Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 736 No. 1: 24 Dec. 2025
Type: Article
Published: 2025-12-24
DOI: 10.11646/phytotaxa.736.1.9
Page range: 95-100
Abstract views: 109
PDF downloaded: 3

Taxonomic reinstatement of Metzgeria mitrata (Marchantiophyta: Metzgeriaceae) and its red list assessment

Botanical Survey of India, AJC Bose Indian Botanic Garden, Howrah-711103, West Bengal, India
Botanical Survey of India, AJC Bose Indian Botanic Garden, Howrah-711103, West Bengal, India
Liverworts IUCN status Re-establishment Taxonomy Threatened Bryophytes

Abstract

The taxonomic status of Metzgeria mitrata is evaluated and determined to be a distinct species from M. furcata. The threatened status of the species has been assessed for the first time as ‘Critically Endangered (CR)’ by applying the Criteria B of IUCN Red List Categories and Criteria Version 16.

References

  1. Dey, M. & Singh, D.K. (2012) Epiphyllous Liverworts of Eastern Himalaya. Botanical Survey of India, Thiruvananthapuram, 415 pp.
  2. Bachman, S., Moat, J., Hill, A.W., Torre, J. & Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: Smith, V&L. & Penev (eds.) e-Infrastructures for data publishing in biodiversity science. ZooKeys 150: 117–126.
  3. Bechteler, J., Schaefer-Verwimp, A., Glenny, D., Cargill, D.C., Maul, K., Schütz, N., Konrat, M., Quandt, D. & Nebel, M. (2021) The evolution and biogeographic history of epiphytic thalloid liverworts. Molecular Phylogenetics and Evolution 165 (5): 107298. https://doi.org/10.1016/j.ympev.2021.107298
  4. Corda, A.K.J. (1829) Genera Hepaticarum. Die Gattungen der Lebermoose. Naturalientausch 12: 643–655.
  5. Fuselier, L., Davison, P., Clements, M., Aguero, B., Devos, N., Heinrichs, J., Hentschel, J., Sabovljevic, M., Szövényi, P., Schuette, S., Hofbauer, W. & Shaw, A. (2009) Phylogeographic analyses reveal distinct lineages of the liverworts Metzgeria furcata (L.) Dumort. and Metzgeria conjugata Lindb. (Metzgeriaceae) in Europe and North America. Biological Journal of the Linnean Society 98: 745–756. https://doi.org/10.1111/j.1095-8312.2009.01319.x
  6. IUCN. (2024) Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. Available from: http://www.iucnredlist.org/ (accessed 11 July 2025)
  7. Kuwahara, Y. (1958) A revision of the Japanese species of the genus Metzgeria. The Journal of the Hattori Botanical Laboratory 20: 124–141.
  8. Kuwahara, Y. (1975) A recent collection of Metzgeriaceae in the Eastern Himalayas. The Journal of the Hattori Botanical Laboratory 39: 363–371.
  9. Linnaeus, C. von. (1753) Species Plantarum 2. Impensis Laurentii Salvii, Holmiae, pp. 561–1200.
  10. Miller, P. (1754) The Gardeners Dictionary...Abridged...fourth edition vol. 1. London, 11 pp.
  11. Raddi, G. (1818) Jungermanniografia Etrusca. Presso la Società Tipographica, Modena, 45 pp.
  12. Singh, D. & Singh, D.K. (2023) Liverwort and Hornwort Flora of Sikkim. Vol. I. Botanical Survey of India, Kolkata, 612 pp.
  13. Singh, D.K., Singh, S.K. & Singh, D. (2016) Liverworts and Hornworts of India - An Annotated Checklist. Botanical Survey of India, 1–439 pp.
  14. So, M.L. (2003) The genus Metzgeria (Hepaticae) in Asia. Journal of the Hattori Botanical Laboratory 94: 159–177.
  15. Söderström, L., Hagborg, A., von Konrat, M., Bartholomew-Began, S., Bell, D., Briscoe, L., Brown, E., Cargill, D.C., Costa, D.P., Crandall-Stotler, B.J., Cooper, E.D., Dauphin, G., Engel, J.J., Feldberg, K., Glenny, D., Gradstein, S.R., He, X.-L., Heinrichs, J., Hentschel, J., Ilkiu-Borges, A.L., Katagiri, T., Konstantinova, N.A., Larraín, J., Long, D.G., Nebel, M., Pócs, T., Puche, F., Reiner-Drehwald, E., Renner, M.A.M., Sass-Gyarmati, A., Schäfer-Verwimp, A., Moragues, J.G.S., Stotler, R.E., Sukkharak, P., Thiers, B.M., Uribe, J., Váňa, J., Villarreal, J.C., Wigginton, M., Zhang, L. & Zhu, R.L. (2016) World checklist of hornworts and liverworts. PhytoKeys 59: 1–828.
  16. Zheng, T.X. (2024) Typification of some Asian Metzgeria (Metzgeriaceae) taxa described by Kuwahara. Taxon 73 (6): 1488–1497. https://doi.org/10.1002/tax.13238

How to Cite

Singh, D. & Ali, S.N. (2025) Taxonomic reinstatement of Metzgeria mitrata (Marchantiophyta: Metzgeriaceae) and its red list assessment. Phytotaxa 736 (1): 95–100. https://doi.org/10.11646/phytotaxa.736.1.9