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           [Tracheobionta]
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      Magnoliophyta
             [Angiospermae]
         Monocots
                [Liliatae]
                [Liliopsida]
                [Monocotyledoneae]
               Commelinids
                    Poales
                            <b>Xyridaceae</b>
                                     <i>Abolboda</i>
                                             <i>Abolboda acaulis</i>
                                             <i>Abolboda acicularis</i>
                                             <i>Abolboda americana</i>
                                             <i>Abolboda ciliata</i>
                                             <i>Abolboda ebracteata</i>
                                               <i>Abolboda ebracteata var. brevifolia</i>
                                             <i>Abolboda egleri</i>
                                             <i>Abolboda grandis</i>
                                               <i>Abolboda grandis var. rigida</i>
                                             <i>Abolboda granularis</i>
                                             <i>Abolboda killipii</i>
                                             <i>Abolboda linearifolia</i>
                                             <i>Abolboda macrostachya</i>
                                                   [Abolboda macrostachya var. angustior]
                                               <i>Abolboda macrostachya var. robustior</i>
                                             <i>Abolboda neblinae</i>
                                             <i>Abolboda poarchon</i>
                                             <i>Abolboda pulchella</i>
                                             <i>Abolboda uniflora</i>
                                     <i>Achlyphila</i>
                                             <i>Achlyphila disticha</i>
                                     <i>Orectanthe</i>
                                             <i>Orectanthe ptaritepuiana</i>
                                                   [Abolboda ptaritepuiana]
                                             <i>Orectanthe sceptrum</i>
                                     <i>Ramotha</i>
                                     <i>Xyris</i>
                                             <i>Xyris aberdarica</i>
                                             <i>Xyris affinis</i>
                                             <i>Xyris albescens</i>
                                             <i>Xyris almae</i>
                                             <i>Xyris ambigua</i>
                                                   [Xyris ambiqua]
                                                   [Xyris rhombipetala]
                                             <i>Xyris anceps</i>
                                                   [Xyris thompsonii]
                                               <i>Xyris anceps var. anceps</i>
                                                     [Xyris compressa]
                                                     [Xyris humilis]
                                                     [Xyris platycaulis]
                                               <i>Xyris anceps var. minima</i>
                                                     [Xyris humilis f. minima]
                                                     [Xyris minima]
                                                     [Xyris perroteti]
                                             <i>Xyris angularis</i>
                                                   [Xyris decipiens var. vanderystii]
                                                   [Xyris vanderystii]
                                             <i>Xyris angustifolia</i>
                                                   [Xyris exigua]
                                             <i>Xyris anisophylla</i>
                                             <i>Xyris apureana</i>
                                             <i>Xyris aquatica</i>
                                             <i>Xyris aracamunae</i>
                                             <i>Xyris arachnoidea</i>
                                             <i>Xyris araracuarae</i>
                                             <i>Xyris archeri</i>
                                             <i>Xyris arenicola</i>
                                             <i>Xyris aristata</i>
                                                   [Xyris dilungensis]
                                                   [Xyris laciniata]
                                                   [Xyris leonensis]
                                                   [Xyris subaristata]
                                             <i>Xyris asperula</i>
                                             <i>Xyris asterotricha</i>
                                             <i>Xyris atrata</i>
                                             <i>Xyris atriceps</i>
                                             <i>Xyris aurea</i>
                                             <i>Xyris bahiana</i>
                                             <i>Xyris baldwiniana</i>
                                                   [Xyris tenuifolia]
                                               <i>Xyris baldwiniana var. tenuifolia</i>
                                             <i>Xyris bampsii</i>
                                             <i>Xyris barteri</i>
                                                   [Xyris ledermannii]
                                             <i>Xyris bayardii</i>
                                             <i>Xyris bialata</i>
                                             <i>Xyris bicarinata</i>
                                             <i>Xyris bicephala</i>
                                             <i>Xyris bicostata</i>
                                             <i>Xyris bissei</i>
                                             <i>Xyris boliviana</i>
                                             <i>Xyris borneensis</i>
                                             <i>Xyris brachyfolia</i>
                                             <i>Xyris brachysepala</i>
                                             <i>Xyris bracteata</i>
                                                   [Xyris gracilis subsp. laxa]
                                             <i>Xyris bracteicaulis</i>
                                             <i>Xyris brevifolia</i>
                                             <i>Xyris bulbosa</i>
                                             <i>Xyris byssacea</i>
                                             <i>Xyris calcicola</i>
                                             <i>Xyris calderonii</i>
                                             <i>Xyris capensis</i>
                                                   [Xyris melanocephala]
                                               <i>Xyris capensis var. capensis</i>
                                                     [Xyris capensis var. angolensis]
