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Udaria-A New Liverwort Genus of Lophocoleaceae from Eastern Himalaya, India


Affiliations
1 Botanical Survey of India, Kolkata 700 064, India
2 Botanical Survey of India, Central National Herbarium, Howrah 711 103, India
 

A new genus and species of liverwort, Udaria lamellicaulis gen. & sp. nov., referable to the family Lophocoleaceae is described from Arunachal Pradesh and Sikkim in Eastern Himalaya, India. The new taxon can be easily differentiated from hitherto all the known genera of the family in the presence of longitudinal, 1-12 cells high seriately arranged lamelliform strips on the surface of stem, leaves and female bracts, striolate-rugulose leaf cuticle, rhizoids arising from the lamina of underleaves, gynoecia with 1-2 subfloral innovations and gemmiparous female bracts and bracteoles.

Keywords

Bryophytes, Eastern Himalaya, Liverwort, Marchantiophyta, New Genus and Species, Udaria lamellicaulis.
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  • Pande, S. K., Some aspects of Indian Hepaticology (Presidential address). J. Indian Bot. Soc., 1958, 15, 221-233.

  • Singh, D. K., Liverworts. In Floristic Diversity and Conservation Strategies in India I (eds Mudgal, V. and Hajra, P. K.), Botanical Survey of India, Dehradun, 1997, pp. 235-300.

  • Singh, D. K., Singh, S. K. and Singh, D., Liverworts and Hornworts o f India — An Annotated Checklist, Botanical Survey of India, Bhubaneswar, 2016.

  • Mittermeier, R. A. et al. (eds), Hotspots Revisited: Earth's Biologically Richest and Most Endangered Terrestrial Ecoregions, Conservation International, University of Chicago Press, Chicago, 2005.

  • Rao, R. R., Floristic diversity of eastern Himalaya - a national heritage for conservation. In Himalayan Biodiversity: Conservation Strategies (ed. Dhar, U.), GB Pant Institute of Himalayan Environment and Development, Nainital, 1993, pp. 133-151.

  • Takhtajan, A., Flowering Plants, Origin and Dispersal. Oliver and Boyd, Edinburgh, 1969.

  • Soderstrom, L., Crandall-Stotler, B., Stotler, R. E, Vana, J., Hagborg, A. and von Konrat, M., Notes on early land plants today. 36. Generic treatment of Lophocoleaceae (Marchantiophyta). Phytotaxa, 2013, 97(2), 36-43.

  • Soderstrom, L. et al., World checklist of hornworts and liverworts. Phytokeys, 2016, 59, 1-828.

  • Hentschel, J., Feldberg, K., Zundorf, H.-J., Hellwig, F. H., Schneieder, H. and Heinrichs, J., The systematic position of Clasmatocolea and Pachyglossa (Jungermanniopsida: Lophocoleaceae) inferred from nrDNA ITS sequences and morphology. Taxon, 2007, 56(4), 1136-1142.

  • Srivastava, A. and Srivastava, S. C., Indian Geocalycaceae (Hepaticae) (A Taxonomic Study), Bishen Singh Mahendra Pal Singh, Dehradun, 2002.

  • Engel, J. J., A monograph of Clasmatocolea (Hepaticae). Fieldiana Bot., 1980, 3, 1-229.

  • Engel, J. J., Studies on Geocalycaceae (Hepaticae). IV. Lamellocolea, a new genus of Leptoscyphoideae from New Zealand. J. Hattori Bot. Lab., 1991, 70, 63-78.

  • Engel, J. J. and Glenny, D., Studies on Lophocoleaceae. XX. A new species of Lamellocolea J. J. Engel from New Zealand. Bryologist, 2011, 114(1), 23-27.

  • Engel, J. J., Studies on Lophocoleaceae XVII. On Leptophyllopsis R. M. Schust., with particular reference to L. laxus (Mitt.) R. M. Schust., together with a new subfamily, Lophocoleaceae subfam. Leptophyllopsoideae J. J. Engel. Nova Hedwigia, 2007, 85, 417-428.

  • Engel, J. J., Bardat, J. and Thouvenot, L., Studies on Lophocoleaceae XXI. Otoscyphus J. J. Engel, Bardat et Thouvenot, a new liverwort genus from New Caledonia with an unusual morphology. Cryptog., Bryol., 2012, 33(3), 279-289.


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  • Udaria-A New Liverwort Genus of Lophocoleaceae from Eastern Himalaya, India

Abstract Views: 283  |  PDF Views: 91

Authors

D. K. Singh
Botanical Survey of India, Kolkata 700 064, India
Shuvadeep Majumdar
Botanical Survey of India, Central National Herbarium, Howrah 711 103, India
Devendra Singh
Botanical Survey of India, Central National Herbarium, Howrah 711 103, India

Abstract


A new genus and species of liverwort, Udaria lamellicaulis gen. & sp. nov., referable to the family Lophocoleaceae is described from Arunachal Pradesh and Sikkim in Eastern Himalaya, India. The new taxon can be easily differentiated from hitherto all the known genera of the family in the presence of longitudinal, 1-12 cells high seriately arranged lamelliform strips on the surface of stem, leaves and female bracts, striolate-rugulose leaf cuticle, rhizoids arising from the lamina of underleaves, gynoecia with 1-2 subfloral innovations and gemmiparous female bracts and bracteoles.

Keywords


Bryophytes, Eastern Himalaya, Liverwort, Marchantiophyta, New Genus and Species, Udaria lamellicaulis.

References





DOI: https://doi.org/10.18520/cs%2Fv115%2Fi8%2F1536-1542