Abstract
Ramudaria is a monospecific genus well-characterized by the longitudinal, serially arranged lamelliform strips on the surface of the stem. This character seems to be unique amongst the leafy liverworts. Ramudaria lamellicaulis is so far known only from Arunachal Pradesh and Sikkim in the Eastern Himalaya, India. The species is reported here for the first time for China. The locality recorded here for China is the northernmost and highest in altitude. A description and illustrations of R. lamellicaulis based on the Chinese specimen are provided, along with a distribution map. A discussion about the status of such a morphologically remarkable genus is presented and an author citation of Ramudaria is corrected.
References
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<p>Jack, J.B. (1894) <em>Stephaniella paraphyllina </em>Jack nov. gen. hepaticarum. <em>Hedwigia</em> 33: 11–14.</p>
<p>Konstantinova, N.A. & Vilnet, A.A. (2010) [2009] New taxa and new combinations in Jungermanniales (Hepaticae). <em>Arctoa</em> 18: 65–67. https://doi.org/10.15298/arctoa.18.02</p>
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<p>Koponen, T. (1968) Generic revision of Mniaceae Mitt. (Bryophyta). <em>Annales Botanici Fennici </em>5: 117–151.</p>
<p>Loeske, L. (1907) <em>Drepanocladus</em>, eine biologische Mischgattung. <em>Hedwigia</em> 46: 300–321.</p>
<p>Mamontov, Yu.S., Vilnet, A.A. & Schäfer-Verwimp, A. (2021) On the taxonomy of the subfamilies Pallavicinioideae and Podomitrioideae of the family Pallaviciniaceae (Marchantiophyta). <em>Arctoa</em> 30: 159–169. https://doi.org/10.15298/arctoa.30.17</p>
<p>Mitten, W. (1859) Musci Indiae Orientalis, an enumeration of the mosses of the East Indies. <em>Journal of the Proceedings of the Linnean Society, Botany, </em>Suppl<em>.</em> 1: 1–171. https://doi.org/10.5962/bhl.title.156377</p>
<p>Mitten, W. (1861)[1860] Hepaticae Indiae Orientalis. <em>Journal of the Proceedings of the Linnean Society. Botany</em> 5 (18): 89–128. https://doi.org/10.1111/j.1095-8312.1860.tb01045.x</p>
<p>Mitten, W. (1865) [1864] The “Bryologia” of the survey of the 48th parallel of latitude. <em>Journal of the Proceedings of the Linnean Society. Botany</em> 8 (29): 12–55. https://doi.org/10.1111/j.1095-8312.1864.tb01071.x</p>
<p>Nees, C.G. (1836) <em>Naturgeschichte der Europäischen Lebermoose</em>, vol. 2. August Rücker, Berlin, 499 pp.</p>
<p>Nicholson, W.E., Herzog, T. & Verdoorn, F. (1930) Hepaticae. <em>In</em>: Handel-Mazzetti, H.M. (Ed.) <em>Symbolae Sinicae</em>, Part 5. Hepaticae. Springer Verlag, Berlin, pp. 1–60.</p>
<p>Patzak, S.D., Renner, M.A.M., Schäfer-Verwimp, A., Feldberg, K., Heslewood, M.M., Peralta, D.F., de Souza, A.M., Schneider, H. & Heinrichs, J. (2016) A phylogeny of Lophocoleaceae-Plagiochilaceae-Brevianthaceae and a revised classification of Plagiochilaceae. <em>Organisms Diversity Evolution</em> 16: 481–495. https://doi.org/10.1007/s13127-015-0258-y</p>
<p>Rabeau, L., Gradstein, S.R., Dubuisson, J.-Y., Nebel, M., Quandt, D. & Reeb, C. (2017) New insights into the phylogeny and relationships within the worldwide genus <em>Riccardia</em> (Aneuraceae, Marchantiophytina). <em>European Journal of Taxonomy </em>273: 1–26. https://doi.org/10.5852/ejt.2017.273</p>
<p>Schiffner, V. (1899) Beiträge zur Lebermoosflora von Bhutan (Ost-Indien). <em>Österreichische Botanische Zeitschrift</em> 49: 127–132. https://doi.org/10.1007/BF01794513</p>
<p>Schiffner, V.F. (1910) Über die Gattungen <em>Chiloscyphus</em> und <em>Heteroscyphus</em> n. gen. <em>Öesterreichische Botanische Zeitschrift</em> 60: 169–173. https://doi.org/10.1007/BF01631854</p>
<p>Schuster, R.M. (1969) <em>The Hepaticae and Anthocerotae of North America</em> 2: xiii + 1062 pp. Columbia University Press, New York.</p>
<p>Schuster, R.M. (2002) <em>Austral Hepaticae</em>. Part II. <em>Nova Hedwigia</em> Beih. 119: i–viii, 1–606.</p>
<p>Schütz, N., Quandt, D. & Nebel, M. (2016) The position of the genus <em>Apopellia</em> stat. nov. within the Pelliales (Marchantiophytina: Jungermanniopsida). <em>Taxon</em> 65: 221–234. https://doi.org/10.12705/652.1</p>
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