| Ouratea acicularis R.G. Chacon & Kik. Yamam. | Unresolved |  | TRO | 
	
		| Ouratea acuminata (DC.) Engl. | Accepted |  | TRO | 
	
		| Ouratea acunae Borhidi | Unresolved |  | WCSP (in review) | 
	
		| Ouratea acuta (Tiegh.) Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea acutissima Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea affinis (Hook. f.) Engl. | Synonym |  | TRO | 
	
		| Ouratea affinis Britton | Synonym |  | TRO | 
	
		| Ouratea afzelii Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea agrophylla (Tiegh.) Urb. | Synonym |  | TRO | 
	
		| Ouratea alternifolia (A. Rich.) M. Gómez | Accepted |  | TRO | 
	
		| Ouratea ambacensis Hutch. & Dalziel | Unresolved |  | WCSP (in review) | 
	
		| Ouratea amplectens (Stapf) Engl. | Synonym |  | TRO | 
	
		| Ouratea amplexicaulis (O. Hoffm.) Baill. | Accepted |  | TRO | 
	
		| Ouratea amplifolia Sleumer | Accepted |  | TRO | 
	
		| Ouratea anceps (Baker) Baill. | Synonym |  | TRO | 
	
		| Ouratea andongensis (Hiern) Exell | Accepted |  | WCSP (in review) | 
	
		| Ouratea angulata Tiegh. | Accepted |  | TRO | 
	
		| Ouratea angulata (DC.) Baill. | Synonym |  | TRO | 
	
		| Ouratea angusta Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea angustifolia Tiegh. | Synonym |  | TRO | 
	
		| Ouratea apurensis Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea aquatica (Kunth) Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea arbobrevicalyx Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea arcta Craib | Unresolved |  | WCSP (in review) | 
	
		| Ouratea arnoldiana De Wild. & T. Durand | Synonym |  | TRO | 
	
		| Ouratea aromatica J.F. Macbr. | Accepted |  | TRO | 
	
		| Ouratea articulata Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea ashantiensis De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea asisae Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea attenuata Tiegh. | Accepted |  | WCSP (in review) | 
	
		| Ouratea australis Ule | Unresolved |  | WCSP (in review) | 
	
		| Ouratea axillaris (Oliv.) Engl. | Synonym |  | TRO | 
	
		| Ouratea ayacuchae Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea bahiensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea barrae (Tiegh.) Lasser | Unresolved |  | WCSP (in review) | 
	
		| Ouratea barteri Hutch. & Dalziel | Unresolved |  | WCSP (in review) | 
	
		| Ouratea batesii De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea beccariana Bartell. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea bella Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea bella Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea bipartita Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea blanchetiana Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea boliviana Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea borneensis Bartell. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea brachybotrys Gilg | Synonym |  | TRO | 
	
		| Ouratea bracteata Engl. | Synonym |  | TRO | 
	
		| Ouratea bracteatopedunculata De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea bracteo-paniculata De Wild. | Synonym |  | TRO | 
	
		| Ouratea bracteolata Gilg | Synonym |  | TRO | 
	
		| Ouratea brevicalyx Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea brevipedicellata Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea brevipes (Tiegh.) Sastre | Accepted |  | TRO | 
	
		| Ouratea brunneopurpurea Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea buchholzii Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea buchneri Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea bukobensis Gilg | Synonym |  | TRO | 
	
		| Ouratea cabrae Gilg | Synonym |  | TRO | 
	
		| Ouratea calantha Gilg | Accepted |  | WCSP (in review) | 
	
		| Ouratea calophylla Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea calophylloides Hutch. & Dalziel | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cameronii Hutch. & Dalziel | Unresolved |  | WCSP (in review) | 
	
		| Ouratea campos-portoi Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea candelabra Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea candollei (Planch.) Tiegh. | Accepted |  | TRO | 
	
		| Ouratea caracasana (Planch.) Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea cardiosperma (DC.) Engl. | Accepted |  | TRO | 
	
