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                            <b>Pottiaceae</b>
                                     <i>Acaulon</i>
                                             <i>Acaulon apiculatum</i>
                                             <i>Acaulon megalosporum</i>
                                             <i>Acaulon muticum</i>
                                                   [Phascum muticum]
                                               <i>Acaulon muticum var. muticum</i>
                                               <i>Acaulon muticum var. rufescens</i>
                                             <i>Acaulon rubrum</i>
                                             <i>Acaulon rufescens</i>
                                             <i>Acaulon runyoni</i>
                                             <i>Acaulon schimperianum</i>
                                             <i>Acaulon triquetrum</i>
                                             <i>Acaulon uleanum</i>
                                     <i>Algaria</i>
                                     <i>Aloina</i>
                                             <i>Aloina aloides</i>
                                                   [Tortula aloides]
                                               <i>Aloina aloides var. ambigua</i>
                                             <i>Aloina ambigua</i>
                                             <i>Aloina bifrons</i>
                                             <i>Aloina brevirostris</i>
                                             <i>Aloina hamulus</i>
                                             <i>Aloina pilifera</i>
                                             <i>Aloina rigida</i>
                                               <i>Aloina rigida var. pilifera</i>
                                               <i>Aloina rigida var. rigida</i>
                                     <i>Anoectangium</i>
                                             <i>Anoectangium aestivum</i>
                                             <i>Anoectangium arizonicum</i>
                                             <i>Anoectangium compactum</i>
                                               <i>Anoectangium compactum var. alaskanum</i>
                                             <i>Anoectangium euchloron</i>
                                             <i>Anoectangium handelii</i>
                                             <i>Anoectangium incurvans</i>
                                             <i>Anoectangium obtusifolium</i>
                                             <i>Anoectangium peckii</i>
                                             <i>Anoectangium sendtnerianum</i>
                                               <i>Anoectangium sendtnerianum var. tenuinerve</i>
                                             <i>Anoectangium stracheyanum</i>
                                             <i>Anoectangium tenuinerve</i>
                                     <i>Aschisma</i>
                                             <i>Aschisma kansanum</i>
                                     <i>Astomum</i>
                                             <i>Astomum crispum</i>
                                             <i>Astomum ludovicianum</i>
                                             <i>Astomum muehlenbergianum</i>
                                             <i>Astomum nitidulum</i>
                                             <i>Astomum occidentale</i>
                                             <i>Astomum phascoides</i>
                                             <i>Astomum sullivantii</i>
                                     <i>Barbula</i>
                                             <i>Barbula acuta</i>
                                               <i>Barbula acuta subsp. icmadophila</i>
                                               <i>Barbula acuta var. acuta</i>
                                               <i>Barbula acuta var. bescherellei</i>
                                               <i>Barbula acuta var. icmadophila</i>
                                             <i>Barbula agraria</i>
                                             <i>Barbula amplexifolia</i>
                                             <i>Barbula andreaeoides</i>
                                             <i>Barbula arcuata</i>
                                             <i>Barbula asperifolia</i>
                                             <i>Barbula aurea</i>
                                             <i>Barbula australasiae</i>
                                             <i>Barbula bescherellei</i>
                                             <i>Barbula bolleana</i>
                                             <i>Barbula brachyphyllus</i>
                                             <i>Barbula cancellata</i>
                                             <i>Barbula chloronotos</i>
                                             <i>Barbula columbiana</i>
                                             <i>Barbula convoluta</i>
                                               <i>Barbula convoluta var. convoluta</i>
                                               <i>Barbula convoluta var. eustegia</i>
                                               <i>Barbula convoluta var. gallinula</i>
                                               <i>Barbula convoluta var. obtusata</i>
                                             <i>Barbula coreensis</i>
                                             <i>Barbula crocea</i>
                                             <i>Barbula cruegeri</i>
                                             <i>Barbula cylindrica</i>
                                             <i>Barbula ehrenbergii</i>
                                             <i>Barbula eustegia</i>
                                             <i>Barbula fallax</i>
                                               <i>Barbula fallax var. recurvifolia</i>
                                             <i>Barbula ferruginascens</i>
                                             <i>Barbula haringae</i>
                                             <i>Barbula icmadophila</i>
                                             <i>Barbula imshaugii</i>
