Riccardia aberrans (Steph.) Gradst. species accepted

Riccardia aequicellularis (Steph.) Hewson species accepted

Riccardia aequitexta (Steph.) E.A. Br. species accepted

Riccardia aeruginosa Furuki species accepted

Riccardia agumana Hewson species accepted

Riccardia alba (Colenso) E.A. Br. species accepted

Riccardia albomarginata (Steph.) Schiffn. species accepted

Riccardia alcicornis (Hook. f. & Taylor) Trevis. species accepted

Riccardia amnicola Hässel species accepted

Riccardia angustata Horik. species accepted

Riccardia angustealata (Steph.) Hewson species accepted

Riccardia angustissima (Steph.) H.A. Mill. species accepted

Riccardia arcuata Furuki species accepted

Riccardia argentolimbata Hewson & Grolle species accepted

Riccardia asperulata R.M. Schust. species accepted

Riccardia attenuata (Steph.) H.A. Mill. species accepted

Riccardia australis (Lehm.) Hewson species accepted

Riccardia autoica (Steph.) A. Evans species accepted

Riccardia baldwinii (Steph.) H.A. Mill. species accepted

Riccardia barbiflora (Steph.) Piippo species accepted

Riccardia baumannii Hürl. species accepted

Riccardia bipinnatifida (Colenso) Hewson species accepted

Riccardia bongeriana Hewson species accepted

Riccardia breviala E.A. Br. species accepted

Riccardia breviramosa (Steph.) A. Evans species accepted

Riccardia brunnea (Steph.) S. Hatt. species accepted

Riccardia calva (Schiffn.) A. Evans species accepted

Riccardia cardotii (Steph.) S.C. Srivast. & Udar species accepted

Riccardia cataractarum (Spruce) Schiffn. species accepted

Riccardia chamedryfolia (With.) Grolle species accepted

Riccardia changbaishanensis C. Gao species accepted

Riccardia chinensis C. Gao species accepted

Riccardia ciliolata (Spruce) Horik. species accepted

Riccardia cochleata (Hook. f. & Taylor) Kuntze species accepted

Riccardia colensoi (Steph.) W. Martin species accepted

Riccardia comata (Steph.) H.A. Mill. species accepted

Riccardia comptonii (Pearson) H.A. Mill. species accepted

Riccardia conimitra (Steph.) A. Evans species accepted

Riccardia corralensis (Steph.) A. Evans species accepted

Riccardia crassa (Schwägr.) C. Massal. species accepted

Riccardia crassicrispa (Steph.) A. Evans species accepted

Riccardia crassiretis Schiffn. species accepted

Riccardia crenuliformis R.M. Schust. species accepted

Riccardia deguchii Furuki & K.T. Yong species accepted

Riccardia densiramea (Steph.) S. Hatt. species accepted

Riccardia devexa Schiffn. species accepted

Riccardia diderma Hässel species accepted

Riccardia digitiloba (Spruce) Pagán species accepted

Riccardia dilatata (Spruce) Schäf.-Verw. & Pócs species accepted

Riccardia diminuta Schiffn. species accepted

Riccardia diversiflora A. Evans species accepted

Riccardia duriuscula Hässel species accepted

Riccardia elegans (Steph.) Hürl. species accepted

Riccardia elisabethae Thouvenot & Reeb species accepted