		| Ouratea cassinifolia (DC.) Engl. | Synonym |  | TRO | 
	
		| Ouratea castaneifolia (DC.) Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea cataractarum Sandwith | Unresolved |  | WCSP (in review) | 
	
		| Ouratea caudata Engl. | Synonym |  | TRO | 
	
		| Ouratea cemuiflora Sandwith | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cerebroidea Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cernuiflora Sandwith | Accepted |  | TRO | 
	
		| Ouratea chaffanjonii (Tiegh.) Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea chiribiquetensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea chocoensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea chrysopetala Ule | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cidiana Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cinerea Urb. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cinnamomea Wawra | Unresolved |  | WCSP (in review) | 
	
		| Ouratea claessensii De Wild. | Synonym |  | TRO | 
	
		| Ouratea clarkii Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea claudei Salvador, E.P.Santos & Cervi | Unresolved |  | WCSP (in review) | 
	
		| Ouratea claussenii Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea coccinea Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea cocleensis Dwyer | Synonym |  | TRO | 
	
		| Ouratea comorensis Engl. | Synonym |  | TRO | 
	
		| Ouratea conduplicata Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea confertiflora Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea congesta (Oliv.) Engl. ex Gilg | Synonym |  | TRO | 
	
		| Ouratea conrauana Engl. & Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cordata Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea coriacea De Wild. & Th. Dur. | Synonym |  | TRO | 
	
		| Ouratea cornuta Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea corymbosa Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea costaricensis Standl. | Synonym |  | TRO | 
	
		| Ouratea crassa Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea crassifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea crassinervia Engl. | Accepted |  | TRO | 
	
		| Ouratea crenata Tiegh. | Synonym |  | WCSP (in review) | 
	
		| Ouratea crispa Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea crocea (Griff.) Burkill | Unresolved |  | WCSP (in review) | 
	
		| Ouratea croizatii Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea cubensis Urb. | Synonym |  | TRO | 
	
		| Ouratea culminicola Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea curvata (A. St.-Hil.) Engl. ex Dwyer | Accepted |  | TRO | 
	
		| Ouratea cuspidata Engl. ex Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea cuspidata Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea darienensis Whitefoord | Accepted |  | TRO | 
	
		| Ouratea davidsei Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea decagyna Maguire | Unresolved |  | WCSP (in review) | 
	
		| Ouratea deccrescens (Tiegh.) A. Chev. | Accepted |  | TRO | 
	
		| Ouratea decipiens Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea decorans Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea decorans Baill. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea deltiodea (Baker) Gilg | Synonym |  | TRO | 
	
		| Ouratea deminuta Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea densa F. Gérard | Synonym |  | TRO | 
	
		| Ouratea densiflora De Wild. & T. Durand | Synonym |  | TRO | 
	
		| Ouratea denudata Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dependens (DC.) Baill. | Synonym |  | TRO | 
	
		| Ouratea dewevrei De Wild. & T. Durand | Synonym |  | TRO | 
	
		| Ouratea digitata Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dinklagei Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea discophora Ducke | Accepted |  | WCSP (in review) | 
	
		| Ouratea discophora subsp. pervenulosa Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea dissitiflora Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dissitiflora Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea disticha Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea divergentiflora De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dolichopoda Gilg & Mildbr. ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dolichopoda Gilg & Mildbr. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dubiosa De Wild. | Synonym |  | TRO | 
	
		| Ouratea duckei Huber | Unresolved |  | WCSP (in review) | 
	
		| Ouratea duidae Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea duparquetiana (Baill.) Gilg | Synonym |  | TRO | 
	
		| Ouratea dupuisii T.Durand & H.Durand | Unresolved |  | WCSP (in review) | 
	
		| Ouratea dusenii Gilg | Synonym |  | TRO | 
	
		| Ouratea dybovskii (Tiegh.) Aké Assi | Unresolved |  | WCSP (in review) | 
	
		| Ouratea edeensis Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea elegans (Tiegh.) Chev. | Synonym |  | TRO | 
	