                                                     [Xyris capensis var. microcephala]
                                                     [Xyris capensis var. multicaulis]
                                                     [Xyris capensis var. nilagiriensis]
                                                     [Xyris capensis var. schoenoides]
                                                     [Xyris nilagiriensis]
                                                     [Xyris reptans]
                                                     [Xyris schoenoides]
                                                     [Xyris semifuscata]
                                                     [Xyris subrubella]
                                                     [Xyris zombana]
                                               <i>Xyris capensis var. pallescens</i>
                                                     [Xyris capensis f. semifusca]
                                             <i>Xyris capillaris</i>
                                             <i>Xyris capnoides</i>
                                             <i>Xyris carinata</i>
                                             <i>Xyris caroliniana</i>
                                                   [Xyris caroliniana f. flaccida]
                                                   [Xyris caroliniana f. phyllolepis]
                                                   [Xyris caroliniana var. scabra]
                                                   [Xyris conocephala]
                                                   [Xyris graminifolia]
                                                   [Xyris scabra]
                                               <i>Xyris caroliniana var. olneyi</i>
                                             <i>Xyris chapmanii</i>
                                             <i>Xyris cheumatophila</i>
                                             <i>Xyris chimantae</i>
                                             <i>Xyris ciliata</i>
                                             <i>Xyris communis</i>
                                             <i>Xyris complanata</i>
                                                   [Xyris elongata]
                                             <i>Xyris concinna</i>
                                             <i>Xyris confusa</i>
                                             <i>Xyris congdonii</i>
                                             <i>Xyris congensis</i>
                                                   [Xyris bakeri]
                                                   [Xyris baronii]
                                                   [Xyris batokana]
                                                   [Xyris baumii]
                                                   [Xyris extensa]
                                                   [Xyris hildebrandtii var. angustifolia]
                                                   [Xyris hildebrandtii]
                                                   [Xyris leptophylla]
                                                   [Xyris nitida]
                                                   [Xyris umbilonis]
                                             <i>Xyris consolida</i>
                                             <i>Xyris correlliorum</i>
                                             <i>Xyris cryptantha</i>
                                             <i>Xyris culmenicola</i>
                                             <i>Xyris curassavica</i>
                                             <i>Xyris curtissii</i>
                                             <i>Xyris cylindrostachya</i>
                                             <i>Xyris cyperoides</i>
                                             <i>Xyris decipiens</i>
                                             <i>Xyris delicatula</i>
                                             <i>Xyris densa</i>
                                             <i>Xyris diaphanobracteata</i>
                                             <i>Xyris difformis</i>
                                               <i>Xyris difformis var. curtissii</i>
                                               <i>Xyris difformis var. difformis</i>
                                               <i>Xyris difformis var. floridana</i>
                                             <i>Xyris dissimilis</i>
                                             <i>Xyris dissitifolia</i>
                                             <i>Xyris drummondii</i>
                                             <i>Xyris ednae</i>
                                             <i>Xyris ekmanii</i>
                                             <i>Xyris elata</i>
                                             <i>Xyris elegantula</i>
                                             <i>Xyris eleocharoides</i>
                                             <i>Xyris elliottii</i>
                                                   [Xyris elliottii var. stenotera]
                                             <i>Xyris erosa</i>
                                             <i>Xyris erubescens</i>
                                                   [Xyris rhodesiana]
                                                   [Xyris theodori]
                                             <i>Xyris esmeraldae</i>
                                             <i>Xyris fallax</i>
                                             <i>Xyris ferreirae</i>
                                             <i>Xyris festucifolia</i>
                                             <i>Xyris fibrosa</i>
                                             <i>Xyris filifolia</i>
                                             <i>Xyris filiformis</i>
                                             <i>Xyris fimbriata</i>
                                             <i>Xyris flabelliformis</i>
                                             <i>Xyris flexuosa</i>
                                             <i>Xyris floridana</i>
                                             <i>Xyris foliolata</i>
                                             <i>Xyris frequens</i>
                                             <i>Xyris friesii</i>
                                                   [Xyris pocockii]
                                             <i>Xyris frondosa</i>
                                             <i>Xyris fugaciflora</i>
                                             <i>Xyris fuliginea</i>
                                             <i>Xyris gerrardii</i>
                                             <i>Xyris glandacea</i>
                                             <i>Xyris globosa</i>
                                             <i>Xyris glochidiata</i>
                                             <i>Xyris gongylospica</i>
                                             <i>Xyris gossweileri</i>
                                             <i>Xyris goyazensis</i>
                                             <i>Xyris gracilis</i>
                                             <i>Xyris grandiceps</i>
                                                   [Xyris falx]