                                             <i>Barbula inaequalifolia</i>
                                             <i>Barbula indica</i>
                                               <i>Barbula indica var. gregaria</i>
                                               <i>Barbula indica var. indica</i>
                                             <i>Barbula johansenii</i>
                                             <i>Barbula maxima</i>
                                             <i>Barbula michiganensis</i>
                                             <i>Barbula mucronifolia</i>
                                             <i>Barbula mutica</i>
                                               <i>Barbula mutica var. mutica</i>
                                               <i>Barbula mutica var. rufescens</i>
                                             <i>Barbula nigrescens</i>
                                             <i>Barbula occidentalis</i>
                                             <i>Barbula orizabensis</i>
                                             <i>Barbula perobtusa</i>
                                             <i>Barbula platyneura</i>
                                             <i>Barbula reflexa</i>
                                             <i>Barbula rigidula</i>
                                               <i>Barbula rigidula var. icmadophila</i>
                                             <i>Barbula rubiginosa</i>
                                             <i>Barbula rufofusca</i>
                                             <i>Barbula schimperianum</i>
                                             <i>Barbula spiralis</i>
                                             <i>Barbula subandreaeoides</i>
                                             <i>Barbula subgracilis</i>
                                             <i>Barbula tortuosa</i>
                                             <i>Barbula triquetrum</i>
                                             <i>Barbula unguiculata</i>
                                                   <i>Barbula unguiculata f. apiculata</i>
                                                   <i>Barbula unguiculata f. propagulosa</i>
                                             <i>Barbula unquiculata</i>
                                             <i>Barbula vinealis</i>
                                               <i>Barbula vinealis var. flaccida</i>
                                             <i>Barbula whitehouseae</i>
                                     <i>Bellibarbula</i>
                                             <i>Bellibarbula recurva</i>
                                     <i>Bryoerythrophyllum</i>
                                             <i>Bryoerythrophyllum alpigenum</i>
                                             <i>Bryoerythrophyllum campylocarpum</i>
                                             <i>Bryoerythrophyllum columbianum</i>
                                             <i>Bryoerythrophyllum ferruginascens</i>
                                             <i>Bryoerythrophyllum inaequalifolium</i>
                                             <i>Bryoerythrophyllum recurvifolium</i>
                                             <i>Bryoerythrophyllum recurvirostre</i>
                                               <i>Bryoerythrophyllum recurvirostre var. dentatum</i>
                                             <i>Bryoerythrophyllum recurvirostrum</i>
                                             <i>Bryoerythrophyllum recurvum</i>
                                     <i>Calyptopogon</i>
                                             <i>Calyptopogon mnioides</i>
                                     <i>Chenia</i>
                                             <i>Chenia leptophylla</i>
                                     <i>Crossidium</i>
                                             <i>Crossidium aberrans</i>
                                             <i>Crossidium chloronotos</i>
                                             <i>Crossidium crassinerve</i>
                                             <i>Crossidium crassinervia</i>
                                             <i>Crossidium crassinervium</i>
                                               <i>Crossidium crassinervium var. crassinervium</i>
                                             <i>Crossidium desertorum</i>
                                             <i>Crossidium erosum</i>
                                             <i>Crossidium griseum</i>
                                             <i>Crossidium rosei</i>
                                             <i>Crossidium seriatum</i>
                                             <i>Crossidium spatulaefolium</i>
                                             <i>Crossidium squamiferum</i>
                                               <i>Crossidium squamiferum var. pottioideum</i>
                                               <i>Crossidium squamiferum var. squamiferum</i>
                                             <i>Crossidium succulentum</i>
                                     <i>Crumia</i>
                                             <i>Crumia deciduidentata</i>
                                             <i>Crumia latifolia</i>
                                     <i>Desmatodon</i>
                                             <i>Desmatodon barbula</i>
                                             <i>Desmatodon cernuus</i>
                                             <i>Desmatodon coloradensis</i>
                                             <i>Desmatodon convolutus</i>
                                             <i>Desmatodon ellesmerensis</i>
                                             <i>Desmatodon fisherae</i>
                                             <i>Desmatodon guepinii</i>
                                             <i>Desmatodon heimii</i>
                                               <i>Desmatodon heimii var. arctica</i>
                                               <i>Desmatodon heimii var. heimii</i>
                                               <i>Desmatodon heimii var. obtusifolius</i>
                                             <i>Desmatodon hendersonii</i>