		| Ouratea elliptica (A. Rich.) M. Gómez | Accepted |  | TRO | 
	
		| Ouratea elongata (Oliv.) Engl. | Synonym |  | TRO | 
	
		| Ouratea engama De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea engleri Tiegh. | Accepted |  | WCSP (in review) | 
	
		| Ouratea erecta Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea erythrocalyx Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea evoluta Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea excavata A.Chev. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea fasciculata Maguire & Steyerm. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea febrifuga Engler & Gilg | Synonym |  | TRO | 
	
		| Ouratea ferruginea Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea fieldingiana Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea finlayi (Tiegh.) Urb. | Accepted |  | TRO | 
	
		| Ouratea flamignii De Wild. | Synonym |  | TRO | 
	
		| Ouratea flava (Schumach. & Thonn.) Hutch. & Dalziel ex Stapf | Synonym |  | TRO | 
	
		| Ouratea flexipedicellata Dwyer | Accepted |  | TRO | 
	
		| Ouratea flexuosa Rusby | Unresolved |  | WCSP (in review) | 
	
		| Ouratea floribunda De Wild. | Synonym |  | TRO | 
	
		| Ouratea francineae Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea frontium Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea fusiformis Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea garcinioides Ule | Unresolved |  | WCSP (in review) | 
	
		| Ouratea gentilii De Wild. | Synonym |  | TRO | 
	
		| Ouratea gigantophylla (Erhard) Engl. | Accepted |  | TRO | 
	
		| Ouratea gilgiana H.J.P.Winkl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea gillyana (Dwyer) Sandwith & Maguire | Accepted |  | TRO | 
	
		| Ouratea gillyana subsp. pachypoda Maguire & Steyerm. | Synonym |  | TRO | 
	
		| Ouratea glaberrima (P. Beauv.) Engl. ex Gilg | Synonym |  | TRO | 
	
		| Ouratea glaucescens Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea glazioui Tiegh. | Unresolved |  | TRO | 
	
		| Ouratea glaziovii Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea globosa Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea glomerata A.Chev. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea gonzalezii Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea goossensii De Wild. | Synonym |  | TRO | 
	
		| Ouratea gossweileri Cavaco | Synonym |  | WCSP (in review) | 
	
		| Ouratea grandiflora (DC.) Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea grandifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea grosourdyi (Tiegh.) Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea guaiquinimensis Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea guatemalensis Engl. | Synonym |  | TRO | 
	
		| Ouratea guianensis Aubl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea guildingii (Planch.) Urb. | Accepted |  | WCSP (in review) | 
	
		| Ouratea guriensis Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea gymnoura Gilg & Mildbr. | Synonym |  | TRO | 
	
		| Ouratea hassleriana Chodat | Unresolved |  | WCSP (in review) | 
	
		| Ouratea hatschbachii K.Yamam. | Accepted |  | WCSP (in review) | 
	
		| Ouratea heterobracteata Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea heterodonta Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea hexasperma (A. St.-Hil.) Baill. | Synonym |  | TRO | 
	
		| Ouratea hexasperma var. planchonii Engl. | Synonym |  | TRO | 
	
		| Ouratea hiemii Exell | Unresolved |  | WCSP (in review) | 
	
		| Ouratea hiernii (Tiegh.) Exell | Synonym |  | TRO | 
	
		| Ouratea hilaireana Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea hildebrandtii Baill. | Accepted |  | TRO | 
	
		| Ouratea hoehnei Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea homaliifoha Gilg & Mildbr. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea homaliifolia Gilg & Mildbr. ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea hookeri (Planch.) Burkill | Unresolved |  | WCSP (in review) | 
	
		| Ouratea huberi Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea hueensis Pierre ex Lecomte | Unresolved |  | WCSP (in review) | 
	
