Abstract
Riccia okahandjana previously assumed to be an African endemic, is reported for the first time on the sub-continent of India. A morphological description and images of Riccia okahandjana are provided to facilitate identification.
References
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<p>Bornefeld, T. & Volk, O.H. (2002) Annotations to a collection of liverworts (Hepaticae, Marchantiales) from Omaruru District, Namibia, during summer 1995. <em>Dinteria</em> 27.</p>
<p>Brotherus, V.F. (1909) <em>In:</em> Engler & Prantl’s <em>Die Natürlichen Pflanzenfamilien</em> I (3). pp. 701–1246.</p>
<p>Crandall-Stotler, B.J., Stotler, R.E. & Long, D.G. (2009) Phylogeny and Classification of the Marchantiophyta. <em>Edinburgh Journal of Botany </em>66 (1): 155–198. https://doi.org/10.1017/S0960428609005393</p>
<p>Daniels, A.E.D. (2010) Checklist of the bryophytes of Tamil Nadu, India. <em>Archive for Bryology</em> 65: 1–117.</p>
<p>Daniels, A.E.D., Sreebha, R. &Kariyappa, K.C. (2017) The Japanese <em>Fissidens neomagofukui</em> (Bryophyta:Fissidentaceae)- new to India from the Western Ghats. <em>Lindbergia</em> 40: 45–48.</p>
<p>Frey, W. & Kürschner, H. (1988) Bryophytes of the Arabian Peninsula and Socotra. Studies in Arabian bryophytes 12. <em>Nova Hedwigia</em> 46: 37–120.</p>
<p>Frey, W. & Kürschner, H. (1991) Conspectus Bryophytorum Orientalum et Arabicorum. An annotated catalogue of the bryophytes of Southwest Asia. <em>Bryophytorum Bibliotheca</em> 39: 1–181.</p>
<p>Gupta, R. & Asthana, A.K. (2019) New report of <em>Trachyphyllum borgenii</em> (Renauld & Cardot) Broth. (Bryophyta) from India with a note on its disjunct distribution in Madagascar. <em>National Academy Science Letters </em>42: 151–154. https://doi.org/10.1007/s40009-018-0683-5</p>
<p>Iwatsuki, Z. & Suzuki, T. (2002) Three new species of <em>Fissidens </em>from Japan. <em>Journal of the Hattori Botanical Laboratory </em>92: 165–173.</p>
<p>Jovet-Ast, S. (1991) Riccia (Hépatiques, Marchantiales) d’Amériquelatine. Taxons du sousgenre Riccia. <em>Cryptogamie: Bryologie, Lichénologie</em> 12 (3): 189–370.</p>
<p>Jovet-Ast, S. (2003) <em>Riccia</em> des sous-genres <em>Riccia</em> et <em>Ricciella </em>récoltés en Inde et en Indonésie. <em>Cryptogamie Bryologie</em> 24: 209–228.</p>
<p>Linnaeus, C. (1753) <em>Species plantarum</em>, ed. 1. Laurentii Salvii, Holmiae [Stockholm], 1200 pp.</p>
<p>Long, D.G. (1987) Hepaticae and Anthocerotae of the Arabian Peninsula. Studies in Arabian bryophytes 10. <em>Nova Hedwigia</em> 45: 175–195.</p>
<p>Perold, S.M. (1991) <em>Taxonomic revision of the Ricciaceae Rchb. (Marchantiales: Hepaticae) in southern Africa.</em> Ph.D. thesis. University of Pretoria.</p>
<p>Perold, S.M. (1993) Taxonomic results of the Bryotrop Expedition to Zaïre and Rwanda. <em>Tropical Bryology </em>8: 55–68. https://doi.org/10.11646/bde.8.1.8</p>
<p>Perold, S.M. (1995) A survey of the Ricciaceae of tropical Africa. <em>Fragmenta Floristica et Geobotanica </em>40: 53–91.</p>
