Raf. | Richardia L. | Rubiaceae |
| Pleureia Raf. | Psychotria L. | | | Pleureia Raf. | Psychotria L. | Rubiaceae |
| Plocama Aiton | | a | | Plocama Aiton | | Rubiaceae |
| Poederiopsis Rusby | Manettia Mutis | | | Poederiopsis Rusby | Manettia Mutis | Rubiaceae |
| Pogonanthus Montrouz. | Gynochthodes Blume | | | Pogonanthus Montrouz. | Gynochthodes Blume | Rubiaceae |
| Pogonolobus F. Muell. | Coelospermum Blume | | | Pogonolobus F. Muell. | Coelospermum Blume | Rubiaceae |
| Poiretia J. F. Gmel. | Houstonia Gronov. | | | Poiretia J. F. Gmel. | Houstonia Gronov. | Rubiaceae |
| Polycycliska Ridl. | Lerchea L. | | | Polycycliska Ridl. | Lerchea L. | Rubiaceae |
| Polyozus Lour. | Psychotria L. | | | Polyozus Lour. | Psychotria L. | Rubiaceae |
| Pomangium Reinw. | Argostemma Wall. | | | Pomangium Reinw. | Argostemma Wall. | Rubiaceae |
| Pomax Sol. ex DC. | | a | | Pomax Sol. ex DC. | | Rubiaceae |
| Potima R. Hedw. | Faramea Aubl. | | | Potima R. Hedw. | Faramea Aubl. | Rubiaceae |
| Praravinia Korth. | | a | | Praravinia Korth. | | Rubiaceae |
| Pravinaria Bremek. | | a | | Pravinaria Bremek. | | Rubiaceae |
| Princea Dubard & Dop | Triainolepis Hook. f. | | | Princea Dubard & Dop | Triainolepis Hook. f. | Rubiaceae |
| Prismatomeris Thwaites | | a | | Prismatomeris Thwaites | | Rubiaceae |
| Pristidia Thwaites | Gaertnera Lam. | | | Pristidia Thwaites | Gaertnera Lam. | Rubiaceae |
| Pseudogalium L. E Yang et al. | | a | | Pseudogalium L. E Yang et al. | | Rubiaceae |
| Pseudorachicallis Post & Kuntze, orth. var. | Arcytophyllum Willd. ex Schult. & Schult. f. | | | Pseudorachicallis Post & Kuntze, orth. var. | Arcytophyllum Willd. ex Schult. & Schult. f. | Rubiaceae |
| Pseudorhachicallis Hook. f. | Arcytophyllum Willd. ex Schult. & Schult. f. | | | Pseudorhachicallis Hook. f. | Arcytophyllum Willd. ex Schult. & Schult. f. | Rubiaceae |
| Psychotria L. | | a | | Psychotria L. | | Rubiaceae |
| Psychotrophum P. Browne | Psychotria L. | | | Psychotrophum P. Browne | Psychotria L. | Rubiaceae |
| Psyllocarpus Mart. & Zucc. | | a | | Psyllocarpus Mart. & Zucc. | | Rubiaceae |
| Pterostephus C. Presl | Spermacoce L. | | | Pterostephus C. Presl | Spermacoce L. | Rubiaceae |
| Putoria Pers. | | a | | Putoria Pers. | | Rubiaceae |
| Raritebe Wernham | | a | | Raritebe Wernham | | Rubiaceae |
| Readea Gillespie | | a | | Readea Gillespie | | Rubiaceae |
| Relbunium (Endl.) Hook. f. | Galium L. | | | Relbunium (Endl.) Hook. f. | Galium L. | Rubiaceae |
| Reussia Dennst., nom. inval. | Paederia L. | | | Reussia Dennst., nom. inval. | Paederia L. | Rubiaceae |
| Rhodopentas Kårehed & B. Bremer | | a | | Rhodopentas Kårehed & B. Bremer | | Rubiaceae |
| Rhodostoma Scheidw. | Palicourea Aubl. | | | Rhodostoma Scheidw. | Palicourea Aubl. | Rubiaceae |
| Ricardia Adans., orth. var. | Richardia L. | | | Ricardia Adans., orth. var. | Richardia L. | Rubiaceae |