		| Ouratea humblotii Baill. | Synonym |  | TRO | 
	
		| Ouratea humilis Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea ilicifolia (DC.) Baill. | Synonym |  | TRO | 
	
		| Ouratea ilicifolia var. savannarum (Britton & P. Wilson) Dwyer | Unresolved |  | TRO | 
	
		| Ouratea impressa (Tiegh.) Lemée | Accepted |  | TRO | 
	
		| Ouratea inconformis Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea insculpta Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea insulae L. Riley | Synonym |  | TRO | 
	
		| Ouratea integrifolia Aug. DC. | Synonym |  | TRO | 
	
		| Ouratea intermedia De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea inundata Engl. | Synonym |  | TRO | 
	
		| Ouratea iquitosensis J.F. Macbr. | Accepted |  | TRO | 
	
		| Ouratea isophylla Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea isophylla Pulle | Unresolved |  | WCSP (in review) | 
	
		| Ouratea isthmica L. Riley | Synonym |  | TRO | 
	
		| Ouratea itineraria Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea ituriensis Gilg & Mildbraed | Synonym |  | TRO | 
	
		| Ouratea jabotapita (L.) Baill. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea jabotapita Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea jaegeriana Urb. | Synonym |  | TRO | 
	
		| Ouratea jaliscensis McVaugh | Unresolved |  | WCSP (in review) | 
	
		| Ouratea jamaicensis (Planch.) Urb. | Accepted |  | TRO | 
	
		| Ouratea jansen-jacobsiae Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea javariensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea jefensis Whitefoord | Accepted |  | TRO | 
	
		| Ouratea juergenzii Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea jurgensenii (Planch.) Engl. | Accepted |  | TRO | 
	
		| Ouratea jurgensii Planch. | Unresolved |  | TRO | 
	
		| Ouratea kananariensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea kanukuensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea killipii J.F. Macbr. | Synonym |  | TRO | 
	
		| Ouratea kitsonii De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea klainei A.Chev. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea knappiae Whitefoord | Accepted |  | TRO | 
	
		| Ouratea laevigata (Vahl) Baill. | Accepted |  | TRO | 
	
		| Ouratea laevis De Wild. & T.Durand | Accepted |  | WCSP (in review) | 
	
		| Ouratea lajaensis Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea lanceolata Engl. | Unresolved |  | TRO | 
	
		| Ouratea lanceolata (Baker) Baill. | Accepted |  | TRO | 
	
		| Ouratea larae Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea latepaniculata De Wild. | Synonym |  | TRO | 
	
		| Ouratea latifolia (Erhard) Tiegh. | Accepted |  | TRO | 
	
		| Ouratea laurentii De Wild. | Synonym |  | TRO | 
	
		| Ouratea laurifolia (Sw.) Engl. | Accepted |  | TRO | 
	
		| Ouratea laxa Tiegh. | Synonym |  | TRO | 
	
		| Ouratea laxiflora F. Gérard | Synonym |  | TRO | 
	
		| Ouratea leblondii (Tiegh.) Lemée | Accepted |  | WCSP (in review) | 
	
		| Ouratea lecomtei Tiegh. | Accepted |  | WCSP (in review) | 
	
		| Ouratea lenticellata Urb. | Synonym |  | TRO | 
	
		| Ouratea lenticellosa Urb. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea leprieuri Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea leptoneura Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea leroyana (Tiegh.) Keay | Accepted |  | TRO | 
	
		| Ouratea lessonii Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea lherminieri (Tiegh.) Urb. | Synonym |  | TRO | 
	
		| Ouratea liesneri Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea ligans Dwyer | Synonym |  | TRO | 
	
		| Ouratea likimiensis De Wild. | Synonym |  | TRO | 
	
		| Ouratea litoralis Urb. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea lobopetala Gagnep. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea longifolia (Lam.) Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea longipes Sastre [Unplaced] | Unresolved |  | WCSP (in review) | 
	
