Plagiochila parvivittata Inoue var. siangensis var. nov. (Plagiochilaceae, Marchantiophyta) from Arunachal Pradesh, India

  • Siddhartha Singh Deo Botanical Survey of India, Kolkata
  • Devendra Kumar Singh Botanical Survey of India, Kolkata

Abstract

Plagiochila parvivittata Inoue var. siangensis var. nov. is described from West Siang district in Arunachal Pradesh, Eastern Himalaya, India. The new taxon differs from the typical variety in larger length/breadth ratio of leaves with fewer marginal teeth, (0-) 2–3 teeth along the dorsal margin of leaves near apex, terminal cell of marginal teeth 4–12 (-18) times longer than wide and a very distinct vitta area with the cells measuring 75–114 × 15–21 μm in size.

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Author Biographies

Siddhartha Singh Deo, Botanical Survey of India, Kolkata

Senior Project Fellow

Devendra Kumar Singh, Botanical Survey of India, Kolkata

Scientist G (Retired)

Botanical Survey of India

References

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Grolle, R. and M.L. So. 1998. Plagiochila caulimammillosa, a peculiar species from Yunnan, China.  J. Bryol. 20: 41−49.

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Inoue, H. 1987. Contributions to the knowledge of the Plagiochilaceae of southeastern Asia. XX. Studies on collections made by Dr. D. G. Long in Bhutan. Bull.  Natl.  Sci.  Mus.,  Tokyo,  B., Ser. B, Bot. 13(2): 41−51.

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So, M.L. 2001. Plagiochila (Hepaticae, Plagiochilaceae) in China. Syst.  Bot.  Monogr. 60: 1–214. doi: 10.2307/25027887.
Published
2016-03-25
How to Cite
SINGH DEO, Siddhartha; SINGH, Devendra Kumar. Plagiochila parvivittata Inoue var. siangensis var. nov. (Plagiochilaceae, Marchantiophyta) from Arunachal Pradesh, India. Plant Science Today, [S.l.], v. 3, n. 1, p. 63-67, mar. 2016. ISSN 2348-1900. Available at: <http://horizonepublishing.com/journals/index.php/PST/article/view/185>. Date accessed: 16 oct. 2017. doi: https://doi.org/10.14719/pst.2016.3.1.185.
Section
Research communications

Keywords

Plagiochila parvivittata Inoue var. siangensis; Arunachal Pradesh; Eastern Himalaya; India; new variety