| Richardia L. | | a | | Richardia L. | | Rubiaceae |
| Richardsonia Kunth | Richardia L. | | | Richardsonia Kunth | Richardia L. | Rubiaceae |
| Rojoc Adans. | Morinda L. | | | Rojoc Adans. | Morinda L. | Rubiaceae |
| Ronabea Aubl. | | a | | Ronabea Aubl. | | Rubiaceae |
| Ronabia St.-Lag., orth. var. | Psychotria L. | | | Ronabia St.-Lag., orth. var. | Psychotria L. | Rubiaceae |
| Rotheria Meyen | Cruckshanksia Hook. & Arn. | | | Rotheria Meyen | Cruckshanksia Hook. & Arn. | Rubiaceae |
| Rubeola Hill | Sherardia L. | | | Rubeola Hill | Sherardia L. | Rubiaceae |
| Rubeola Mill. | Crucianella L. | | | Rubeola Mill. | Crucianella L. | Rubiaceae |
| Rubia L. | | a | | Rubia L. | | Rubiaceae |
| Rudgea Salisb. | | a | | Rudgea Salisb. | | Rubiaceae |
| Saldinia A. Rich. ex DC. | | a | | Saldinia A. Rich. ex DC. | | Rubiaceae |
| Santia Wight & Arn. | Lasianthus Jack | | | Santia Wight & Arn. | Lasianthus Jack | Rubiaceae |
| Saprosma Blume | | a | | Saprosma Blume | | Rubiaceae |
| Sarcopygme Setch. & Christoph. | Morinda L. | | | Sarcopygme Setch. & Christoph. | Morinda L. | Rubiaceae |
| Sarissus Gaertn. | Hydrophylax L. f. | | | Sarissus Gaertn. | Hydrophylax L. f. | Rubiaceae |
| Scandentia E. L. Cabral & Bacigalupo, nom. inval. | Denscantia E. L. Cabral & Bacigalupo | | | Scandentia E. L. Cabral & Bacigalupo, nom. inval. | Denscantia E. L. Cabral & Bacigalupo | Rubiaceae |
| Sclerococcus Bartl., nom. inval. | Hedyotis L. | | | Sclerococcus Bartl., nom. inval. | Hedyotis L. | Rubiaceae |
| Scleromitrion (Wight & Arn.) Meisn. | | a | | Scleromitrion (Wight & Arn.) Meisn. | | Rubiaceae |
| Serissa Comm. ex Juss. | | a | | Serissa Comm. ex Juss. | | Rubiaceae |
| Seychellea Razafim. et al. | | a | | Seychellea Razafim. et al. | | Rubiaceae |
| Sherardia L. | | a | | Sherardia L. | | Rubiaceae |
| Schiedea Bartl., nom. inval. | Richardia L. | | | Schiedea Bartl., nom. inval. | Richardia L. | Rubiaceae |
| Schismatoclada Baker | | a | | Schismatoclada Baker | | Rubiaceae |
| Schizangium Bartl. ex DC. | Mitracarpus Zucc. | | | Schizangium Bartl. ex DC. | Mitracarpus Zucc. | Rubiaceae |
| Schizocolea Bremek. | | a | | Schizocolea Bremek. | | Rubiaceae |
| Schradera Vahl | | a | | Schradera Vahl | | Rubiaceae |
| Sicelium P. Browne | Coccocypselum P. Browne | | | Sicelium P. Browne | Coccocypselum P. Browne | Rubiaceae |
| Siderobombyx Bremek. | Xanthophytum Reinw. ex Blume | | | Siderobombyx Bremek. | Xanthophytum Reinw. ex Blume | Rubiaceae |
| Siphomeris Bojer | Paederia L. | | | Siphomeris Bojer | Paederia L. | Rubiaceae |
| Siphonandrium K. Schum. | | a | | Siphonandrium K. Schum. | | Rubiaceae |
| Spermacoce L. | | a | | Spermacoce L. | | Rubiaceae |
| Spermacoceodes Kuntze | Spermacoce L. | | | Spermacoceodes Kuntze | Spermacoce L. | Rubiaceae |
