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North American H&A Names A very tentative and preliminary list of North American liverworts and hornworts, doubtless containing errors and omissions, but forming a basis for updating the spreadsheet of recognized genera and numbers of species, November 2010. Liverworts Blasiales Blasiaceae Blasia L. Blasia pusilla L. Fossombroniales Calyculariaceae Calycularia Mitt. Calycularia crispula Mitt. Calycularia laxa Lindb. & Arnell Fossombroniaceae Fossombronia Raddi Fossombronia alaskana Steere & Inoue Fossombronia brasiliensis Steph. Fossombronia cristula Austin Fossombronia foveolata Lindb. Fossombronia hispidissima Steph. Fossombronia lamellata Steph. Fossombronia macounii Austin Fossombronia marshii J. R. Bray & Stotler Fossombronia pusilla (L.) Dumort. Fossombronia longiseta (Austin) Austin Note: Fossombronia longiseta was based on a mixture of material belonging to three different species of Fossombronia; Schuster (1992a p. 395) lectotypified F. longiseta with the specimen of Austin, Hepaticae Boreali-Americani 118 at H. An SEM of one spore from this specimen was previously published by Scott and Pike (1988 fig. 19) and it is clearly F. pusilla. It is not at all clear why Doyle and Stotler (2006) apply the name to F. hispidissima. Fossombronia texana Lindb. Fossombronia wondraczekii (Corda) Dumort. Fossombronia zygospora R.M. Schust. Petalophyllum Nees & Gottsche ex Lehm. Petalophyllum ralfsii (Wilson) Nees & Gottsche ex Lehm. Moerckiaceae Moerckia Gottsche Moerckia blyttii (Moerch) Brockm. Moerckia hibernica (Hook.) Gottsche Pallaviciniaceae Pallavicinia A. Gray, nom. cons. Pallavicinia lyellii (Hook.) Carruth. Pelliaceae Pellia Raddi, nom. cons. Pellia appalachiana R.M. Schust. (pro hybr.) Pellia endiviifolia (Dicks.) Dumort. Pellia endiviifolia (Dicks.) Dumort. ssp. alpicola R.M. Schust. Pellia endiviifolia (Dicks.) Dumort. ssp. endiviifolia Pellia epiphylla (L.) Corda Pellia megaspora R.M. Schust. Pellia neesiana (Gottsche) Limpr. Pellia neesiana (Gottsche) Limpr. ssp. columbiana (Krajina & Brayshaw) R.M. Schust. Pellia neesiana (Gottsche) Limpr. ssp. neesiana Haplomitriales Haplomitriaceae Haplomitrium Nees, nom. cons. Haplomitrium hookeri (Sm.) Nees Haplomitrium hookeri (Sm.) Nees var. hookeri Jungermanniales Acrobolbaceae Acrobolbus Nees Acrobolbus ciliatus (Mitt.) Schiffn. Antheliaceae Anthelia (Dumort.) Dumort. Anthelia julacea (L.) Dumort. Anthelia juratzkana (Limpr.) Trevis. Arnelliaceae Arnellia Lindb. Arnellia fennica (Gottsche) Lindb. Calypogejaceae Calypogeia Raddi, nom. cons. Calypogeia fissa (L.) Raddi Calypogeia fissa (L.) Raddi ssp. fissa Calypogeia fissa (L.) Raddi ssp. neogaea R.M. Schust. Calypogeia integristipula Steph. Calypogeia muelleriana (Schiffn.) Müll. Frib. Calypogeia muelleriana (Schiffn.) Müll. Frib. ssp. blomquistii R.M. Schust. Calypogeia muelleriana (Schiffn.) Müll. Frib. ssp. muelleriana Calypogeia neesiana (C. Massal. & Carestia) Müll. Frib. Calypogeia peruviana Nees & Mont. Calypogeia sphagnicola (Arnell & J. Perss.) Warnst. & Loeske Calypogeia suecica (Arnell & J. Perss.) Müll. Frib. Calypogeia sullivantii Austin Eocalypogeia (R.M. Schust.) R.M. Schust. Fragmenta Floristica et Geobotanica 40: 861. 