		| Ouratea longistipulata De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea longistyla Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea luanoensis De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea lucens (Kunth) Engl. | Accepted |  | TRO | 
	
		| Ouratea lucens var. podogyna (Donn. Sm.) L.O. Williams | Synonym |  | TRO | 
	
		| Ouratea lucidula Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea lundensis Cavaco | Accepted |  | WCSP (in review) | 
	
		| Ouratea lunzuensis N. Robson | Synonym |  | TRO | 
	
		| Ouratea lutambensis Sleumer | Synonym |  | TRO | 
	
		| Ouratea lutea F. Gérard | Synonym |  | TRO | 
	
		| Ouratea maasiorum Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macranthos Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macrobotrys Rusby | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macrobotrys Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macrocarpa Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macrophylla Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macrostachys Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea macurucoensis Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea madrensis L. Riley | Accepted |  | TRO | 
	
		| Ouratea magdalenae Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea magdalense Engl. | Unresolved |  | TRO | 
	
		| Ouratea maguirei Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea maigualidae Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea malelaensis De Wild. | Synonym |  | TRO | 
	
		| Ouratea mannii (Oliv.) Engl. | Synonym |  | TRO | 
	
		| Ouratea mannii var. brachypoda (Oliv.) Gilg | Unresolved |  | TRO | 
	
		| Ouratea marahuacensis Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea margaretae Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea marginata Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea mazaruniensis A.C.Sm. & Dwyer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea medinae Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea megacarpa Ridl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea megaphylla Sastre | Accepted |  | TRO | 
	
		| Ouratea melinonii (Tiegh.) Lemée | Accepted |  | TRO | 
	
		| Ouratea membranacea (Triana & Planch.) Engl. | Accepted |  | TRO | 
	
		| Ouratea mexicana (Humb. & Bonpl.) Engl. | Accepted |  | TRO | 
	
		| Ouratea micrantha (Hook. f.) Hutch. & Dalziel | Synonym |  | TRO | 
	
		| Ouratea microcalyx Sastre | Synonym |  | TRO | 
	
		| Ouratea microdonta Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea microphylla Craib | Unresolved |  | WCSP (in review) | 
	
		| Ouratea miersii Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea mildbraedii Gilg | Synonym |  | TRO | 
	
		| Ouratea mindanaensis Merr. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea miniguianensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea molleri (Tiegh.) Exell | Unresolved |  | WCSP (in review) | 
	
		| Ouratea monantha Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea monantha Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea monticola Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea morsonii Hutch. & Dalziel | Unresolved |  | WCSP (in review) | 
	
		| Ouratea multibracteata Steyerm. ex Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea multiflora Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea myrioneura Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea nana (A. St.-Hil.) Engl. | Accepted |  | TRO | 
	
		| Ouratea neriifolia Bartell. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea nervosa Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea nervulina Cuatrec. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea neuridesii I.Castañeda | Unresolved |  | WCSP (in review) | 
	
		| Ouratea newiensis De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea nigroviolacea Gilg ex De Wild. | Synonym |  | TRO | 
	
		| Ouratea nitida (Sw.) Engl. | Accepted |  | TRO | 
	
		| Ouratea nutans Exell | Unresolved |  | WCSP (in review) | 
	
		| Ouratea oblanceolata Gilg & Mildbr. ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea oblanceolata Gilg & Mildbr. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea oblita L. Riley | Accepted |  | TRO | 
	
		| Ouratea oblongifolia Rusby | Unresolved |  | WCSP (in review) | 
	
		| Ouratea obovata Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea obtusifolia (Lam.) Gilg | Accepted |  | TRO | 
	
		| Ouratea occultinervis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea odora Poepp. ex Engl. | Synonym |  | WCSP (in review) | 
	
		| Ouratea oleifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea oleosa J.F. Macbr. | Accepted |  | TRO | 
	
