''Gaertnera'' is a genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the family

Rubiaceae Rubiaceae () is a family (biology), family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with Petiole ( ...

. There are at least 85 species distributed across the

Old World The "Old World" () is a term for Afro-Eurasia coined by Europeans after 1493, when they became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia in the Eastern Hemisphere, previously ...

tropics from Africa to Asia.''Gaertnera''.
Selected Rubiaceae Tribes and Genera. Tropicos. Plants in this genus are variable in appearance and biology. Most all are regional endemics, plants limited to a small geographical area and narrowly adapted to local conditions.Malcomber, S. T., & Taylor, C. M. (2009)
A systematic revision of ''Gaertnera'' (Rubiaceae, Gaertnereae) 1.
''Annals of the Missouri Botanical Garden'', 96(4), 575-671. Most grow in moist forest habitat. These are generally woody plants with clusters of white, pink, or red flowers and purple-black fruits. Some species are distylous, with plants having one of two flower morphs. Other species are

dioecious Dioecy ( ; ; adj. dioecious, ) is a characteristic of certain species that have distinct unisexual individuals, each producing either male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is ...

, with plants having either male or female flowers. Dioecious species are generally found in

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

Species

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

accepted the following species: *'' Gaertnera alata'' Bremek. ex Malcomber & A.P.Davis *'' Gaertnera alstonii'' Malcomber *'' Gaertnera aphanodioica'' Malcomber *'' Gaertnera arenaria'' Baker *'' Gaertnera arenarioides'' C.M.Taylor *'' Gaertnera aurea'' Malcomber *'' Gaertnera bambusifolia'' Malcomber & A.P.Davis *'' Gaertnera belumutensis'' Malcomber *'' Gaertnera bieleri'' (De Wild.) E.M.A.Petit *'' Gaertnera breviflora'' C.M.Taylor *'' Gaertnera brevipedicellata'' Malcomber & A.P.Davis *'' Gaertnera calycina'' Bojer *'' Gaertnera capitulata'' Malcomber *'' Gaertnera cardiocarpa'' Boivin ex Baill. *'' Gaertnera cooperi'' Hutch. & M.B.Moss *'' Gaertnera crassiflora'' Bojer *'' Gaertnera cuneifolia'' Bojer *'' Gaertnera darcyana'' Malcomber & A.P.Davis *'' Gaertnera divaricata'' (Thwaites) Thwaites *'' Gaertnera diversifolia'' Ridl. *'' Gaertnera drakeana'' Aug.DC. *'' Gaertnera edentata'' Bojer *'' Gaertnera eketensis'' Wernham *'' Gaertnera fractiflexa'' Beusekom *'' Gaertnera furcellata'' (Baill. ex Vatke) Malcomber & A.P.Davis *'' Gaertnera gabonensis'' Malcomber * ''Gaertnera'' × ''gardneri'' Thwaites *'' Gaertnera globigera'' Beusekom *'' Gaertnera grisea'' Hook.f. ex C.B.Clarke *'' Gaertnera guillotii'' Hochr. *'' Gaertnera hirsuta'' C.M.Taylor *'' Gaertnera hirtiflora'' Verdc. *'' Gaertnera hispida'' Aug.DC. *'' Gaertnera humblotii'' Drake *'' Gaertnera ianthina'' Malcomber *'' Gaertnera inflexa'' Boivin ex Baill. *'' Gaertnera junghuhniana'' Miq. *'' Gaertnera kochummenii'' Malcomber *'' Gaertnera laevis'' C.M.Taylor *'' Gaertnera letouzeyi'' Malcomber *'' Gaertnera leucothyrsa'' (K.Krause) E.M.A.Petit *'' Gaertnera liberiensis'' E.M.A.Petit *'' Gaertnera littoralis'' C.M.Taylor *'' Gaertnera longifolia'' Bojer *'' Gaertnera longivaginalis'' (Schweinf. ex Hiern) E.M.A.Petit *'' Gaertnera lowryi'' Malcomber *'' Gaertnera luteocarpa'' Jongkind *'' Gaertnera macrobotrys'' Baker *'' Gaertnera macrostipula'' Baker *'' Gaertnera madagascariensis'' (Hook.f.) Malcomber & A.P.Davis *'' Gaertnera malcomberiana'' C.M.Taylor *'' Gaertnera masoalana'' C.M.Taylor *'' Gaertnera microphylla'' Capuron ex Malcomber & A.P.Davis *'' Gaertnera monstruosa'' Malcomber *'' Gaertnera monticola'' Jongkind *'' Gaertnera nitida'' C.M.Taylor *'' Gaertnera obesa'' Hook.f. ex C.B.Clarke *'' Gaertnera oblanceolata'' King & Gamble *'' Gaertnera obovata'' Baker *'' Gaertnera paniculata'' Benth. *'' Gaertnera pauciflora'' Malcomber & A.P.Davis *'' Gaertnera pedunculata'' Jongkind *'' Gaertnera pendula'' Bojer *'' Gaertnera phanerophlebia'' Baker *'' Gaertnera phyllosepala'' Baker *'' Gaertnera phyllostachya'' Baker *'' Gaertnera psychotrioides'' (DC.) Baker *'' Gaertnera rakotovaoana'' C.M.Taylor *'' Gaertnera ramosa'' Ridl. *'' Gaertnera raphaelii'' Malcomber *'' Gaertnera razakamalalana'' C.M.Taylor *'' Gaertnera robusta'' C.M.Taylor *'' Gaertnera rosea'' Thwaites ex Benth. *'' Gaertnera rotundifolia'' Bojer *'' Gaertnera rubra'' C.M.Taylor *'' Gaertnera schatzii'' Malcomber *'' Gaertnera schizocalyx'' Bremek. *'' Gaertnera sclerophylla'' C.M.Taylor *'' Gaertnera spicata'' K.Schum. *'' Gaertnera sralensis'' (Pierre ex Pit.) Kerr *'' Gaertnera stictophylla'' (Hiern) E.M.A.Petit *'' Gaertnera ternifolia'' Thwaites *'' Gaertnera trachystyla'' (Hiern) E.M.A.Petit *'' Gaertnera vaginans'' (DC.) Merr. *'' Gaertnera vaginata'' Poir. *'' Gaertnera velutina'' C.M.Taylor *'' Gaertnera vernicosa'' C.M.Taylor *'' Gaertnera viminea'' Hook.f. ex C.B.Clarke *'' Gaertnera walkeri'' (Arn.) Blume *'' Gaertnera xerophila'' C.M.Taylor

References

Rubiaceae genera Taxonomy articles created by Polbot {{Rubioideae-stub