                                             <i>Desmatodon latifolius</i>
                                               <i>Desmatodon latifolius var. latifolius</i>
                                               <i>Desmatodon latifolius var. muticus</i>
                                             <i>Desmatodon laureri</i>
                                             <i>Desmatodon leucostoma</i>
                                             <i>Desmatodon obtusifolius</i>
                                             <i>Desmatodon plinthobius</i>
                                             <i>Desmatodon porteri</i>
                                             <i>Desmatodon randii</i>
                                             <i>Desmatodon sprengelii</i>
                                             <i>Desmatodon suberectus</i>
                                             <i>Desmatodon systylius</i>
                                     <i>Dialytrichia</i>
                                             <i>Dialytrichia mucronata</i>
                                                   [Cinclidotus mucronatus]
                                     <i>Didymodon</i>
                                             <i>Didymodon acutus</i>
                                               <i>Didymodon acutus var. ditrichoides</i>
                                             <i>Didymodon alpigenum</i>
                                             <i>Didymodon anserinocapitatus</i>
                                             <i>Didymodon asperifolius</i>
                                             <i>Didymodon australasiae</i>
                                               <i>Didymodon australasiae var. umbrosus</i>
                                             <i>Didymodon bistratosus</i>
                                             <i>Didymodon brachyphyllus</i>
                                             <i>Didymodon columbianus</i>
                                             <i>Didymodon constrictus</i>
                                                   [Barbula nipponica var. gracilis]
                                                   [Barbula nipponica]
                                             <i>Didymodon deciduus</i>
                                                   [Barbula uruguensis]
                                             <i>Didymodon eckeliae</i>
                                             <i>Didymodon fallax</i>
                                               <i>Didymodon fallax var. fallax</i>
                                               <i>Didymodon fallax var. reflexus</i>
                                             <i>Didymodon ferrugineus</i>
                                             <i>Didymodon fuscoviridis</i>
                                             <i>Didymodon giganteus</i>
                                             <i>Didymodon hinckleyi</i>
                                             <i>Didymodon icmadophilus</i>
                                             <i>Didymodon inaequalifolius</i>
                                             <i>Didymodon insulanus</i>
                                             <i>Didymodon johansenii</i>
                                             <i>Didymodon laevigatus</i>
                                                   [Didymodon coffeatus]
                                             <i>Didymodon leskeoides</i>
                                             <i>Didymodon luridus</i>
                                             <i>Didymodon maschalogena</i>
                                             <i>Didymodon maximus</i>
                                             <i>Didymodon mexicanus</i>
                                               <i>Didymodon mexicanus var. subulatus</i>
                                             <i>Didymodon michiganensis</i>
                                             <i>Didymodon nevadensis</i>
                                             <i>Didymodon nicholsonii</i>
                                             <i>Didymodon nigrescens</i>
                                             <i>Didymodon norrisii</i>
                                             <i>Didymodon occidentalis</i>
                                             <i>Didymodon perobtusus</i>
                                             <i>Didymodon recurvirostris</i>
                                               <i>Didymodon recurvirostris var. dentatus</i>
                                             <i>Didymodon reedii</i>
                                             <i>Didymodon revolutus</i>
                                             <i>Didymodon rigidicaulis</i>
                                             <i>Didymodon rigidulus</i>
                                               <i>Didymodon rigidulus var. gracilis</i>
                                               <i>Didymodon rigidulus var. icmadophilus</i>
                                               <i>Didymodon rigidulus var. rigidulus</i>
                                               <i>Didymodon rigidulus var. subulatus</i>
                                             <i>Didymodon rubellus</i>
                                               <i>Didymodon rubellus subsp. alpigenus</i>
                                             <i>Didymodon rufus</i>
                                             <i>Didymodon subandreaeoides</i>
                                             <i>Didymodon tectorum</i>
                                             <i>Didymodon tophaceus</i>
                                               <i>Didymodon tophaceus var. decurrens</i>
                                             <i>Didymodon trifarius</i>
                                               <i>Didymodon trifarius subsp. nicholsonii</i>
                                             <i>Didymodon umbrosus</i>
                                             <i>Didymodon vinealis</i>
                                                   [Barbula torquata]
                                               <i>Didymodon vinealis var. brachyphyllus</i>
                                               <i>Didymodon vinealis var. flaccidus</i>
                                               <i>Didymodon vinealis var. luridus</i>