| Spermacon Raf. | Spermacoce L. | | | Spermacon Raf. | Spermacoce L. | Rubiaceae |
| Spermadictyon Roxb. | | a | | Spermadictyon Roxb. | | Rubiaceae |
| Sphaerophora Blume | Gynochthodes Blume | | | Sphaerophora Blume | Gynochthodes Blume | Rubiaceae |
| Squamellaria Becc. | | a | | Squamellaria Becc. | | Rubiaceae |
| Staurospermum Thonn. | Mitracarpus Zucc. | | | Staurospermum Thonn. | Mitracarpus Zucc. | Rubiaceae |
| Stellix Noronha | Psychotria L. | | | Stellix Noronha | Psychotria L. | Rubiaceae |
| Stelmanis Raf., nom. inval. | Hedyotis L. | | | Stelmanis Raf., nom. inval. | Hedyotis L. | Rubiaceae |
| Stelmotis Raf. | Hedyotis L. | | | Stelmotis Raf. | Hedyotis L. | Rubiaceae |
| Stenaria (Raf.) Terrell | | a | | Stenaria (Raf.) Terrell | | Rubiaceae |
| Stenotis Terrell | | a | | Stenotis Terrell | | Rubiaceae |
| Stephanium Schreb. | Palicourea Aubl. | | | Stephanium Schreb. | Palicourea Aubl. | Rubiaceae |
| Stigmanthus Lour. | Gynochthodes Blume | | | Stigmanthus Lour. | Gynochthodes Blume | Rubiaceae |
| Stigmatanthus Schult. | Morinda L. | | | Stigmatanthus Schult. | Morinda L. | Rubiaceae |
| Straussia A. Gray | Psychotria L. | | | Straussia A. Gray | Psychotria L. | Rubiaceae |
| Streblosa Korth. | | a | | Streblosa Korth. | | Rubiaceae |
| Strempelia A. Rich. ex DC. | | a | | Strempelia A. Rich. ex DC. | | Rubiaceae |
| Sulzeria Roem. & Schult., nom. inval. | Faramea Aubl. | | | Sulzeria Roem. & Schult., nom. inval. | Faramea Aubl. | Rubiaceae |
| Suteria DC. | Psychotria L. | | | Suteria DC. | Psychotria L. | Rubiaceae |
| Sykesia Arn. | Gaertnera Lam. | | | Sykesia Arn. | Gaertnera Lam. | Rubiaceae |
| Symphyllarion Gagnep. | Hedyotis L. | | | Symphyllarion Gagnep. | Hedyotis L. | Rubiaceae |
| Synaptantha Hook. f. | | a | | Synaptantha Hook. f. | | Rubiaceae |
| Tapinopentas Bremek. | Otomeria Benth. | | | Tapinopentas Bremek. | Otomeria Benth. | Rubiaceae |
| Tapogomea Aubl. | Psychotria L. | | | Tapogomea Aubl. | Psychotria L. | Rubiaceae |
| Taramea Raf., orth. var. | Faramea Aubl. | | | Taramea Raf., orth. var. | Faramea Aubl. | Rubiaceae |
| Tardavel Adans. | Spermacoce L. | | | Tardavel Adans. | Spermacoce L. | Rubiaceae |
| Teinosolen Hook. f. | Heterophyllaea Hook. f. | | | Teinosolen Hook. f. | Heterophyllaea Hook. f. | Rubiaceae |
| Tessiera DC. | Spermacoce L. | | | Tessiera DC. | Spermacoce L. | Rubiaceae |
| Tetralopha Hook. f. | Gynochthodes Blume | | | Tetralopha Hook. f. | Gynochthodes Blume | Rubiaceae |
| Tetramerium C. F. Gaertn. | Faramea Aubl. | | | Tetramerium C. F. Gaertn. | Faramea Aubl. | Rubiaceae |
| Tetraplasia Rehder | Damnacanthus C. F. Gaertn. | | | Tetraplasia Rehder | Damnacanthus C. F. Gaertn. | Rubiaceae |
| Thamnoldenlandia Groeninckx | | a | | Thamnoldenlandia Groeninckx | | Rubiaceae |
| Thecagonum Babu | Oldenlandia L. | | | Thecagonum Babu | Oldenlandia L. | Rubiaceae |