Riccardia emarginata (Steph.) K.G. Hell species accepted

Riccardia eriocaula (Hook.) Besch. & C. Massal. species accepted

Riccardia falsifloribunda Hässel species accepted

Riccardia fastigiata (Lehm.) Trevis. species accepted

Riccardia filicina (Colenso) E.A. Hodgs. species accepted

Riccardia flaccida (Steph.) S. Hatt. species accepted

Riccardia flaccidissima Schiffn. species accepted

Riccardia flagellaris (A. Gepp) H.A. Mill. species accepted

Riccardia flagellifrons C. Gao species accepted

Riccardia fleischeri (Steph.) H.A. Mill. species accepted

Riccardia floribunda (Steph.) A. Evans species accepted

Riccardia fluvigena Hässel species accepted

Riccardia fruticosa (Steph.) Furuki species accepted

Riccardia fucoidea (Sw.) C. Massal. species accepted

Riccardia fuegiensis C. Massal. species accepted

Riccardia furtiva E.A. Br. & Braggins species accepted

Riccardia fuscobrunnea (Steph.) A. Evans species accepted

Riccardia geniana Hewson species accepted

Riccardia georgiensis (Steph.) Hässel species accepted

Riccardia glauca Furuki species accepted

Riccardia glaziovii (Spruce) Meenks species accepted

Riccardia gogolensis (Steph.) Hewson species accepted

Riccardia gracilis (Steph.) R.M. Schust. species accepted

Riccardia graeffei (Steph.) Hewson species accepted

Riccardia grandiflora (Steph.) H.A. Mill. species accepted

Riccardia grollei Furuki species accepted

Riccardia grossitexta (Steph.) Furuki species accepted

Riccardia gunniana (Steph.) H.A. Mill. species accepted

Riccardia hamatiflora (Steph.) H.A. Mill. species accepted

Riccardia hans-meyeri (Steph.) Meenks & C. De Jong species accepted

Riccardia hattorii Furuki species accepted

Riccardia hawaica (Steph.) H.A. Mill. species accepted

Riccardia hebridensis (Steph.) H.A. Mill. species accepted

Riccardia heteroclada Schiffn. species accepted

Riccardia hirtiflora (Steph.) Schiffn. species accepted

Riccardia humilis (Gottsche) O. Yano species accepted

Riccardia hyalina (Steph.) H.A. Mill. species accepted

Riccardia hydra Hürl. species accepted

Riccardia hymenophylloides Schiffn. species accepted

Riccardia hymenophytoides (Spruce) Meenks species accepted

Riccardia ibana Hewson species accepted

Riccardia inconspicua (Steph.) Reeb & Bardat species accepted

Riccardia incurvata Lindb. species accepted

Riccardia innovans (Steph.) Pagán species accepted

Riccardia insularis Schiffn. species accepted

Riccardia intercellula E.A. Br. species accepted

Riccardia jackii Schiffn. species accepted

Riccardia jugata R.M. Schust. species accepted

Riccardia karstenii (Steph.) Schiffn. species accepted

Riccardia kodamae Mizut. & S. Hatt. species accepted

Riccardia koonwarriensis Drinnan & T.C. Chambers species accepted

Riccardia laticostata (Spruce) Schiffn. species accepted

Riccardia latifrondoides Schiffn. species accepted

Riccardia latifrons (Lindb.) Lindb. species accepted

Riccardia leptophylla (Spruce) Herzog species accepted