                                               <i>Didymodon vinealis var. nicholsonii</i>
                                               <i>Didymodon vinealis var. rubiginosus</i>
                                               <i>Didymodon vinealis var. vinealis</i>
                                     <i>Erythrobarbula</i>
                                             <i>Erythrobarbula recurvirostris</i>
                                     <i>Eucladium</i>
                                             <i>Eucladium verticillatum</i>
                                                   [Weissia verticillata]
                                             <i>Eucladium verticullatum</i>
                                     <i>Geheebia</i>
                                             <i>Geheebia gigantea</i>
                                             <i>Geheebia spadicea</i>
                                                   [Didymodon spadiceus]
                                             <i>Geheebia tophacea</i>
                                     <i>Globulinella</i>
                                             <i>Globulinella globifera</i>
                                     <i>Gymnostomiella</i>
                                             <i>Gymnostomiella orcuttii</i>
                                     <i>Gymnostomum</i>
                                             <i>Gymnostomum aeruginosum</i>
                                                   [Gymnostomum rupestre]
                                             <i>Gymnostomum angustifolium</i>
                                             <i>Gymnostomum calcareum</i>
                                             <i>Gymnostomum curvirostrum</i>
                                             <i>Gymnostomum insigne</i>
                                             <i>Gymnostomum latifolium</i>
                                             <i>Gymnostomum recurvirostre</i>
                                               <i>Gymnostomum recurvirostre var. commutatum</i>
                                               <i>Gymnostomum recurvirostre var. latifolium</i>
                                               <i>Gymnostomum recurvirostre var. scabrum</i>
                                             <i>Gymnostomum tenue</i>
                                             <i>Gymnostomum viridulum</i>
                                     <i>Gyroweisia</i>
                                             <i>Gyroweisia reflexa</i>
                                             <i>Gyroweisia tenuis</i>
                                     <i>Hennediella</i>
                                             <i>Hennediella heimii</i>
                                               <i>Hennediella heimii var. arctica</i>
                                               <i>Hennediella heimii var. heimii</i>
                                             <i>Hennediella stanfordensis</i>
                                     <i>Hilpertia</i>
                                             <i>Hilpertia scotteri</i>
                                             <i>Hilpertia velenovskyi</i>
                                     <i>Husnotiella</i>
                                             <i>Husnotiella pringlei</i>
                                             <i>Husnotiella revoluta</i>
                                               <i>Husnotiella revoluta var. palmeri</i>
                                             <i>Husnotiella torquescens</i>
                                     <i>Hydrogonium</i>
                                             <i>Hydrogonium bolleanum</i>
                                                   [Hydrogonium ehrenbergii]
                                     <i>Hymenostomum</i>
                                             <i>Hymenostomum inoperculatum</i>
                                             <i>Hymenostomum microstomum</i>
                                             <i>Hymenostomum rostellatum</i>
                                             <i>Hymenostomum tortile</i>
                                     <i>Hymenostylium</i>
                                             <i>Hymenostylium curvirostre</i>
                                               <i>Hymenostylium curvirostre var. cataractarum</i>
                                             <i>Hymenostylium insigne</i>
                                             <i>Hymenostylium recurvirostre</i>
                                                   [Gymnostomum curvirostre]
                                               <i>Hymenostylium recurvirostre var. insigne</i>
                                               <i>Hymenostylium recurvirostre var. latifolium</i>
                                             <i>Hymenostylium recurvirostrum</i>
                                                   [Gymnostomum recurvirostrum var. commutatum]
                                                   [Gymnostomum recurvirostrum]
                                               <i>Hymenostylium recurvirostrum var. insigne</i>
                                               <i>Hymenostylium recurvirostrum var. recurvirostrum</i>
                                             <i>Hymenostylium scabrum</i>
                                     <i>Hyophila</i>
                                             <i>Hyophila involuta</i>
                                             <i>Hyophila riparia</i>
                                             <i>Hyophila stanfordensis</i>
                                             <i>Hyophila tortula</i>
                                     <i>Hyophilopsis</i>
                                             <i>Hyophilopsis sprengelii</i>
                                     <i>Leptodontium</i>
                                             <i>Leptodontium aggregatum</i>
                                             <i>Leptodontium araucarieti</i>
                                             <i>Leptodontium excelsum</i>
                                                   [Leptodontium sulphureum var. panamense]
                                                   [Leptodontium viticulosoides var. panamense]
                                             <i>Leptodontium flexifolium</i>