<p>Perold, S.M. (1999) <em>Flora of South Africa: Hepatophyta.</em> Part 1: Marchantiopsida. Fascicle 1: Marchantiidae. Ed. O.A. Leistner. National Botanical Institute. Pretoria. South Africa. pp. 1–252.</p>
<p>Reichenbach, H.G.L. (1828) Künstler und Freunde der PflanzenweltÜberhaupt. <em>In:</em> <em>Botanik für Damen. </em>584 pp.</p>
<p>Renauld, F.F.G. & Cardot, J. (1897) <em>Prodrome de la Flore Bryologique de Madagascar des Mascareignes et des Comores. </em>Imprimerie de Monaco.</p>
<p>Singh, S.K. (2014) An appraisal of genus <em>Riccia</em> in India with a note on diversity and distribution of species. <em>International Journal of Sustainable Water and Environmental Systems</em> 6 (1): 35–43.</p>
<p>Singh, S.K., Bag, A.K. & Bhattacharya, S.G. (2010) <em>Riccia </em>(Hepaticae: Ricciaceae) of West Bengal. <em>Taiwania</em> 55 (2): 99–109.</p>
<p>Stephani, F (1917) <em>Species Hepaticarum</em>. Vol. 5 Georg & Cie. Geneva. Switzerland.</p>
<p>Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp S, Kusber, W.H., Li, D.Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) ‘International Code of Nomenclature for algae, fungi, and plants(Shenzhen Code)adopted by the Nineteenth International Botanical Congress’, Shenzhen, PR China, July 2017. <em>Regnum Vegetabile </em>159. Koeltz Botanical Books: Glashütten, Germany. https://doi.org/10.12705/Code.2018</p>
<p>Udar, R. & Singh, D.K. (1979) <em>Notothylas dissecta</em>, a hornwort new to India. <em>The Bryologist</em> 82: 625–628. https://doi.org/10.2307/3242010</p>
<p>Asthana, A.K. & Srivastava, P. (2020) <em>Riccia boliviensis </em>Jovet-Ast, New to Asia from India with Disjunct Distribution Beyond South America. <em>National Academy Science Letters</em> 44: 155–159. https://doi.org/10.1007/s40009-020-00957-5</p>
<p>Bischler, H. & Jovet-Ast, S. (1981) The biological significance of morphological characters in Marchantiales (Hepaticae). <em>The Bryologist</em> 84: 208–215.</p>
<p>Bornefeld, T. & Volk, O.H. (2002) Annotations to a collection of liverworts (Hepaticae, Marchantiales) from Omaruru District, Namibia, during summer 1995. <em>Dinteria</em> 27.</p>
<p>Brotherus, V.F. (1909) <em>In:</em> Engler & Prantl’s <em>Die Natürlichen Pflanzenfamilien</em> I (3). pp. 701–1246.</p>
<p>Crandall-Stotler, B.J., Stotler, R.E. & Long, D.G. (2009) Phylogeny and Classification of the Marchantiophyta. <em>Edinburgh Journal of Botany </em>66 (1): 155–198. https://doi.org/10.1017/S0960428609005393</p>
<p>Daniels, A.E.D. (2010) Checklist of the bryophytes of Tamil Nadu, India. <em>Archive for Bryology</em> 65: 1–117.</p>
<p>Daniels, A.E.D., Sreebha, R. &Kariyappa, K.C. (2017) The Japanese <em>Fissidens neomagofukui</em> (Bryophyta:Fissidentaceae)- new to India from the Western Ghats. <em>Lindbergia</em> 40: 45–48.</p>
<p>Frey, W. & Kürschner, H. (1988) Bryophytes of the Arabian Peninsula and Socotra. Studies in Arabian bryophytes 12. <em>Nova Hedwigia</em> 46: 37–120.</p>
<p>Frey, W. & Kürschner, H. (1991) Conspectus Bryophytorum Orientalum et Arabicorum. An annotated catalogue of the bryophytes of Southwest Asia. <em>Bryophytorum Bibliotheca</em> 39: 1–181.</p>