                                             <i>Xyris graniticola</i>
                                             <i>Xyris grisebachii</i>
                                             <i>Xyris guaranitica</i>
                                             <i>Xyris guianensis</i>
                                             <i>Xyris guillenii</i>
                                             <i>Xyris harleyi</i>
                                             <i>Xyris huberi</i>
                                                   [Xyris foveolata]
                                             <i>Xyris huillensis</i>
                                                   [Xyris capensis var. medullosa]
                                             <i>Xyris humpatensis</i>
                                             <i>Xyris hymenachne</i>
                                             <i>Xyris imitatrix</i>
                                             <i>Xyris indica</i>
                                                   [Xyris robusta]
                                             <i>Xyris insignis</i>
                                             <i>Xyris involucrata</i>
                                             <i>Xyris iridifolia</i>
                                             <i>Xyris isoetifolia</i>
                                             <i>Xyris itambensis</i>
                                             <i>Xyris jataiana</i>
                                             <i>Xyris juncea</i>
                                             <i>Xyris juncifolia</i>
                                             <i>Xyris jupicai</i>
                                                   [Xyris gymnoptera]
                                                   [Xyris jupicai var. brachylepis]
                                                   [Xyris partita]
                                             <i>Xyris kibaraensis</i>
                                             <i>Xyris kornasiana</i>
                                             <i>Xyris kukenaniana</i>
                                             <i>Xyris kundelungensis</i>
                                             <i>Xyris kwangolana</i>
                                             <i>Xyris lacerata</i>
                                             <i>Xyris laniceps</i>
                                             <i>Xyris lanuginosa</i>
                                             <i>Xyris lanulobractea</i>
                                             <i>Xyris laxiflora</i>
                                             <i>Xyris laxifolia</i>
                                               <i>Xyris laxifolia var. iridifolia</i>
                                               <i>Xyris laxifolia var. laxifolia</i>
                                             <i>Xyris lejolyana</i>
                                             <i>Xyris liesneri</i>
                                             <i>Xyris lithophila</i>
                                             <i>Xyris lomatophylla</i>
                                             <i>Xyris longibracteata</i>
                                             <i>Xyris longiscapa</i>
                                             <i>Xyris longisepala</i>
                                             <i>Xyris louisianica</i>
                                             <i>Xyris lucida</i>
                                             <i>Xyris lugubris</i>
                                             <i>Xyris lutescens</i>
                                             <i>Xyris machrisiana</i>
                                             <i>Xyris macrocephala</i>
                                             <i>Xyris makuensis</i>
                                             <i>Xyris mallocephala</i>
                                             <i>Xyris malmeana</i>
                                             <i>Xyris mantuensis</i>
                                             <i>Xyris melanovaginata</i>
                                             <i>Xyris mello-barretoi</i>
                                             <i>Xyris membranibracteata</i>
                                             <i>Xyris mentiens</i>
                                             <i>Xyris mertensiana</i>
                                             <i>Xyris metallica</i>
                                             <i>Xyris mexiae</i>
                                             <i>Xyris mexicana</i>
                                             <i>Xyris mima</i>
                                             <i>Xyris minarum</i>
                                             <i>Xyris montana</i>
                                                   [Xyris papillosa var. exserta]
                                             <i>Xyris moraesii</i>
                                             <i>Xyris morii</i>
                                             <i>Xyris mucujensis</i>
                                             <i>Xyris natalensis</i>
                                             <i>Xyris navicularis</i>
                                                   [Xyris subnavicularis]
                                             <i>Xyris neblinae</i>
                                             <i>Xyris neglecta</i>
                                             <i>Xyris nigrescens</i>
                                             <i>Xyris nilssonii</i>
                                             <i>Xyris nivea</i>
                                             <i>Xyris obcordata</i>
                                             <i>Xyris obscura</i>
                                                   [Xyris brunnea]
                                             <i>Xyris obtusiuscula</i>
                                             <i>Xyris operculata</i>
                                             <i>Xyris ornithoptera</i>
                                             <i>Xyris oxylepis</i>
                                                   [Xyris fusiformis]
                                             <i>Xyris paleacea</i>
                                             <i>Xyris pallescens</i>
                                             <i>Xyris pallidula</i>
                                             <i>Xyris panacea</i>
                                             <i>Xyris papillosa</i>
                                             <i>Xyris paradisiaca</i>
                                             <i>Xyris paraensis</i>
                                             <i>Xyris parvula</i>
                                             <i>Xyris pauciflora</i>
                                             <i>Xyris pectinata</i>
                                             <i>Xyris peteri</i>
                                             <i>Xyris phaeocephala</i>
                                             <i>Xyris picea</i>
                                             <i>Xyris pilosa</i>
                                             <i>Xyris piraquarae</i>
                                             <i>Xyris platylepis</i>
                                             <i>Xyris platystachya</i>