                                               <i>Leptodontium flexifolium var. americanum</i>
                                             <i>Leptodontium luteum</i>
                                             <i>Leptodontium orcuttii</i>
                                             <i>Leptodontium recurvifolium</i>
                                             <i>Leptodontium viticulosoides</i>
                                               <i>Leptodontium viticulosoides var. sulphureum</i>
                                     <i>Luisierella</i>
                                             <i>Luisierella barbula</i>
                                     <i>Merceya</i>
                                             <i>Merceya latifolia</i>
                                             <i>Merceya ligulata</i>
                                               <i>Merceya ligulata var. bartramii</i>
                                     <i>Microbryum</i>
                                             <i>Microbryum davallianum</i>
                                               <i>Microbryum davallianum var. commutatum</i>
                                               <i>Microbryum davallianum var. conicum</i>
                                               <i>Microbryum davallianum var. davallianum</i>
                                             <i>Microbryum floerkeanum</i>
                                             <i>Microbryum starckeanum</i>
                                               <i>Microbryum starckeanum var. brachyodus</i>
                                               <i>Microbryum starckeanum var. fosbergii</i>
                                               <i>Microbryum starckeanum var. starckeanum</i>
                                             <i>Microbryum starkeanum</i>
                                             <i>Microbryum vlassovii</i>
                                     <i>Micromitrium</i>
                                             <i>Micromitrium austinii</i>
                                                   [Micromitrium austinii var. floridanum]
                                                   [Nanomitrium austinii var. floridanum]
                                             <i>Micromitrium megalosporum</i>
                                                   [Nanomitrium megalosporum]
                                             <i>Micromitrium synoicum</i>
                                                   [Ephemerum synoicum]
                                                   [Nanomitrium synoicum]
                                             <i>Micromitrium tenerum</i>
                                                   [Nanomitrium austinii]
                                                   [Nanomitrium tenerum]
                                             <i>Micromitrium wrightii</i>
                                                   [Nanomitrium wrightii]
                                     <i>Molendoa</i>
                                             <i>Molendoa hornschuchiana</i>
                                             <i>Molendoa obtusifolia</i>
                                             <i>Molendoa ogalalensis</i>
                                             <i>Molendoa sendtneriana</i>
                                     <i>Morinia</i>
                                             <i>Morinia ehrenbergiana</i>
                                                   [Barbula ehrenbergiana]
                                     <i>Neocardotia</i>
                                             <i>Neocardotia subnigra</i>
                                     <i>Neohyophila</i>
                                             <i>Neohyophila sprengelii</i>
                                             <i>Neohyophila sprengleri</i>
                                     <i>Oxystegus</i>
                                             <i>Oxystegus cylindricus</i>
                                             <i>Oxystegus recurvifolius</i>
                                             <i>Oxystegus spiralis</i>
                                             <i>Oxystegus tenuirostris</i>
                                               <i>Oxystegus tenuirostris var. stenocarpus</i>
                                     <i>Ozobryum</i>
                                             <i>Ozobryum ogalalense</i>
                                     <i>Paraleptodontium</i>
                                             <i>Paraleptodontium recurvifolium</i>
                                     <i>Pharomitrium</i>
                                             <i>Pharomitrium subsessile</i>
                                     <i>Phascum</i>
                                             <i>Phascum acaulon</i>
                                             <i>Phascum cuspidatum</i>
                                               <i>Phascum cuspidatum var. americanum</i>
                                               <i>Phascum cuspidatum var. henricii</i>
                                               <i>Phascum cuspidatum var. piliferum</i>
                                               <i>Phascum cuspidatum var. schreberianum</i>
                                             <i>Phascum floerkeanum</i>
                                             <i>Phascum hyalinotrichum</i>
                                             <i>Phascum vernicosum</i>
                                             <i>Phascum vlassovii</i>
                                     <i>Plaubelia</i>
                                             <i>Plaubelia sprengelii</i>
                                               <i>Plaubelia sprengelii var. sprengelii</i>
                                               <i>Plaubelia sprengelii var. stomatodonta</i>
                                     <i>Pleurochaete</i>
                                             <i>Pleurochaete luteola</i>
                                             <i>Pleurochaete squarrosa</i>
                                     <i>Pottia</i>
                                             <i>Pottia arizonica</i>
                                               <i>Pottia arizonica var. arizonica</i>
                                               <i>Pottia arizonica var. mucronulata</i>
                                             <i>Pottia bryoides</i>