1995. Eocalypogeia schusterana (S. Hatt. & Mizut.) R.M. Schust. Metacalypogeia schusterana S. Hatt. & Mizut. Miscellanea Bryologica et Lichenologica 4: 121. 1967. Cephaloziaceae Cephalozia (Dumort. emend. Schiffn.) Dumort. Cephalozia affinis Lindb. ex Steph. Cephalozia bicuspidata (L.) Dumort. Cephalozia bicuspidata (L.) Dumort. ssp. ambigua (C. Massal.) R.M. Schust. Cephalozia bicuspidata (L.) Dumort. ssp. bicuspidata Cephalozia bicuspidata (L.) Dumort. ssp. lammersiana (Huebener) R.M. Schust. Cephalozia bicuspidata (L.) Dumort. ssp. otaruensis (Steph.) S. Hatt. Cephalozia catenulata (Huebener) Lindb. Cephalozia connivens (Dicks.) Lindb. Cephalozia connivens (Dicks.) Lindb. var. bifida R.M. Schust. Cephalozia connivens (Dicks.) Lindb. var. compacta (Warnst.) Nichols Cephalozia connivens (Dicks.) Lindb. var. connivens Cephalozia lacinulata J.B. Jack ex Spruce Cephalozia leucantha Spruce Cephalozia loitlesbergeri Schiffn. Cephalozia lunulifolia (Dumort.) Dumort. Cephalozia macounii (Austin) Austin Cephalozia macrostachya Kaal. Cephalozia macrostachya Kaal. ssp. australis R.M. Schust. Cephalozia macrostachya Kaal. ssp. macrostachya Cephalozia pachycaulis R.M. Schust. Cephalozia pleniceps (Austin) Lindb. Cephalozia pleniceps (Austin) Lindb. var. caroliniana R.M. Schust. Cephalozia pleniceps (Austin) Lindb. var. pleniceps Cephalozia pleniceps (Austin) Lindb. var. sphagnorum (C. Massal.) Jörg. Cladopodiella H. Buch Cladopodiella fluitans (Nees) H. Buch Cladopodiella francisci (Hook.) H. Buch ex Jörg. Hygrobiella Spruce Hygrobiella laxifolia (Hook.) Spruce Nowellia Mitt. Nowellia curvifolia (Dicks.) Mitt. Odontoschisma (Dumort.) Dumort. Odontoschisma denudatum (Mart.) Dumort. Odontoschisma denudatum (Mart.) Dumort. var. denudatum Odontoschisma denudatum (Mart.) Dumort. var. laevissima R.M. Schust. Odontoschisma elongatum (Lindb.) A. Evans Odontoschisma gibbsiae A. Evans Odontoschisma macounii (Austin) Underw. Odontoschisma prostratum (Sw.) Trevis. Odontoschisma sphagni (Dicks.) Dumort. Pleurocladula Grolle Pleurocladula albescens (Hook.) Grolle Schofieldia J.D. Godfrey Schofieldia monticola J.D. Godfrey Cephaloziellaceae Cephaloziella (Spruce) Schiffn., nom. cons. Cephaloziella arctica Bryhn & Douin Cephaloziella arctica Bryhn & Douin ssp. arctica Cephaloziella arctogena (R.M. Schust.) Konst. Cephaloziella aspericaulis Jörg. Cephaloziella biloba (Lindenb.) Müll. Frib. Cephaloziella brinkmani Douin Cephaloziella dentata (Raddi) Mig. Cephaloziella divaricata (Sm.) Schiffn. Cephaloziella divaricata (Sm.) Schiffn. var. divaricata Cephaloziella divaricata (Sm.) Schiffn. var. polystratosa (R.M. Schust. & Damsh.) Potemk. Cephaloziella divaricata (Sm.) Schiffn. var. scabra (M. Howe) Schljakov Cephaloziella elachista (J.B. Jack) Schiffn. Cephaloziella elegans Heeg Cephaloziella grimsulana (J.B. Jack) Lacout. Cephaloziella grimsulana (J.B. Jack) Lacout. var. angustiloba (Douin) Jörg. Cephaloziella grimsulana (J.B. Jack) Lacout. var. grimsulana Cephaloziella hampeana (Nees) Schiffn. Cephaloziella hyalina Douin Cephaloziella integerrima (Lindb.) Warnst. Cephaloziella mammillifera R.M. Schust. & Damsh. Cephaloziella massalongi (Spruce) Müll. Frib. Cephaloziella minima (Austin) Douin Cephaloziella obtusilobula