                                             <i>Xyris popeana</i>
                                             <i>Xyris porcata</i>
                                             <i>Xyris porphyrea</i>
                                             <i>Xyris pranceana</i>
                                             <i>Xyris pratensis</i>
                                             <i>Xyris prolificans</i>
                                             <i>Xyris ptariana</i>
                                             <i>Xyris pterygoblephara</i>
                                               <i>Xyris pterygoblephara var. pterygoblephara</i>
                                                     [Xyris peregrina]
                                             <i>Xyris pumila</i>
                                             <i>Xyris ramboi</i>
                                             <i>Xyris regnellii</i>
                                             <i>Xyris rehmannii</i>
                                                   [Xyris dispar]
                                                   [Xyris rigidescens]
                                             <i>Xyris reitzii</i>
                                             <i>Xyris retrorsifimbriata</i>
                                             <i>Xyris rhodolepis</i>
                                                   [Xyris humpatensis var. rhodolepis]
                                             <i>Xyris rigida</i>
                                             <i>Xyris riparia</i>
                                             <i>Xyris roraimae</i>
                                             <i>Xyris rubella</i>
                                             <i>Xyris rubrolimbata</i>
                                             <i>Xyris rubromarginata</i>
                                             <i>Xyris rupicola</i>
                                             <i>Xyris sanguinea</i>
                                             <i>Xyris savanensis</i>
                                             <i>Xyris scabridula</i>
                                             <i>Xyris scabrifolia</i>
                                             <i>Xyris sceptrifera</i>
                                             <i>Xyris schizachne</i>
                                             <i>Xyris schliebenii</i>
                                             <i>Xyris schneeana</i>
                                             <i>Xyris serotina</i>
                                                   [Xyris fascicularis]
                                             <i>Xyris setigera</i>
                                             <i>Xyris seubertiana</i>
                                             <i>Xyris seubertii</i>
                                               <i>Xyris seubertii var. espinhacae</i>
                                             <i>Xyris sincorana</i>
                                             <i>Xyris smalliana</i>
                                               <i>Xyris smalliana var. olneyi</i>
                                             <i>Xyris sparsifolia</i>
                                             <i>Xyris spathacea</i>
                                             <i>Xyris spathifolia</i>
                                             <i>Xyris spectabilis</i>
                                             <i>Xyris sphaerocephala</i>
                                             <i>Xyris spinulosa</i>
                                             <i>Xyris spruceana</i>
                                             <i>Xyris stenocephala</i>
                                             <i>Xyris stenophylla</i>
                                             <i>Xyris stenophylloides</i>
                                             <i>Xyris stenostachya</i>
                                             <i>Xyris stenotera</i>
                                             <i>Xyris straminea</i>
                                                   [Xyris multicaulis]
                                             <i>Xyris stricta</i>
                                               <i>Xyris stricta var. obscura</i>
                                               <i>Xyris stricta var. stricta</i>
                                             <i>Xyris subalata</i>
                                             <i>Xyris subasperula</i>
                                             <i>Xyris subglabrata</i>
                                             <i>Xyris subsetigera</i>
                                             <i>Xyris subtilis</i>
                                             <i>Xyris subulata</i>
                                               <i>Xyris subulata var. subulata</i>
                                             <i>Xyris subuniflora</i>
                                             <i>Xyris surinamensis</i>
                                             <i>Xyris symoensii</i>
                                             <i>Xyris teinosperma</i>
                                             <i>Xyris tenella</i>
                                             <i>Xyris tennesseensis</i>
                                             <i>Xyris teres</i>
                                             <i>Xyris terrestris</i>
                                             <i>Xyris thysanolepis</i>
                                             <i>Xyris toronoana</i>
                                             <i>Xyris torta</i>
                                               <i>Xyris torta var. macropoda</i>
                                               <i>Xyris torta var. occidentalis</i>
                                             <i>Xyris tortula</i>
                                                   [Xyris simulans]
                                             <i>Xyris trachyphylla</i>
                                             <i>Xyris trachysperma</i>
                                             <i>Xyris trichophylla</i>
                                             <i>Xyris tristis</i>
                                             <i>Xyris uleana</i>
                                               <i>Xyris uleana var. uleana</i>
                                             <i>Xyris uninervis</i>
                                             <i>Xyris unistriata</i>
                                             <i>Xyris vacillans</i>
                                             <i>Xyris valdeapiculata</i>
                                             <i>Xyris valida</i>
                                             <i>Xyris veruina</i>
                                             <i>Xyris vestita</i>
                                             <i>Xyris villosicarinata</i>
                                             <i>Xyris welwitschii</i>
                                             <i>Xyris witsenioides</i>
                                             <i>Xyris wurdackii</i>
                                             <i>Xyris xiphophylla</i>
                                               <i>Xyris subulata var. acutifolia</i>
                                                     [Xyris weberi]