                                             <i>Pottia conica</i>
                                             <i>Pottia davalliana</i>
                                             <i>Pottia fosbergii</i>
                                             <i>Pottia heimii</i>
                                               <i>Pottia heimii var. arctica</i>
                                               <i>Pottia heimii var. obtusifolia</i>
                                             <i>Pottia intermedia</i>
                                             <i>Pottia lanceolata</i>
                                             <i>Pottia latifolia</i>
                                               <i>Pottia latifolia var. pilifera</i>
                                             <i>Pottia minutula</i>
                                             <i>Pottia nevadensis</i>
                                             <i>Pottia obtusifolia</i>
                                             <i>Pottia randii</i>
                                             <i>Pottia starkeana</i>
                                             <i>Pottia stevensii</i>
                                             <i>Pottia texana</i>
                                             <i>Pottia truncata</i>
                                               <i>Pottia truncata var. major</i>
                                               <i>Pottia truncata var. truncata</i>
                                             <i>Pottia truncatula</i>
                                             <i>Pottia wilsonii</i>
                                     <i>Pottiopsis</i>
                                             <i>Pottiopsis sweetii</i>
                                     <i>Pseudocrossidium</i>
                                             <i>Pseudocrossidium aureum</i>
                                             <i>Pseudocrossidium crinitum</i>
                                             <i>Pseudocrossidium hornschuchianum</i>
                                             <i>Pseudocrossidium obtusulum</i>
                                             <i>Pseudocrossidium replicatum</i>
                                                   [Barbula replicata]
                                             <i>Pseudocrossidium revolutum</i>
                                               <i>Pseudocrossidium revolutum var. obtusulum</i>
                                     <i>Pseudosymblepharis</i>
                                             <i>Pseudosymblepharis schimperiana</i>
                                     <i>Pterygoneurum</i>
                                             <i>Pterygoneurum arcticum</i>
                                             <i>Pterygoneurum californicum</i>
                                             <i>Pterygoneurum kozlovii</i>
                                             <i>Pterygoneurum lamellatum</i>
                                             <i>Pterygoneurum ovatum</i>
                                             <i>Pterygoneurum smardaeanum</i>
                                             <i>Pterygoneurum subsessile</i>
                                               <i>Pterygoneurum subsessile var. henricii</i>
                                               <i>Pterygoneurum subsessile var. kieneri</i>
                                               <i>Pterygoneurum subsessile var. subsessile</i>
                                     <i>Rhexophyllum</i>
                                             <i>Rhexophyllum subnigrum</i>
                                     <i>Scopelophila</i>
                                             <i>Scopelophila cataractae</i>
                                             <i>Scopelophila latifolia</i>
                                             <i>Scopelophila ligulata</i>
                                             <i>Scopelophila lingulata</i>
                                     <i>Stegonia</i>
                                             <i>Stegonia hyalinotricha</i>
                                             <i>Stegonia latifolia</i>
                                               <i>Stegonia latifolia var. latifolia</i>
                                               <i>Stegonia latifolia var. pilifera</i>
                                             <i>Stegonia pilifera</i>
                                     <i>Streblotrichum</i>
                                             <i>Streblotrichum convolutum</i>
                                     <i>Syntrichia</i>
                                             <i>Syntrichia agraria</i>
                                             <i>Syntrichia ammonsiana</i>
                                             <i>Syntrichia amphidiacea</i>
                                             <i>Syntrichia bartramii</i>
                                             <i>Syntrichia cainii</i>
                                             <i>Syntrichia calcicola</i>
                                             <i>Syntrichia caninervis</i>
                                             <i>Syntrichia chisosa</i>
                                             <i>Syntrichia fragilis</i>
                                             <i>Syntrichia intermedia</i>
                                             <i>Syntrichia laevipila</i>
                                             <i>Syntrichia latifolia</i>
                                             <i>Syntrichia montana</i>
                                             <i>Syntrichia norvegica</i>
                                             <i>Syntrichia obtusissima</i>
                                             <i>Syntrichia pagorum</i>
                                             <i>Syntrichia papillosa</i>
                                             <i>Syntrichia papillosissima</i>
                                             <i>Syntrichia princeps</i>
                                             <i>Syntrichia ruralis</i>
                                             <i>Syntrichia sinensis</i>
                                             <i>Syntrichia virescens</i>
                                     <i>Timmiella</i>
                                             <i>Timmiella anomala</i>