<p>Gupta, R. & Asthana, A.K. (2019) New report of <em>Trachyphyllum borgenii</em> (Renauld & Cardot) Broth. (Bryophyta) from India with a note on its disjunct distribution in Madagascar. <em>National Academy Science Letters </em>42: 151–154. https://doi.org/10.1007/s40009-018-0683-5</p>
<p>Iwatsuki, Z. & Suzuki, T. (2002) Three new species of <em>Fissidens </em>from Japan. <em>Journal of the Hattori Botanical Laboratory </em>92: 165–173.</p>
<p>Jovet-Ast, S. (1991) Riccia (Hépatiques, Marchantiales) d’Amériquelatine. Taxons du sousgenre Riccia. <em>Cryptogamie: Bryologie, Lichénologie</em> 12 (3): 189–370.</p>
<p>Jovet-Ast, S. (2003) <em>Riccia</em> des sous-genres <em>Riccia</em> et <em>Ricciella </em>récoltés en Inde et en Indonésie. <em>Cryptogamie Bryologie</em> 24: 209–228.</p>
<p>Linnaeus, C. (1753) <em>Species plantarum</em>, ed. 1. Laurentii Salvii, Holmiae [Stockholm], 1200 pp.</p>
<p>Long, D.G. (1987) Hepaticae and Anthocerotae of the Arabian Peninsula. Studies in Arabian bryophytes 10. <em>Nova Hedwigia</em> 45: 175–195.</p>
<p>Perold, S.M. (1991) <em>Taxonomic revision of the Ricciaceae Rchb. (Marchantiales: Hepaticae) in southern Africa.</em> Ph.D. thesis. University of Pretoria.</p>
<p>Perold, S.M. (1993) Taxonomic results of the Bryotrop Expedition to Zaïre and Rwanda. <em>Tropical Bryology </em>8: 55–68. https://doi.org/10.11646/bde.8.1.8</p>
<p>Perold, S.M. (1995) A survey of the Ricciaceae of tropical Africa. <em>Fragmenta Floristica et Geobotanica </em>40: 53–91.</p>
<p>Perold, S.M. (1999) <em>Flora of South Africa: Hepatophyta.</em> Part 1: Marchantiopsida. Fascicle 1: Marchantiidae. Ed. O.A. Leistner. National Botanical Institute. Pretoria. South Africa. pp. 1–252.</p>
<p>Reichenbach, H.G.L. (1828) Künstler und Freunde der PflanzenweltÜberhaupt. <em>In:</em> <em>Botanik für Damen. </em>584 pp.</p>
<p>Renauld, F.F.G. & Cardot, J. (1897) <em>Prodrome de la Flore Bryologique de Madagascar des Mascareignes et des Comores. </em>Imprimerie de Monaco.</p>
<p>Singh, S.K. (2014) An appraisal of genus <em>Riccia</em> in India with a note on diversity and distribution of species. <em>International Journal of Sustainable Water and Environmental Systems</em> 6 (1): 35–43.</p>
<p>Singh, S.K., Bag, A.K. & Bhattacharya, S.G. (2010) <em>Riccia </em>(Hepaticae: Ricciaceae) of West Bengal. <em>Taiwania</em> 55 (2): 99–109.</p>
<p>Stephani, F (1917) <em>Species Hepaticarum</em>. Vol. 5 Georg & Cie. Geneva. Switzerland.</p>
<p>Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp S, Kusber, W.H., Li, D.Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (Eds.) (2018) ‘International Code of Nomenclature for algae, fungi, and plants(Shenzhen Code)adopted by the Nineteenth International Botanical Congress’, Shenzhen, PR China, July 2017. <em>Regnum Vegetabile </em>159. Koeltz Botanical Books: Glashütten, Germany. https://doi.org/10.12705/Code.2018</p>
<p>Udar, R. & Singh, D.K. (1979) <em>Notothylas dissecta</em>, a hornwort new to India. <em>The Bryologist</em> 82: 625–628. https://doi.org/10.2307/3242010</p>