		| Ouratea oligantha Steyerm. ex Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea oliveri (Tiegh.) Keay | Synonym |  | TRO | 
	
		| Ouratea oliveriana Gilg | Synonym |  | TRO | 
	
		| Ouratea oliviformis (A. St.-Hil.) Engl. | Accepted |  | TRO | 
	
		| Ouratea opaca Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea orbignyana (Tiegh.) Liesner | Accepted |  | TRO | 
	
		| Ouratea orgyalis S.Moore | Unresolved |  | WCSP (in review) | 
	
		| Ouratea orisina Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea ornata Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea osaensis Whitefoord | Accepted |  | TRO | 
	
		| Ouratea pallida Standl. | Synonym |  | TRO | 
	
		| Ouratea palmata Ducke | Unresolved |  | WCSP (in review) | 
	
		| Ouratea palmata Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea panamica Tiegh. | Synonym |  | TRO | 
	
		| Ouratea papillata Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea papulosa Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea paraguariensis Hassl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea paraguayensis Hassl. ex Sastre & Offroy | Accepted |  | TRO | 
	
		| Ouratea paratatei Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea paruensis Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea parviflora Engl. | Accepted |  | TRO | 
	
		| Ouratea parvifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea patelliformis Dwyer | Accepted |  | TRO | 
	
		| Ouratea patens Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pauciflora Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea peckii L. Riley | Synonym |  | TRO | 
	
		| Ouratea pellucida De Wild. & T. Dur. | Synonym |  | TRO | 
	
		| Ouratea pendula Poepp. ex Engl. | Accepted |  | TRO | 
	
		| Ouratea pendulosepala Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea perrieri F. Gérard | Accepted |  | TRO | 
	
		| Ouratea perseaefolia (Baker) Baill. | Synonym |  | TRO | 
	
		| Ouratea phaeophylla Sleumer | Accepted |  | TRO | 
	
		| Ouratea pilgeri Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pinetorum (C. Wright ex Griseb.) Tiegh. | Synonym |  | TRO | 
	
		| Ouratea pintoi Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pisiformis Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea pittieri Sleumer | Synonym |  | WCSP (in review) | 
	
		| Ouratea plana Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea planna Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea platicaulis Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea platyclada Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea platyclada Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea plumieri Tiegh. | Synonym |  | TRO | 
	
		| Ouratea pobeguinii A.Chev. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea podocarpa Sprague & L. Riley | Synonym |  | TRO | 
	
		| Ouratea podogyna Donn. Sm. | Accepted |  | TRO | 
	
		| Ouratea poeppigii Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea poggei (Engl.) Gilg | Synonym |  | WCSP (in review) | 
	
		| Ouratea polita Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea polyantha (Triana & Planch.) Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea polygyna Engl. | Synonym |  | TRO | 
	
		| Ouratea praecox Sleumer | Synonym |  | WCSP (in review) | 
	
		| Ouratea prominens Dwyer | Accepted |  | TRO | 
	
		| Ouratea propinqua Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea pseudogigantophylla Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pseudoguildingii Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea pseudomarahuacensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pseudotatei Maguire & Steyerm. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea psuedospicata Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea ptaritepuiensis Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea pubescens Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pulchella (Planch.) Engl. | Accepted |  | TRO | 
	
		| Ouratea pulchrifolia Ducke | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pulverulenta Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea pumila Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea pumila var. heterodoxa Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea purdieana Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea purpuripes S.Moore | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pycnostachys Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pynaertii De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pyramidalis L. Riley | Synonym |  | TRO | 
	
		| Ouratea pyrifera Cuatrec. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea pyrifolia (Griseb.) Engl. | Synonym |  | WCSP (in review) | 
	
		| Ouratea quintasii (Tiegh.) Exell | Unresolved |  | WCSP (in review) | 
	
		| Ouratea racemiformis Ule | Synonym |  | TRO | 
	
		| Ouratea ramifera Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea ramiflora Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea ramosissima Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea recurva (Tiegh.) Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea refracta De Wild. et Th. Dur. | Synonym |  | TRO | 
	