R.M. Schust. Cephaloziella patulifolia (Steph.) Douin Cephaloziella phyllacantha (C. Massal. & Carestia) Müll. Frib. Cephaloziella rappii Douin Cephaloziella rubella (Nees) Warnst. Cephaloziella rubella (Nees) Warnst. ssp. arctogena (Heeg) R.M. Schust. Cephaloziella rubella (Nees) Warnst. ssp. rubella Cephaloziella rubella (Nees) Warnst. ssp. rubella var. bifida (Schreb. ex Schmidel) Douin Cephaloziella rubella (Nees) Warnst. ssp. rubella var. elgans (Austin) Müll. Frib. Cephaloziella rubella (Nees) Warnst. ssp. rubella var. pulchella (C.E.O. Jensen) R.M. Schust. Cephaloziella rubella (Nees) Warnst. ssp. rubella var. rubella Cephaloziella rubella (Nees) Warnst. ssp. rubella var. sullivantii (Austin) Müll. Frib. Cephaloziella spinicaulis Douin Cephaloziella spinigera (Lindb.) Jörg. Cephaloziella stellulifera (Taylor) Schiffn. Cephaloziella turneri (Hook.) Müll. Frib. Cephaloziella uncinata R.M. Schust. Cephaloziella uncinata R.M. Schust. var. brevigyna R.M. Schust. & Damsh. Cephaloziella uncinata R.M. Schust. var. sphagnicola R.M. Schust. Cephaloziella uncinata R.M. Schust. var. uncinata Cylindrocolea R.M. Schust. Cylindrocolea andersoni R.M. Schust. Cylindrocolea obliqua (Douin) R.M. Schust. Cylindrocolea rhizantha (Mont.) R.M. Schust. Chonecoleaceae Chonecolea Grolle Chonecolea doellingeri (Nees) Grolle Frullaniaceae Frullania Raddi Frullania appalachiana R.M. Schust. Frullania arietina Taylor Frullania asagrayana Mont. Frullania bolanderi Austin Frullania brittoniae A. Evans Frullania californica (Austin) A. Evans Frullania catalinae A. Evans Frullania chilcootiensis Steph. Frullania cobrensis Gottsche ex Steph. Frullania cucullata Lindenb. & Gottsche Frullania donnellii Austin Frullania eboracensis Gottsche Frullania ericoides (Nees) Nees Frullania franciscana M. Howe Frullania gibbosa Nees Frullania gymnotis Nees & Mont. Frullania hattoriana J.D. Godfrey & G. Godfrey Frullania inflata Gottsche Frullania inflata Gottsche var. communis R.M. Schust. Frullania inflata Gottsche var. inflata Frullania jackii Gottsche Frullania kunzei Lehm. & Lindenb. Frullania kunzei Lehm. & Lindenb. var. kunzei Frullania kunzei Lehm. & Lindenb. var. maritima R.M. Schust. Frullania nisquallensis Sull. Frullania oakesiana Austin Frullania obcordata (Lehm. & Lindenb.) Lehm. & Lindenb. Frullania plana Sull. Frullania riojaneirensis (Raddi) Spruce Frullania riparia Hampe ex Lehm. Frullania sabaliana R.M. Schust. Frullania selwyniana Pearson Frullania stylifera (R.M. Schust.) R.M. Schust. Frullania taxodiocola R.M. Schust. Gyrothyraceae Gyrothyra M. Howe Gyrothyra underwoodiana M. Howe Gymnomitriaceae Apomarsupella R.M. Schust. J. Hattori Bot. Lab. 80: 79. 1996. Apomarsupella revoluta (Nees) R.M. Schust. J. Hattori Bot. Lab. 80: 82. 1996. Apomarsupella revoluta subsp. novoguineanensis R.M. Schust. J. Hattori Bot. Lab. 80: 90. f. 15- -16. 1996. Gymnomitrion Corda, nom. cons. Gymnomitrium Corda emend Mitt. Gymnomitrion apiculatum (Schiffn.) Müll. Frib. Gymnomitrion concinnatum (Lightf.) Corda Gymnomitrion corallioides Nees Gymnomitrion laceratum (Steph.) Horik. Gymnomitrion mucrophorum R.M. Schust. Gymnomitrion obtusum (Lindb.) Pears. Gymnomitrion pacificum
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