| Thecorchus Bremek. | Oldenlandia L. | | | Thecorchus Bremek. | Oldenlandia L. | Rubiaceae |
| Theligonum L. | | a | | Theligonum L. | | Rubiaceae |
| Theyodis A. Rich. | Oldenlandia L. | | | Theyodis A. Rich. | Oldenlandia L. | Rubiaceae |
| Thiersia Baill. | Faramea Aubl. | | | Thiersia Baill. | Faramea Aubl. | Rubiaceae |
| Thyridocalyx Bremek. | Triainolepis Hook. f. | | | Thyridocalyx Bremek. | Triainolepis Hook. f. | Rubiaceae |
| Tontanea Aubl. | Coccocypselum P. Browne | | | Tontanea Aubl. | Coccocypselum P. Browne | Rubiaceae |
| Trevirania Heynh. | Psychotria L. | | | Trevirania Heynh. | Psychotria L. | Rubiaceae |
| Triainolepis Hook. f. | | a | | Triainolepis Hook. f. | | Rubiaceae |
| Trichogalium Fourr. | Galium L. | | | Trichogalium Fourr. | Galium L. | Rubiaceae |
| Trichostachys Hook. f. | | a | | Trichostachys Hook. f. | | Rubiaceae |
| Triodon DC. | Diodia Gronov. | | | Triodon DC. | Diodia Gronov. | Rubiaceae |
| Trisciadia Hook. f. | Coelospermum Blume | | | Trisciadia Hook. f. | Coelospermum Blume | Rubiaceae |
| Uncariopsis H. Karst. | Schradera Vahl | | | Uncariopsis H. Karst. | Schradera Vahl | Rubiaceae |
| Uragoga L. | Psychotria L. | | | Uragoga L. | Psychotria L. | Rubiaceae |
| Urceolaria Willd. ex Cothen. | Schradera Vahl | | | Urceolaria Willd. ex Cothen. | Schradera Vahl | Rubiaceae |
| Urophyllum Wall. | | a | | Urophyllum Wall. | | Rubiaceae |
| Vaillantia Hoffm., orth. var. | Valantia L. | | | Vaillantia Hoffm., orth. var. | Valantia L. | Rubiaceae |
| Valantia L. | | a | | Valantia L. | | Rubiaceae |
| Vanessa Raf. | Manettia Mutis | | | Vanessa Raf. | Manettia Mutis | Rubiaceae |
| Vignaldia A. Rich. | Pentas Benth. | | | Vignaldia A. Rich. | Pentas Benth. | Rubiaceae |
| Vignaudia Schweinf., orth. var. | Pentas Benth. | | | Vignaudia Schweinf., orth. var. | Pentas Benth. | Rubiaceae |
| Viscoides Jacq. | Psychotria L. | | | Viscoides Jacq. | Psychotria L. | Rubiaceae |
| Vissadali Adans. | Knoxia L. | | | Vissadali Adans. | Knoxia L. | Rubiaceae |
| Wallichia Reinw. ex Blume | Urophyllum Wall. | | | Wallichia Reinw. ex Blume | Urophyllum Wall. | Rubiaceae |
| Wiegmannia Meyen | Kadua Cham. & Schltdl. | | | Wiegmannia Meyen | Kadua Cham. & Schltdl. | Rubiaceae |
| Wigmannia Walp., orth. var. | Hedyotis L. | | | Wigmannia Walp., orth. var. | Hedyotis L. | Rubiaceae |
| Williamsia Merr. | Praravinia Korth. | | | Williamsia Merr. | Praravinia Korth. | Rubiaceae |
| Xanthophytopsis Pit. | Xanthophytum Reinw. ex Blume | | | Xanthophytopsis Pit. | Xanthophytum Reinw. ex Blume | Rubiaceae |
| Xanthophytum Reinw. ex Blume | | a | | Xanthophytum Reinw. ex Blume | | Rubiaceae |
| Zeuxanthe Ridl. | Prismatomeris Thwaites | | | Zeuxanthe Ridl. | Prismatomeris Thwaites | Rubiaceae |
| Zwaardekronia Korth. | Psychotria L. | | | Zwaardekronia Korth. | Psychotria L. | Rubiaceae |