Riccardia leptostachya A. Evans species accepted

Riccardia leptothallus R.M. Schust. species accepted

Riccardia levieri Schiffn. species accepted

Riccardia lichenoides (Steph.) H.A. Mill. species accepted

Riccardia ligulata (Steph.) Pócs & Schäf.-Verw. species accepted

Riccardia lobulata (Colenso) E.A. Hodgs. species accepted

Riccardia loefgrenii Schiffn. species accepted

Riccardia longioleata Hässel species accepted

Riccardia longispica (Steph.) Pearson species accepted

Riccardia loriana (Steph.) H.A. Mill. species accepted

Riccardia macrantha (Pearson) H.A. Mill. species accepted

Riccardia magnicellularis Furuki species accepted

Riccardia marginata (Colenso) Pearson species accepted

Riccardia marionensis R.M. Schust. species accepted

Riccardia mejlandii S.W. Arnell species accepted

Riccardia microscopica (Nees) Kuntze species accepted

Riccardia minuta (Steph.) W. Martin species accepted

Riccardia multicorpora E.A. Br. species accepted

Riccardia multifida (L.) Gray species accepted

Riccardia multifidoides Schiffn. species accepted

Riccardia multioleata Hässel species accepted

Riccardia multispica (Steph.) S. Hatt. species accepted

Riccardia mycophora A. Evans species accepted

Riccardia nagasakiensis (Steph.) S. Hatt. species accepted

Riccardia negeri (Steph.) A. Evans species accepted

Riccardia newellana (Steph.) H.A. Mill. species accepted

Riccardia nigra (Steph.) H.A. Mill. species accepted

Riccardia nitida (Colenso) E.A. Hodgs. species accepted

Riccardia nobilis (Steph.) Schiffn. species accepted

Riccardia novoamstelodamensis Schiffn. species accepted

Riccardia obtusifrons (Steph.) H.A. Mill. species accepted

Riccardia omkaliensis Hewson species accepted

Riccardia opuntiiformis S.W. Arnell species accepted

Riccardia pallida (Spruce) Meenks & C. De Jong species accepted

Riccardia palmata (Hedw.) Carruth. species accepted

Riccardia palmatifida (Steph.) H.A. Mill. species accepted

Riccardia papulosa (Steph.) E.A. Br. species accepted

Riccardia parvula Schiffn. species accepted

Riccardia patens Hässel species accepted

Riccardia pauciramea (Steph.) H.A. Mill. species accepted

Riccardia paulensis Schiffn. species accepted

Riccardia pectinata (Austin) H.A. Mill. species accepted

Riccardia pellucida Piippo species accepted

Riccardia pembaiensis (Steph.) Hürl. species accepted

Riccardia pengagensis Hewson species accepted

Riccardia pennata E.A. Br. species accepted

Riccardia perspicua E.A. Br. species accepted

Riccardia perssonii S.C. Srivast. & Udar species accepted

Riccardia philippinensis Furuki species accepted

Riccardia pindensis Hewson species accepted

Riccardia plana (Steph.) Hürl. species accepted

Riccardia planiflora (Steph.) S. Hatt. species accepted

Riccardia plumosa (Mitt.) E.O. Campb. species accepted

Riccardia poeppigiana (Lehm. & Lindenb.) Hässel ex Meenks & C. De Jong species accepted