		| Ouratea repens Tiegh. | Unresolved |  | TRO | 
	
		| Ouratea reticulata (P. Beauv.) Engl. | Synonym |  | TRO | 
	
		| Ouratea reticulata var. andongensis Hiern | Synonym |  | WCSP (in review) | 
	
		| Ouratea reticulata var. poggei Engl. | Synonym |  | WCSP (in review) | 
	
		| Ouratea retrorsa Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea revoluta (C. Wright ex Griseb.) Engl. | Accepted |  | TRO | 
	
		| Ouratea rhombica Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea riedeliana Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea rigida Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea rigida De Wild. | Unresolved |  | TRO | 
	
		| Ouratea rinconensis Whitefoord | Accepted |  | TRO | 
	
		| Ouratea riparia Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea riparia Gilg & Ledermann ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea roigii Britton | Synonym |  | TRO | 
	
		| Ouratea roraimae Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea rorida Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea rosipes S.Moore | Unresolved |  | WCSP (in review) | 
	
		| Ouratea rotundifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea rotundipetala Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea rubescens Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea rubricyanea Cuatrec. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea rufidula Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea rupununiensis Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea sacleuxii (Tiegh.) Beentje | Synonym |  | TRO | 
	
		| Ouratea sagotii (Tiegh.) R.S.Cowan | Synonym |  | WCSP (in review) | 
	
		| Ouratea saldariagae Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea salicifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea sastrei Zarucchi | Accepted |  | TRO | 
	
		| Ouratea saulensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea savannarum Britton & P. Wilson | Synonym |  | TRO | 
	
		| Ouratea scandens Ule | Unresolved |  | WCSP (in review) | 
	
		| Ouratea scheffleri Engl. & Gilg | Synonym |  | TRO | 
	
		| Ouratea schizostyla Berazaín | Unresolved |  | WCSP (in review) | 
	
		| Ouratea schlechteri Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea schoenleiniana (Klotzsch) Gilg | Synonym |  | TRO | 
	
		| Ouratea schomburgkii (Planch.) Engl. | Accepted |  | TRO | 
	
		| Ouratea schusteri Gilg ex Engl. | Synonym |  | TRO | 
	
		| Ouratea scottii Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea sculpta (Tiegh.) Sastre | Accepted |  | TRO | 
	
		| Ouratea sellowii Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea semiserrata (Mart. & Nees) Engl. | Synonym |  | TRO | 
	
		| Ouratea semiserrata var. persistens (A. St.-Hil.) Engl. | Synonym |  | TRO | 
	
		| Ouratea septentrionalis Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea serrata (Gaertn.) N. Robson | Synonym |  | TRO | 
	
		| Ouratea sibangensis Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea simulans S. Moore | Accepted |  | TRO | 
	
		| Ouratea sipaliwiniensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea sipapoensis Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea soderstromii Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea spectabilis (Mart. ex Engl.) Engl. | Accepted |  | TRO | 
	
		| Ouratea spiciformis (Tiegh.) A. Chev. | Accepted |  | TRO | 
	
		| Ouratea spinulosa Urb. | Synonym |  | TRO | 
	
		| Ouratea spinulososerrata Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea spruceana Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea squamata Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea squamosa (A. DC.) Engl. | Synonym |  | TRO | 
	
		| Ouratea staudtii (Tiegh.) Keay | Accepted |  | TRO | 
	
		| Ouratea stenobasis Whitefoord | Accepted |  | TRO | 
	
		| Ouratea stenobotrys L. Riley | Synonym |  | TRO | 
	
		| Ouratea stenophylla Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea stenorrhachis Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea steyermarkii Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea stipulacea Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea stipulata (Vell.) Sastre | Accepted |  | TRO | 
	