                                             <i>Timmiella crassinervis</i>
                                             <i>Timmiella flexiseta</i>
                                               <i>Timmiella flexiseta var. vancouveriensis</i>
                                     <i>Tortella</i>
                                             <i>Tortella alpicola</i>
                                             <i>Tortella arctica</i>
                                             <i>Tortella caespitosa</i>
                                             <i>Tortella flavovirens</i>
                                                   [Trichostomum flavovirens]
                                             <i>Tortella fragilis</i>
                                             <i>Tortella humilis</i>
                                                   [Barbula caespitosa]
                                             <i>Tortella inclinata</i>
                                               <i>Tortella inclinata var. densa</i>
                                               <i>Tortella inclinata var. inclinata</i>
                                             <i>Tortella inclinatula</i>
                                             <i>Tortella rigens</i>
                                             <i>Tortella rubripes</i>
                                             <i>Tortella tortelloides</i>
                                             <i>Tortella tortuosa</i>
                                               <i>Tortella tortuosa var. arctica</i>
                                               <i>Tortella tortuosa var. fragilifolia</i>
                                               <i>Tortella tortuosa var. tortuosa</i>
                                     <i>Tortula</i>
                                             <i>Tortula acaulon</i>
                                             <i>Tortula agraria</i>
                                             <i>Tortula alpina</i>
                                               <i>Tortula alpina var. inermis</i>
                                             <i>Tortula ammonsiana</i>
                                             <i>Tortula amnonsiana</i>
                                             <i>Tortula amphidiacea</i>
                                             <i>Tortula amplexa</i>
                                             <i>Tortula atrovirens</i>
                                             <i>Tortula aurea</i>
                                             <i>Tortula bartramii</i>
                                             <i>Tortula bistratosa</i>
                                             <i>Tortula bolanderi</i>
                                             <i>Tortula brevipes</i>
                                             <i>Tortula cainii</i>
                                             <i>Tortula californica</i>
                                             <i>Tortula caninervis</i>
                                             <i>Tortula caroliniana</i>
                                             <i>Tortula cernua</i>
                                             <i>Tortula chisosa</i>
                                             <i>Tortula convoluta</i>
                                             <i>Tortula cuneifolia</i>
                                               <i>Tortula cuneifolia var. blissii</i>
                                             <i>Tortula deciduidentata</i>
                                             <i>Tortula desertorum</i>
                                             <i>Tortula fragilis</i>
                                             <i>Tortula guepinii</i>
                                             <i>Tortula hirsuta</i>
                                             <i>Tortula hoppeana</i>
                                             <i>Tortula inermis</i>
                                                   [Syntrichia inermis]
                                             <i>Tortula intermedia</i>
                                             <i>Tortula lacerifolia</i>
                                             <i>Tortula laevipila</i>
                                               <i>Tortula laevipila var. laevipila</i>
                                               <i>Tortula laevipila var. meridionalis</i>
                                               <i>Tortula laevipila var. pagorum</i>
                                               <i>Tortula laevipila var. propagulifera</i>
                                               <i>Tortula laevipila var. wachteri</i>
                                             <i>Tortula lanceola</i>
                                             <i>Tortula latifolia</i>
                                             <i>Tortula laureri</i>
                                             <i>Tortula leucostoma</i>
                                             <i>Tortula modica</i>
                                             <i>Tortula mucronifolia</i>
                                             <i>Tortula muralis</i>
                                                   [Desmatodon muralis]
                                             <i>Tortula nevadensis</i>
                                             <i>Tortula norvegica</i>
                                             <i>Tortula obtusifolia</i>
                                                   [Desmatodon arenaceus]
                                             <i>Tortula obtusissima</i>
                                             <i>Tortula pagorum</i>
                                             <i>Tortula papillosa</i>
                                             <i>Tortula papillosissima</i>
                                             <i>Tortula phaea</i>
                                             <i>Tortula plinthobia</i>
                                             <i>Tortula porteri</i>
                                             <i>Tortula princeps</i>
                                             <i>Tortula propagulosa</i>
                                             <i>Tortula propogulosa</i>
                                             <i>Tortula protobryoides</i>
                                             <i>Tortula reflexa</i>