Riccardia polyclada (Mitt.) Hässel species accepted

Riccardia porcina (Hewson) L. Söderstr. species accepted

Riccardia portoricensis (Steph.) Pagán species accepted

Riccardia prehensilis (Hook. f. & Taylor) C. Massal. species accepted

Riccardia pumila Furuki species accepted

Riccardia punahuina (Steph.) H.A. Mill. species accepted

Riccardia ramosissima (Steph.) Grolle species accepted

Riccardia regnellii (Ångstr.) K.G. Hell species accepted

Riccardia reyesiana Meenks species accepted

Riccardia riccioides Pearson species accepted

Riccardia rigida Schiffn. species accepted

Riccardia rivularis Hässel species accepted

Riccardia robbinsii Hewson & Grolle species accepted

Riccardia robusta (Steph.) H.A. Mill. species accepted

Riccardia rockii (Steph.) H.A. Mill. species accepted

Riccardia rupicola (Steph.) Hewson species accepted

Riccardia russellii R.M. Schust. species accepted

Riccardia saccatiflora (Steph.) S.W. Arnell species accepted

Riccardia santapaui Udar & K.P. Srivast. species accepted

Riccardia saxicola Hässel species accepted

Riccardia schwaneckei (Steph.) Pagán species accepted

Riccardia singapurensis Schiffn. species accepted

Riccardia spectabilis (Steph.) A. Evans species accepted

Riccardia spegazziniana C. Massal. species accepted

Riccardia spinulifera C. Massal. species accepted

Riccardia spongiosa Furuki species accepted

Riccardia squamifera Schiffn. species accepted

Riccardia statensis Hässel species accepted

Riccardia stipatiflora (Steph.) Pagán species accepted

Riccardia stricta R.M. Schust. species accepted

Riccardia subalpina Furuki species accepted

Riccardia subantarctica R.M. Schust. ex Grolle & L. Söderstr. species accepted

Riccardia subexalata Schiffn. species accepted

Riccardia submersa (Hook. f. & Taylor) Trevis. species accepted

Riccardia subpalmata (Steph.) Hürl. species accepted

Riccardia sumatrana Schiffn. species accepted

Riccardia tamariscina (Steph.) Schiffn. species accepted

Riccardia tenax (Steph.) A. Evans species accepted

Riccardia tenella Hewson species accepted

Riccardia tenerrima (Steph.) A. Evans species accepted

Riccardia tenuis (Steph.) Schiffn. species accepted

Riccardia thaxteri A. Evans species accepted

Riccardia theliophora Hässel species accepted

Riccardia tjibodensis Schiffn. species accepted

Riccardia tristaniana S.W. Arnell species accepted

Riccardia trukensis H.A. Mill. & Bonner species accepted

Riccardia tumbareriensis Hewson species accepted

Riccardia udarii D. Singh & D.K. Singh species accepted

Riccardia upoluna (Steph.) Grolle species accepted

Riccardia valida (Steph.) J.J. Engel species accepted

Riccardia venosa (Steph.) Hürl. species accepted

Riccardia villosa (Steph.) S.C. Srivast. & Udar species accepted

Riccardia virens (Steph.) Hürl. species accepted

Riccardia vitrea Furuki species accepted

Riccardia wallisii (Steph.) Gradst. species accepted

Riccardia wettsteinii Schiffn. species accepted

Riccardia womersleyana Hewson species accepted

Riccardia xylophila Hässel species accepted

Riccardia corbierei (Steph.) Reeb & Gradst. species accepted

Riccardia martinii Reeb & Gradst. species accepted

Riccardia vohimanensis Reeb & Gradst. species accepted

Riccardia intricata (Steph.) Grolle species accepted

Riccardia nana (Hook. f. & Taylor) Trevis. species accepted

Riccardia pindaundensis Hewson species accepted

Riccardia formosensis (Steph.) Horik. species accepted

Riccardia costata (Steph.) Hürl. species accepted

Riccardia lachungensis D. Singh & D.K. Singh species accepted

Riccardia papillosa (C. Massal. & Steph.) Hässel species accepted

Riccardia umida E.A. Br. species accepted

Riccardia pallidevirens (Steph.) A. Evans species accepted

Riccardia angusticosta (Steph.) Grolle species accepted

Riccardia granulata (Steph.) A. Evans species accepted

Riccardia crenulata Schiffn. species accepted

Riccardia longiflora (Steph.) Hewson species accepted

Riccardia phleganiana Hewson species accepted

Riccardia pusilla Grolle species accepted

Riccardia tenuifrons (Steph.) Schiffn. ex O. Yano species accepted

Riccardia verticillata Gradst. & Reeb species accepted

Riccardia lillieana (Steph.) H.A. Mill. species accepted

Riccardia gaspardii Reeb & Gradst. species accepted

Riccardia browniae A. Hagborg & L. Söderstr. species accepted

Riccardia campanuliflora S.W. Arnell species accepted

Riccardia gradsteinii Pócs species accepted

Riccardia aspera (Steph.) Grolle species accepted

Riccardia hyalitricha Hässel species accepted

Riccardia elata (Steph.) Schiffn. species accepted

Riccardia macdonaldiana Hewson species accepted

Riccardia regularis (Steph.) Kuhnem. species accepted

Riccardia sikkimensis (Steph.) S.C. Srivast. & Udar species accepted

Riccardia canaliculata (Nees) Kuntze species accepted

Riccardia hypipamensis Hewson species accepted

Riccardia flavovirens Furuki species accepted

Riccardia nadeaudii (Steph.) Hürl. species accepted

Riccardia submultifida Horik. species accepted

Riccardia tahitensis (Steph.) Hürl. species accepted

Riccardia meagheri Frank Müll. species accepted

Riccardia dimorpha Glenny species accepted

Riccardia pseudodendroceros R.M. Schust. ex M.A.M. Renner species accepted