		| Ouratea striata (Tiegh.) Lecomte | Synonym |  | TRO | 
	
		| Ouratea striata (Tiegh.) Urb. | Accepted |  | TRO | 
	
		| Ouratea sturiensis Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea suaveolens Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea subamplexicaulis Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Ouratea subcaudata Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea subcordata (Stapf) Engl. | Synonym |  | TRO | 
	
		| Ouratea subscandens Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea subscandens var. surinamensis (Planch.) Engl. | Synonym |  | TRO | 
	
		| Ouratea subumbellata Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea sulcata (Tiegh.) Keay | Synonym |  | TRO | 
	
		| Ouratea sulcatinervia Whitefoord | Accepted |  | TRO | 
	
		| Ouratea sumatrana Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea superba Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea superimpressa Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea surinamensis (Planch.) Wehlb. | Synonym |  | TRO | 
	
		| Ouratea takutuensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea talbotii De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea tarapotensis J.F. Macbr. | Accepted |  | TRO | 
	
		| Ouratea tatei Gleason | Accepted |  | WCSP (in review) | 
	
		| Ouratea tenuifolia Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea terminalis Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea tessmanniana Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea theophrasta Planch. & Linden | Synonym |  | TRO | 
	
		| Ouratea thonneri De Wild. | Synonym |  | TRO | 
	
		| Ouratea thorbeckii Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea thorelii Lecomte | Unresolved |  | WCSP (in review) | 
	
		| Ouratea thyrsoidea Engl. | Accepted |  | WCSP (in review) | 
	
		| Ouratea timehriensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea tristis Whitefoord | Accepted |  | TRO | 
	
		| Ouratea trollii Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea tuerckheimii Donn. Sm. | Accepted |  | TRO | 
	
		| Ouratea tumacoensis Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea turnerae (Hook. f.) Hutch. & Dalziel | Synonym |  | TRO | 
	
		| Ouratea umbricola Engl. ex Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea undulata Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea unilateralis Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea vaccinioides Engl. | Accepted |  | TRO | 
	
		| Ouratea valerioi Standl. | Accepted |  | TRO | 
	
		| Ouratea vanderystii De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea variifolia De Wild. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea vasivae Engl. | Synonym |  | WCSP (in review) | 
	
		| Ouratea venezuelensis Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea venulata (Tiegh.) Sastre | Accepted |  | TRO | 
	
		| Ouratea verruculosa Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea verticillata Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea vieirae Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea violacea Tiegh. | Unresolved |  | TRO | 
	
		| Ouratea vogelii (Hook. f.) Engl. ex Gilg | Synonym |  | TRO | 
	
		| Ouratea vulgaris Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea wallnoeferiana Sastre | Unresolved |  | WCSP (in review) | 
	
		| Ouratea warneckei Gilg ex Engl. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea warneckei Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea weberbaueri Sleumer | Accepted |  | TRO | 
	
		| Ouratea weddelliana Tiegh. | Unresolved |  | WCSP (in review) | 
	
		| Ouratea welwitschii (Tiegh.) Exell | Synonym |  | TRO | 
	
		| Ouratea werdermanii Sleumer | Unresolved |  | WCSP (in review) | 
	
		| Ouratea williamsii J.F. Macbr. | Accepted |  | TRO | 
	
		| Ouratea wrightii (Tiegh.) L. Riley | Synonym |  | TRO | 
	
		| Ouratea wurdackiana Maguire & Steyerm. | Synonym |  | WCSP (in review) | 
	
		| Ouratea xerophila Rizzini | Unresolved |  | WCSP (in review) | 
	
		| Ouratea xolismaefolia Britton & P. Wilson | Synonym |  | TRO | 
	
		| Ouratea yapacana Sastre | Accepted |  | WCSP (in review) | 
	
		| Ouratea zenkeri Engl. & Gilg | Unresolved |  | WCSP (in review) | 
	
		| Ouratea zeylanica Alston | Unresolved |  | WCSP (in review) |