                                             <i>Tortula rhizophylla</i>
                                             <i>Tortula ruraliformis</i>
                                             <i>Tortula ruralis</i>
                                               <i>Tortula ruralis var. crinita</i>
                                               <i>Tortula ruralis var. hirsuta</i>
                                             <i>Tortula scotteri</i>
                                             <i>Tortula sinensis</i>
                                             <i>Tortula stanfordensis</i>
                                             <i>Tortula subobliqua</i>
                                             <i>Tortula subulata</i>
                                               <i>Tortula subulata var. angustata</i>
                                             <i>Tortula systylia</i>
                                             <i>Tortula truncata</i>
                                             <i>Tortula unguiculata</i>
                                             <i>Tortula vectensis</i>
                                             <i>Tortula virescens</i>
                                             <i>Tortula williamsii</i>
                                     <i>Trichostomopsis</i>
                                             <i>Trichostomopsis australasiae</i>
                                               <i>Trichostomopsis australasiae var. umbrosus</i>
                                             <i>Trichostomopsis brevifolia</i>
                                             <i>Trichostomopsis crispifolia</i>
                                             <i>Trichostomopsis diaphanobasis</i>
                                             <i>Trichostomopsis fayae</i>
                                             <i>Trichostomopsis umbrosus</i>
                                     <i>Trichostomum</i>
                                             <i>Trichostomum arcticum</i>
                                             <i>Trichostomum brachydontium</i>
                                                   [Trichostomum brachydontium subsp. mutabile]
                                             <i>Trichostomum crispulum</i>
                                               <i>Trichostomum crispulum var. cucullatum</i>
                                             <i>Trichostomum cuspidatissimum</i>
                                             <i>Trichostomum cylindricum</i>
                                             <i>Trichostomum jamaicense</i>
                                             <i>Trichostomum laetum</i>
                                             <i>Trichostomum molariforme</i>
                                             <i>Trichostomum mollissimum</i>
                                             <i>Trichostomum pallidum</i>
                                             <i>Trichostomum planifolium</i>
                                             <i>Trichostomum portoricense</i>
                                             <i>Trichostomum recurvifolium</i>
                                             <i>Trichostomum spirale</i>
                                             <i>Trichostomum tenuirostre</i>
                                               <i>Trichostomum tenuirostre var. gemmiparum</i>
                                               <i>Trichostomum tenuirostre var. tenuirostre</i>
                                             <i>Trichostomum vancouveriense</i>
                                     <i>Triquetrella</i>
                                             <i>Triquetrella californica</i>
                                     <i>Tuerckheimia</i>
                                             <i>Tuerckheimia angustifolia</i>
                                             <i>Tuerckheimia svihlae</i>
                                     <i>Weisiopsis</i>
                                     <i>Weissia</i>
                                             <i>Weissia andersoniana</i>
                                             <i>Weissia andrewsii</i>
                                             <i>Weissia brachycarpa</i>
                                             <i>Weissia condensa</i>
                                             <i>Weissia controversa</i>
                                               <i>Weissia controversa var. longiseta</i>
                                               <i>Weissia controversa var. wolfii</i>
                                             <i>Weissia glauca</i>
                                             <i>Weissia hedwegii</i>
                                             <i>Weissia hedwigii</i>
                                             <i>Weissia inoperculata</i>
                                             <i>Weissia jamaicensis</i>
                                             <i>Weissia ligulaefolia</i>
                                             <i>Weissia ligulifolia</i>
                                             <i>Weissia longidens</i>
                                             <i>Weissia ludoviciana</i>
                                             <i>Weissia microstoma</i>
                                             <i>Weissia muehlenbergiana</i>
                                             <i>Weissia muhlenbergiana</i>
                                                   [Astomum muhlenbergianum]
                                             <i>Weissia occidentalis</i>
                                             <i>Weissia pabstiana</i>
                                             <i>Weissia perligulata</i>
                                             <i>Weissia phascopsis</i>
                                             <i>Weissia rostellata</i>
                                               <i>Weissia rostellata var. phascoides</i>
                                             <i>Weissia sharpii</i>
                                             <i>Weissia sweetii</i>
                                             <i>Weissia tortilis</i>
                                             <i>Weissia viridula</i>
                                               <i>Weissia viridula var. australis</i>
                                               <i>Weissia viridula var. wolfii</i>